Yes. it is possible for an object to move for 10 seconds at a high speed and end up with an average velocity of zero.
What is average velocity?Velocity is answer to the question: How fast are you changing your position? It's basically asking for a comparison of where you are at two different times and makes rate of change quantitative. To make sense out of this, let's first write it as words equation:
The average velocity = (How far did you move?) / (How long did it take you?)
That way, doing either a bigger distance in the same time or the same distance in a shorter time both give a larger number to velocity and agree with our sense of what it means to move faster.
For the above question:
Average velocity is displacement over the time. Displacement is difference between your final position and your initial position. If you traveled in circular path, very fast, or very slow, and ended up back where you started, your displacement would be zero. Dividing your displacement of zero, by time your trip took, will give you an average velocity of zero.
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a force f1 of magnitude 106.1 lb is directed vertically upward. find a second force f2 that will produce a resultant force of 150.048 lb, 45.0° to the right of f1.
F2 = 106.1 lb directed towards left.
When two forces act on an object, the net force is always zero. To find the second force that would be required to produce a resultant force of 150.048 lb, 45° to the right of f1, you need to use Newton's Second Law: F2 = ma
Where F2 is the second resultant force and m is the mass of object A. Hence, F2 = 106.1 lb directed towards left.
What is Magnitude of force?Forces are objects or situations that cause an object to move. There are several different types of forces, including gravitational force, electromagnetic force, and the pressureForce.
Each has its own magnitude, which is the amount of energy required to cause a specified movement.
Gravitational Force is the weakest type of force and is caused by attractions between two masses. It's responsible for holding us down on Earth and governs how heavy things are relative to one another.
Electromagnetic Force is often considered the strongest type of force because it accounts for nearly all known physical interactions in nature.
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Instant Practice-Stating a Hypothesis Write a hypothesis for each of the following situations. You may wish to use an "If...then..." format. For example: If temperature affects bacterial growth, then bacterial culture plates at a higher temperature will have more bacterial colonies than those at a lower temperature. 1. The relationship between temperature and the state of water 2. The relationship between types of atmospheric gases and global warming 3. The amount of time batteries last in different devices 4. The effect of the colour of flowers on honeybee visitations
To better understand and treat caused diseases, a pure bacterial culture is still necessary for the research of its virulence, susceptibility to antibiotics, and genomic sequence.
Incubation time, nutrients, environment, and temperature were empirically changed in the early culture conditions before culture was increasingly replaced by molecular techniques. Microbiologists that specialize in intracellular bacteria were responsible for the resurgence of culture in clinical microbiology. An expansion of the archaea's repertory was made possible by the introduction of a new, adaptable media. However, among common bacterial diseases, the creation of axenic medium for the culture of Treponema pallidum or Mycobacterium leprae continues to be a significant obstacle that cultivators will be able to overcome with time and creativity.
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what is the magnitude of the electric force on an electron in a uniform electric field of strength 2490 n/cn/c that points due east?
The magnitude of electric force on an electron in a uniform electric field of strength 2490 n/c that points due east is 3.9 x 10^22 N/C as per calculated.
What is electric force?The electric force present between the nucleus and the electrons is called as electric force.
This electric force can also be generally described as the repulsive or attractive interaction that is present between any two charged bodies.
Electric force is also defined as the attracting or repulsive interaction between any two charged things.
Electric force for any kind of electric field E for a point charge q can be formulated as:
F = q*e
The SI unit of electric field can be devised as volt per meter (V/m) or in other similar terms, newton per coulomb (N/C).
This electric force can be calculated via
F= qe
⇒ F= (1.6 x 10^-19) x 2490
⇒ F = 3.9 x 10^22 N/C
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As the angle between the wires decreases, what happens to the force exerted on the wires?
A decrease in the angle between the wires will increase the horizontal component of tension (the tension force is defined as the force that is transmitted through a rope, string or wire when pulled by forces acting from opposite sides) and an increase in the angle will decrease the horizontal component of tension.
What is tension force?Tension is defined as force transmitted through a rope, string or wire when pulled by forces acting from opposite sides. The tension force is directed over length of the wire and pulls energy equally on the bodies at the ends.
Every physical object which is in the contact, exerts some force on one another. These contact forces are assigned names based on kind of objects. If one of the forces exerting an object is rope, cable or chain, we can call it tension.
Cables and Ropes can be used for exerting forces since they can efficiently transfer force over a specific distance (e.g. the rope length). Please note that tension is pulling force since ropes cannot push effectively. Pushing with a rope causes the rope to go slack and lose tension that allowed it to pull in the original place. This might seem obvious, but when it is about drawing forces acting on an object, some often draw the force of tension going in the wrong direction. Hence, tension can only pull the object.
In the almost every situation in classical mechanics, you will be presented with massless ropes and cables. When a rope is massless, it transfers force from one end to the other perfectly.
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mercury is about 0.4 au from the sun on average (40% of the earth-sun distance). according to kepler's 3rd law, a year on mercury (i.e., it's orbital period) is a year on earth.
A Year on mercury is less than 40% as long as a year on earth.
What is Kepler’s Third law?According to Kepler's Third Law, the cubes of the semi-major axes of the orbits of the planets are directly proportional to the squares of the planets' orbital periods. According to Kepler's Third Law, as an orbiting planet's radius increases, so does the time of its orbit around the Sun. Thus, we learn that Mercury, the innermost planet, completes its orbit of the Sun in just 88 days. Saturn needs 10,759 days to complete the same task as the earth does in 365 days. Despite the fact that Kepler had no knowledge of gravitation at the time he developed his three laws, Isaac Newton used them to derive his theory of universal gravitation, which explains the mysterious force behind Kepler's Third Law.
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consider a swimmer that swims a complete round-trip lap of a 50 m long pool in 100 seconds. the swimmer's...
On calculation, the Average speed of the swimmer = 1 m/s and the average velocity = 0 m/s for the swimmer
CalculationAverage speed = total distance / total time= (50+50)/100 = 1m/s
Average velocity = total displacement / total time = 0/100 = 0 m/s
What is Average speed?The overall distance that an object covers in a given amount of time is its average speed. A scalar value represents the average speed. This average speed has no direction and is indicated by its magnitude.
The formula for an object’s general speed average is [Average Speed = Total Distance Traveled Total Time Taken]. M/s is considered as the SI unit for average speed.
What is Average velocity?Average speed is determined by dividing the total distance you travelled by the total time, whereas average velocity is determined by dividing your displacement (a vector pointing from your initial position to your end position) by the whole time.
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Which generalization can be made about the climate of these two areas? san antonio, texas, experiences more dramatic seasonal changes because land heats up and cools down more slowly than water. san antonio, texas, experiences milder seasonal changes because land heats up and cools down more slowly than water. palm coast, florida, experiences more dramatic seasonal changes because water heats up and cools down more slowly than land. palm coast, florida, experiences milder seasonal changes because water heats up and cools down more slowly than land.
The generalization can be made about the climate of these two areas which are-
because water warms and cools more slowly than land, Palm Coast, Florida, has much less seasonal changes.
in step with a generalisation about the weather of these locations, Palm Coast, Florida, has softer seasonal fluctuations than different components of the country because water warms and cools greater slowly than land.
what is Palm Coast, Florida?
normally speakme, Flagler County is wherein Palm Coast, Florida, is situated. In 2000, there had been 32,832 residents; as of the 2010 census, there had been seventy five,a hundred and eighty.
In conclusion, Palm Coast, Florida, has extra slow seasonal modifications than the alternative location due to the fact water warms and cools extra slowly than land.
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a string that is under 49.0 n of tension has linear density 4.70 g/m . a sinusoidal wave with amplitude 2.50 cm and wavelength 1.50 m travels along the string.
velocity of wave v = [tex]\sqrt{t/\mu}[/tex]
v = √49/√4.7 * 10^-3
= 102.1 m/s
w = 2 π f
= 2 π (v/[tex]\lambda[/tex])
= 2 π (102.1/1.5)
= 427.04
max speed Vmax = Aw
Vmax = 2.50 * 10^-2 *427.04
Vmax = 10.675
sinusoidal wave in graphical representation of linear projection of an object moving with SHM Sine Wave Characteristics 1) Amplitude 2) Period or frequency 3) Phase Amplitude Represents strength or magnitude of vibration over time.Period and Frequency are Inversely related - as period increases (gets longer), frequency decreases (gets lower) - as period decreases (gets shorter), frequency increases (gets higher)To know more about sinusoidal wave visit : https://brainly.com/question/13641310
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A buffer system is set up with [ha] = 2[a-]. if pka = 5.5, what is the ph of the buffer?
A buffer system is set up with [tex][H_a]=2[-a][/tex]. if [tex]p_{ka}=5.5[/tex], the pH of the buffer is 5.2.
What is a buffer system?
A buffer system is a solution that prevents change in pH when acids or bases are added to the solution. They are made of either a weak acid and its salt or a weak base and its salt. The ratio of HX/X- does not change enough to affect pH significantly, when an acid or a base is added to a buffer.What are the 3 buffer systems in the body?
The body's chemical buffer system contains of three different buffers:
The carbonate/carbonic acid bufferThe phosphate bufferThe buffering of plasma proteins.To learn more about buffer system, refer to:
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How are a continental volcanic arc and a volcanic island arc different from each other?
The continental volcanic arc and a volcanic island arc different from each other is An island volcanic arc forms in an ocean basin via ocean-ocean subduction.
The Aleutian Islands off the coast of Alaska and the Lesser Antilles south of Puerto Rico are examples.
A continental volcanic arc forms alongside the margin of a continent where oceanic crust subducts underneath continental crust.
An island arc and a volcanic arc are basically the same type of geological characteristic except for the reality that one is on land and the opposite is surrounded by the usage of water.
Plate tectonics drives the arrival of volcanic arcs. A denser oceanic plate collides with a more buoyant continental plate. The oceanic crusts’ density pulls it downward into the mantle wherein excessive warmness melts it.
The molten rock and volatiles (magma) then art work their way upwards often attaining the ground and erupting. The arc form is the floor trace of the area wherein the down
going plate is melting. it's far an arc because of the truth the earth is a spherical shape.
heaps of the Pacific rim, extensively Japan, Polynesia and the Aleutians are island arcs.
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a honeybee leaves the hive and travels a total distance of 2 km before returning to the hive. what is the magnitude of the displacement vector of the bee? why?
displacement vector of the honeybee is zero
displacement = final position - initial position
so the bee travelled from and returned back to home , so final and initial position is same
so the displacement vector will be zero.
displacement is defined as change in position is determined by thedistance and direction of an object from the starting point to the ending point.direction is shown by the arrow on a displacement vectorup, down, left, right, forward, backward, toward, away from, north,south, east, or west are terms used to measure direction:meters (m) is the SI unit for distance and displacementTo know more about displacement visit : https://brainly.com/question/11934397
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in an experiment in space, one proton is held fixed and another proton is released from rest a distance of 3.50 mm away.
In an experiment in space, one proton is held desk bound and every other proton is released from relaxation at a distance of 3.50 mm. After the proton is launched its initial acceleration is four.14*10^{five}
Given data:
Electrostatic force = kq^{2} /r^{2}
F = ma
ma = [tex]= kq^{2} /r^{2}[/tex]
[tex]a = = kq^{2} /r^{2}m[/tex] ....(1)
Here,
k = [tex]9*10^{-19} C[/tex]
r = 3.50 mm
m = [tex]1.67 * 10^{-27}[/tex]
Putting the details given above into equation 1
[tex]a = \frac{9*10^{9}(1.6*10^{-19})^{2} }{(2.5*10^{-3})^{2}*1.67*10^{-27} }[/tex]
[tex]a = 4.14*10^{5}[/tex]
Electrostatic forces, as an instance, pull or push on objects without genuinely getting into contact with them. while sure substances are rubbed collectively, a phenomenon known as "rate" may be transferred from one surface to some other. Uncharged gadgets are pulled by way of charged objects, which in turn may additionally push or pull towards different charged ones.
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a sailboat on a lake sails 40 meters north and then sails 40 meters due east. compared to its starting position, the new position of the sailboat is
The new position of the sailboat is 57 m northeast. hence option 3 is correct.
The right-angled triangle's hypotenuse's square length is equal to the sum of the squares of the lengths of the other two sides, according to the Pythagoras theorem, often known as the Pythagorean theorem. Alternatively, the square of the hypotenuse of a right triangle is equal to the sum of the squares of its two legs.
Given that the boat sails 40 meters north, followed by 40 meters of straight eastward motion. The Pythagorean Theorem will be used to determine the new position.
P^2 = 40^2 + 40^2
P^2 = 1600 + 1600
P^2 = 3200
Square root of P (3200)
P = 56.6 m P = 57 m (approximately)
Consequently, the sailboat will now be 57 north east.
The complete question is- A sailboat on a lake sails 40. meters north and then sail 40. meters due east. Compared to its starting position, the new position of the sailboat is
(1) 40. m due east (3) 57 m northeast
(2) 40. m due north (4) 80. m northeast
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A car starting from rest is accelerated at a constant rate of 3.0 meters per second^2. What
is its speed at the end of 8.0 seconds?
Equations of motion are mathematical formulas that describe a body's position, velocity, or acceleration with respect to a certain frame of reference. The speed at the end of 8.0 seconds is 24 m/s.
The pace at which an object's velocity changes is known as acceleration. where an is the acceleration, v is the object's ultimate velocity, u is its starting velocity, and t is the amount of time that has passed. You can rearrange this equation to get v = u + at.
The speed at which an object's location changes in any direction. The distance traveled in relation to the time it took to travel that distance is how speed is defined.
v = 0 + 3.0 × 8.0
v = 24 m/s
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a parachutist with a camera, both descending at a speed of 10.8 m/s, releases that camera at an altitude of 44 m. (a) what is the velocity of the camera just before it hits the ground? (b) how long does it take the camera to reach the ground?
(a) The final velocity of the camera just before it hits the ground is 31.3 m/s.
(b) The time taken for the camera to reach the ground is 2.1 seconds.
The velocity of the camera before it hits the ground is calculated as follows;
v² = u² + 2gh
where;
v is the final velocity of the camerau is the initial velocityh is height of fallg is acceleration due to gravityv² = 10.8² + 2(9.8)(44)
v² = 979.04
v = √979.04
v = 31.3 m/s
Time of motion of the camerav = u + gt
31.3 = 10.8 + 9.8t
31.3 - 10.8 = 9.8t
20.5 = 9.8t
t = 20.5/9.8
t = 2.1 seconds
Thus, the final velocity of the camera just before it hits the ground is 31.3 m/s. The time taken for the camera to reach the ground is 2.1 seconds.
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A garden has a circular path of radius 50 m . John starts at the easternmost point on this path, then walks counterclockwise around the path until he is at its southernmost point.
John's displacement as he walks round the garden is 314 m counterclockwise.
What is displacement?
Displacement can be defined as the distance traveled in a a specified direction.
To John's displacement, we use the formula below.
Formula:
D = 2πr.............. Equation 1Where:
D = John's displacementr = Radius of the circular gardenπ = PieFrom the question,
Given:
r = 50 mπ = 3.14Substitute these values into equation 1
D = 2×3.14×50D = 314 m counterclockwise.Hence, John's displacement as he walks round the garden is 314 m counterclockwise.
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A 7.4 nc point charge and a - 2.1 nc point charge are 3.3 cm apart. what is the electric field strength at the midpoint between the two charges?
A 7.4 nc point charge and a - 2.1 nc point charge are 3.3 cm apart and the electric field strength at the midpoint between the two charges 3.14 × 10⁵ N/C.
To find the electric field strength, the given values are,
q1 = 7.4 nC = 7.4 × 10⁻⁹ C
q2 = - 2.1 nC = 2.1 × 10⁻⁹ C
Distance (d) = 3.3 cm apart
What is Electric field strength?The intensity of an electric field at some specific or particular location can be defined to be Electric field strength.Volt per meter (v/m or v · m -1) was the unit for Electric field strength. A electric field strength for 1 volt/meter which represents a potential difference for one volt between the points which is separated by one meter.Substituting the given values,
At first, midpoint (r) = 3.3 / 2 = 1.65 cm = 1.65/100 =0.0165 m
The electric field strength at midpoint is given by:
E = k/r² ( q1 + q2)
K = 9.0 × 10⁹
Thus,
E = ((9 × 10⁹) / 0.0165²) × (7.4 × 10⁹ + 2.1 × 10⁹)
E = (3.3057851× 10¹³) (9.5 × 10⁹)
E = 31.4049586 × 10¹³⁻⁹
E = 31.4049586 × 10⁴
E = 3.14 × 10⁵ N/C.
The Electric field strength can be found as 3.14 × 10⁵ N/C.
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Law of conservation of matter (mass)
Answer:
The law of conservation of mass or principle of mass conservation states that for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as system's mass cannot change, so quantity cannot be added nor removed. Hence, the quantity of mass is conserved over time
Explanation:
What fraction of the entire electromagnetic spectrum is spanned by visible light?.
Only 0.0035% of entire electromagnetic spectrum is spanned by visible light.
We have Electromagnetic spectrum.
We have to determine what fraction of the entire electromagnetic spectrum is spanned by visible light.
What is the range of visible spectrum in Electromagnetic spectrum ?The visible wavelengths cover a range from approximately 0.4 to 0.7 µm.
According to the question -
The visible spectrum forms a very small part almost equal to 0.0035% of the electromagnetic spectrum. In the visible spectrum, the longest visible wavelength is Red and the shortest visible wavelength is Violet. Refer to the image attached. From the image it is clear that the visible spectrum forms a very thin part of the entire spectrum.
Hence, only 0.0035% of entire electromagnetic spectrum is spanned by visible light.
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how would you describe the kinetic energy of the particles in a solid? low kinetic energy high kinetic energy
The lowest kinetic energy so they vibrate very little option (A) Low kinetic energy is correct.
What is kinetic energy?The initial energy controls the energy that an object possesses in response to the motion. The effort needed to move a material body from rest to the specified velocity is how it is defined.
The object's energy resulting from its location (potential energy) and its motion are both included in the mechanical energy (kinetic energy).
Thus, the lowest kinetic energy so they vibrate very little option (A) Low kinetic energy is correct.
How would you describe the kinetic energy of the particles in a solid?
Low kinetic energy High kinetic energy Same kinetic energy as a plasma Varying kinetic energy.Learn more about kinetic energy here:
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After which action would the concentration of a solution remain constant
adding water to the solution
adding solute to the solution
evaporating water from the container
removing solution from the container
Answer: Removing solution from the container
Explanation: Took the quiz
The action that would cause the concentration of a solution to remain constant is removing solution from the container.
What is concentration of a solution?The concentration of a solution is the measure of the amount of solid particles (solute) that has been dissolved in the given amount of a solvent.
Adding water to a solution will dilute the solution, hence changes the concentration of the solution.
Also, adding solute will change the concentration of the solution.
Thus, the action that would cause the concentration of a solution to remain constant is removing solution from the container.
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You are driving a car, travelling at a constant velocity of 25m/s along a
straight road. When you see a child suddenly run onto the road. It takes
0.45s for you to react and apply the brakes. As a result, the car slow down
with a steady acceleration of 8.5m/s 2 . Find the distance?
The distance travelled by the car when the brakes were applied is 12.11 m
Data obtained from the questionThe following data were obtained from the question:
Initial velocity (u) = 25 m/sAcceleration (a) = 8.5 m/s² Time (t) = 0.45 sDistance (s) =?How to determine the distance travelledThe distance travelled can be obtained as follow:
s = ut + ½at²
s = (25 × 0.45) + (½ × 8.5 × 0.45²)
s = 11.25 + (4.25 × 0.2025)
s = 11.25 + 0.860625
s = 12.11 m
Thus, the distance travelled in 0.45 s by the car is 12.11 m
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’s theory that magnetic forces between the sun and planets kept planets in orbital motion laid the foundation for sir isaac newton’s law of universal gravitation.
Kepler's theory that magnetic forces between the sun and planets kept planets in orbital motion laid the foundation for sir Isaac Newton’s law of universal gravitation.
The orbits of planets aren't circles however oval-shaped curves referred to as ellipses. Kepler's First regulation: The orbits of planets are ellipses with the sun at one focus of the ellipse. Planets circulate in ellipses with the sun at one consciousness. The figure under illustrates two orbits with the identical semi-important axis, awareness and orbital duration.
The sun's gravity pulls the planets in orbit round it, and some planets pull moons in orbit round them. Even spacecraft are in movement thru the sun machine, either in orbit across the Earth or Moon, or visiting to similarly worlds, because of gravitational forces.
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a 32-in.-long copper bar with a yield strength of 27,000 psi is heated to 125°c and immediately fastened securely to a rigid framework. the coefficient of thermal expansion for copper is 16.6x10-6 (1/ºc).
0.05312 is the coefficient of thermal expansion for copper is16.6x10⁶(1/ºc).
α = coefficient of thermal expansion
l = Temperature
Difference = 125 - 25 = 100°C .
α=16.6×10⁶×100×32=0.05312.
Hence, 0.05312 is the coefficient of thermal expansion for copper is 16.6x10⁶ (1/ºc).
What do you mean by thermal expansion?Thermal expansion is the phenomenon of an object (such as metal) expanding or contracting due to a change in temperature. This can happen when you warm up or cool down an object, and it affects many things including liquids, solids, and gases.
This has important implications for architects and builders who must take into account thermal movement when designing structures that will with stand weather conditions such as wind and rain. Metal plates may warp or timber beams may pull apart due to thermal expansion. Architects can design structures that are more resilient to harm from natural forces by understanding thermal expansion.
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If the human ear could not detect differences in the amplitude of sound waves, people would not be able to detect differences in the?
People wouldn't be able to distinguish between differences in sound volume if the human ear couldn't detect variations in the amplitude of undulations.
What determines the amplitude of a sound?
The amplitude of a sound wave is the life of the peak of the wave. The amplitude of a sound wave is outlined because the loudness or the quantity of most displacement of moving particles of the medium from their mean position once the sound is produced.
Amplitude of Sound. The strength or level of sound pressure. The amount of molecules in the sound wave in b is greater than the amount within the undulation in a, thus the amplitude of the sound wave in b is larger.To learn more about Amplitude of a sound, visit:
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An atom of 65as has a mass of 64.949563 amu. mass of1h atom = 1.007825 amu mass of a neutron = 1.008665 amu calculate the mass defect (deficit) in amu/atom
The mass defect is 0.585942 amu.
Calculationthe provided element is [tex]_{33} ^{65} As[/tex]
atomic number of As = 33
so no of protons = 33
mass number = Number of protons + Number of neutrons
so, no. of neutrons= 65 - 33 = 32
mass of 1 neutron = 1.008665amu
mass of 1 atom = 1.007825 amu= mass of proton
calculated mass = Number of protons*Mass of proton + Number of neutrons*Mass of neutron
= 33 x 1.007825 + 32 x 1.008665
=33.258225 + 32.27728
=65.535505 amu
Given mass = 64.949563 amu
Mass defect = 65.535505 - 64.949563
= 0.585942 amu
Concept of Mass Defect.The mass defect is the discrepancy between the nucleus of an atom’s anticipated mass and its actual mass. This discrepancy is due to the binding energy of a system, which might manifest as excess mass.
A key characteristic of a nucleus is the nuclear mass defect, which has a set value equal to a specific amount of binding energy for that nucleus.
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A runner is jogging in a straight line at a
steady vr= 7.1 km/hr. When the runner is
L= 3.3 km from the finish line, a bird begins
flying straight from the runner to the finish
line at vb= 28.4 km/hr (4 times as fast as
the runner). When the bird reaches the finish
line, it turns around and flies directly back to
the runner.
What cumulative distance does the bird
travel? Even though the bird is a dodo, assume that it occupies only one point in space
(a “zero” length bird), travels in a straight
line, and that it can turn without loss of
speed.
Answer in units of km.
The cumulative distance the bird travels is 4.4 km.
Time of motion of the bird
The time of motion of the bird is calculated from the principle of relative velocity.
distance covered by bird - distance of runner = distance between them
vb_t - vr_t = d
(vb - vr)t = d
where;
t is the time of motion(28.4 - 7.1)t = 3.3
21.3t = 3.3
t = 3.3/21.3
t = 0.155 hr
Distance traveled by the bird within this timed = 0.155 hr x 28.4 km/h
d = 4.4 km
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as you read this words in your chair, how fast are you moving relative to the chair? relative to the sun?
Although you are not moving with respect to the chair, you are moving with the Sun at a speed of more than 100,000 km/h.
The portion facing the sun is lit up (day), whereas the portion facing it in the opposite direction is dark (night). Since we are all going in the same direction at the same consistent pace, we cannot feel the Earth turning. The Earth revolves once around its axis every 24-hour day.
How quick are we compared to the speed of light?
Light travels at a regular, finite pace of 186,000 mi/sec. A traveler, shifting at the velocity of light, could circumnavigate the equator about 7.5 instances in a single second. By comparison, a traveler in a jet aircraft, shifting at a floor pace of 500 mph, could pass the continental U.S. as soon as in four hours.To learn more about Velocity of sun, visit:
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A satellite in earth orbit has a semi-major axis of 6,700 km and an eccentricity of 0.01. what are the satellite's geometric altitude at apogee?
The satellite's geometric altitude at apogee is =388.9km
The given data are:-
a=6700 km
e=0.01
R(earth)=6378.14km
R(p)=Radius at perigee
R(a)=Radius at apogee
where R(p)=a(1-e)
=6700(1-0.01)
=6633km
Altitude at perigee=6633-6378.4
=254.9km
R(a)=a(1+e)
=6700(1+0.01)
=6767km
Altitude at apogee=6767-6378.14
=388.9km
The satellite's geometric altitude at apogee is 388.9km.
What is apogee?
An Earth-orbiting satellite has an apogee, that is its finest top above the planet, and a perigee, that is its lowest peak above the planet. How excessive above sea level is supposed with the aid of "above Earth" (which varies barely, so that is a super). What the satellite tv for pc is appearing determines what the height "must" be. about 22,000 miles above Earth, in geosynchronous orbit, are a large quantity of verbal exchange satellites. The reality that they orbit on the identical velocity because the Earth approach they may be continually above the identical spot on its surface, which is exceptionally beneficial.
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a rock takes 2.65 s to hit the ground when it is thrown straight up from the cliff with an initial velocity of 8.2 m/s
rock that takes 2.65 s to hit the ground when it is thrown straight up from the cliff with an initial velocity of 8.2 m/s with gravity 9.8 [tex]m/s^2[/tex], then the height of the tower is 12.8 m.
Motion under gravityAcceleration under gravity is represented by the letter g and is 9.8 [tex]m/s^2[/tex]. We refer to this motion as motion under gravity. The whole mass of our Earth is what creates gravity. The combined gravitational force of all of its mass acts on the mass in any kind of body.
The equations would be modified as follows when an object is falling freely under the force of gravity:
H = ut + ½ [tex]gt^2[/tex] and v = u + gt
[tex]V^{2}[/tex]= [tex]U^{2}[/tex] + 2gh
At the highest point,
V= U-gt
0= 8.2 - 9.8t
[tex]t_{1}[/tex] = 8.2/9.8
= 0.833
then we calculate [tex]h_{1}[/tex] = [tex]\frac{U^2}{2g}[/tex]
[tex]h_{1}[/tex] = 3.43 m
Then calculating for second half, when it is in free fall,
[tex]t_{2}[/tex] = 2.65-0.83
= 1.82
u=0 a =g and [tex]t_{2}[/tex] = 1.823
[tex]h_{2}[/tex] = 1/2 x 9.8 x [tex](1.82)^2[/tex]
=16.23 m
So, thus the exact height of the building = 16.23 - 3.43 = 12.8 m
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