The magnitude of the electric field at the location of the test charge is 15020 N C-1 or V m-1
We have to use F = E q
Given F = 0.751 N, q = 5*10-5 C
So required E = F /q = 0.751/5*10-5
The electric field at the location E = 15020 N C-1 or V m-1
A machine of charged debris is called having an electric powered subject, that's the physical discipline that surrounds electrically charged debris and exerts a force on all other charged particles within the subject, either attracting or repelling them. electric field costs and time-various electric currents are the building blocks of electric fields. one of the four fundamental interactions (also referred to as forces) of nature, the electromagnetic discipline, manifests itself in each electric and magnetic fields. electric powered fields are full-size in lots of branches of physics and are utilized in electrical generation. as an example, in atomic physics and chemistry, the electric area acts as an attractive force to hold atoms' atomic nuclei and electrons together.Find out more information about the electric field.
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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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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:
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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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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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 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 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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Which of the following terms best describes the average kinetic energy of a system? kinetic energy potential energy thermal energy temperature
The common kinetic energy of the device is quality described through the word temperature.
Kinetic electricity is the power that an object possesses because of its mobility from one location to another. In a comparable vein, a system's temperature measures the average amount of kinetic strength in motion. As a end result, as molecules pass (circulate) greater swiftly in a device, the gadget's temperature rises because of heat being absorbed and an growth inside the average kinetic energy of the device.
clearly put, the size of temperature is how warm or bloodless some thing is basically, a thermometer is used to measure an object's temperature, and its units are;
Fahrenheit (°F).Celsius (°C).Kelvin (K).Know more about Kinetic energy:
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A ball is dropped from a window 24M high how long will it take to reach the ground
Answer: 2.448 seconds
Explanation: it should take about 2.448 seconds, 2.45 if to nearest 100th, or 2.4 if to nearest tenth or just 2 seconds if rounded to the nearest whole number, earth's gravity is 9.8 m/s. 24 / 9.8 = 2.448979591.
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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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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If the allele frequency for the recessive single allele that causes a particular rare hair color is 0. 02, how frequently would you expect the hair color to be present in humans?.
1 in every 2500 individuals would expect the hair color to be present in humans
At a specific genomic region, an allele is one of two or more variations of the DNA sequence (a single base or a segment of nucleotides). For each genomic region with such variation, an individual inherits two alleles, one from each parent. The person is homozygous for the allele if the two alleles are the same. The person is heterozygous if the alleles are distinct from one another. The term "allele" is used to refer to a gene's alternate form or variants. For each autosomal gene, one allele is inherited from each parent, and we often group the alleles into categories. Usually, we refer to them as normal, wild-type, aberrant, or mutant alleles.
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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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earth is located at one of the moon's orbit.target 1 of 6 2. according to kepler's second law, jupiter will be traveling most slowly around the sun when at .target 2 of 6 3. earth orbits in the shape of a/an blankaround the sun.target 3 of 6 4. the mathematical form of kepler's third law measures the period in years and the blankin astronomical units (au).target 4 of 6 5. according to kepler's second law, pluto will be traveling fastest around the sun when at blank.target 5 of 6 6. the extent to which mars' orbit differs from a perfect circle is called its
1. Earth is located at one focus of the Moon's orbit.
2. According to kepler's second law, jupiter will be traveling most slowly around the sun's aphelion
3. Earth orbits in the shape of a/an ellipse around the sun.
4. The mathematical form of Kepler's third law measures the period in years and the semimajor axis in astronomical units (AU).
5. According to Kepler's second law, Pluto will be traveling fastest around the Sun when at perihelion.
6. The extent to which Mar's orbit differs from a perfect circle is eccentricity.
What is kepler's second and third law?
Kepler's second law is a mathematical principle that states the distance between two objects in space is proportional to the square of their timescale of revolution. This means that as two objects orbit around each other, the further they will be from each other over time.
Kepler's Third Law is a scientific law that states the amount of time it takes for planets to orbit their star is inversely proportional to their distance from the sun.
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Yes! All orbiting objects adhere to Kepler's Second Law and other rules as well. Pluto moves more quickly when it is nearer the sun and less quickly when it is distant from it, much like every other object in our solar system.
What is Kepler's law of planetary motion?In astronomy, Johannes Kepler's laws of planetary motion, which were written between 1609 and 1619, define the paths taken by planets as they round the Sun. The laws altered Nicolaus Copernicus' heliocentric theory, substituting elliptical trajectories for circular orbits and epicycles, thereby explaining the variation in planetary velocities. According to the three laws:
A planet's orbit is an ellipse with the Sun as one of its two foci.Equal areas are covered over equal times by a line segment connecting a planet and the Sun.The semi-major axis of an orbital system is related to the square of the planet's orbital period.To know more about Kepler's law, visit:
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If a migrating loon flies at an average speed of 19 m/s, what is its average speed in mi/hr?
Unit conversion is a way of converting some common units into another without changing their real value. The average speed of the migrating loon flies is 45.5019 miles/hr.
What is Unit conversion?Unit conversion is a way of converting some common units into another without changing their real value. for, example, 1 centimeter is equal to 10 mm, though the real measurement is still the same the units and numerical values have been changed.
Given that migrating loon flies at an average speed of 19 m/s. Now, since 1 meter is equal to (1/1609.34) miles and 1 second is equal to (1/3600) seconds. Therefore, we can write the speed as,
[tex]\rm Speed = 19\ \dfrac{meter}{second}\\[/tex]
[tex]=19 \times \dfrac{\frac{1}{1609.34}\rm\ miles}{\frac{1}{3600} \rm\ hours}[/tex]
= 19 × (3600/1609.34) miles/hr
= 42.5019 miles/ hr
Hence, the average speed of the migrating loon flies is 45.5019 miles/hr.
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How many 5-nucleotide dna sequences are possible?
a) 1024
b) 54
c) 16
d) 256
e) 64
1024 many 5-nucleotide dna sequences are possible
because its permutation and combination 5 !
Nucleotides are organic compounds made up of a phosphate and a nucleoside. They function as monomeric units of the key macromolecules found in all living forms on Earth, deoxyribonucleic acid (DNA), and ribonucleic acid (RNA), which are both nucleic acid polymers. In addition to being produced by the liver from common nutrients, nucleotides can also be received through diet.
A nucleobase, a five-carbon sugar (ribose or deoxyribose), and a phosphate group made up of one to three phosphates are the three component molecules that make up a nucleotide. Guanine, adenine, cytosine, and thymine are the four nucleobases found in DNA; uracil is used in place of thymine in RNA. These four nucleobases are necessary for a variety of cellular processes, such as the synthesis of amino acids, proteins, and cell membranes, as well as for moving the entire cell and its constituent parts.
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which activity is best described as a scientific endeavor?
Designing investigations to predict the effect of hurricanes (D) best describes a scientific endeavor.
A scientific endeavor builds scientific knowledge by postulating theories that explains any phenomenon. It might differ from what was already known as the truth. In a scientific endeavor, a problem is first identified, observations are made, hypothesis are created based on the observations and experiments are conducted to prove the hypothesis.
The other options manly focusses on developing devices and technologies to prevent or withstand hurricanes which are examples of engineering endeavors.
Therefore, Designing investigations to predict the effect of hurricanes (D) best describes a scientific endeavor.
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Determine the magnitude of the projection of f along line ac. express this component as a cartesian vector.
The magnitude of the projection of f along line ac. express this component as a cartesian vector.
General Guidance
This problem is based totally on the idea of role vector, projection of vectors and dot product.
function vector: role vector suggests the region of a factor in a vector space in terms of the unit vectors in distinct directions.
Dot Product: Dot product is used for representing vectors in scalar shape. it's also called as scalar product.
Projection of vectors-
The projection of a vector on every other vector is in reality understood as obtaining the shadow of the primary vector along the course of the second vector.
first of all, calculate the placement vector of the point C with regards to the point A. Use the expression for the projection of a vector to calculate the projection of vector.
The magnitude of the projected component of F along AC is
This component as a cartesian vector.
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name one similarity between Scientific Method and
CER
Answer:
a
Explanation:
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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how would you describe the kinetic energy of the particles in a solid? low kinetic energy high kinetic energy
Since they are tightly packed, solids vibrate in place and have the least kinetic energy.
The vibration and movement of the particles are accelerated by kinetic energy. Due to the liquid's relative higher kinetic energy, particles in it slide past one another.
Is the kinetic energy particles of a solid?The kinetic hypothesis states that matter is made up of moving parts. Kinetic energy is what propels motion. The least kinetic energy is held by solid particles, while the most is held by gaseous particles.
The particles gather kinetic energy and accelerate as the temperature rises. The actual average speed of the particles is influenced by both their mass and temperature; at a given temperature, larger particles travel more slowly than lighter ones.
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Superman used x-ray vision to detect objects. aside from detection of x-rays, what else would be needed for x-ray vision?
Superman used x-ray vision to detect objects.
You will want at least two components for x-ray detection/vision to function: an x-ray source and an absorber for x-ray.
It isn't vital for the aspect you need to peer to be the supply; it only needs to take in a number of the light. The medical expert will region your chest between the absorber and source whilst taking a chest x-ray. because the coronary heart can in part soak up mild, it'll seem whiter than the lungs, which are formed of air and cannot achieve this.
Making X-ray photographs is viable. now not within the realm of technology fiction. this is how it goes. X-rays can be created via directing high-velocity electrons at a metal surface. X-rays are equal to seen light, besides their wavelength is notably shorter (but they're nevertheless electromagnetic waves). but, X-rays engage with depend in a special way than seen mild due to the fact they have got a unique wavelength (and frequency). this implies that some substances are truly transparent, including human flesh. by using passing X-rays thru a person and placing an X-ray detector on the alternative side, you may utilize this technique to supply an X-ray photograph.
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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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consider a 50 kg cylindrical barrel resting on a wooden pallet. the pressure applied on the pallet by the barrel is 260 pa. what is the radius r of the barrel
The radius of the cylindrical barrel is 0.78 m.
Circular area of the cylindrical barrel
The circular area of the cylindrical barrel is calculated as follows;
P = F/A
A = F/P
where;
F is the applied force due to its weightP is pressure applied on the palletA is area of the cylindrical barrelA = mg/P
A = (50 x 9.8) / (260)
A = 1.885 m²
Radius of the cylinderA = πr²
r² = A/π
r = √(A/π)
r = √(1.885/π)
r = 0.78 m
Thus, the radius of the cylindrical barrel is 0.78 m.
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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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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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If 1 cup of cream having a density of 1005 kg/m3 is turned into 3 cups of whipped cream, determine the specific gravity and specific weight of the whipped cream.
The correct answer is 3.286 kN/m³ .
The ratio of the densities of two different objects or substances is known as specific gravity. The majority of the time, the definition of specific gravity is given as the ratio of the substance's density to the density of water. A substance will float on the surface of water if its specific gravity is greater than 1.
The formula to calculate the unit weight is,
γ=ρg
Here, g is the acceleration due to gravity, and ρ is the density.
mass of cream did not change
Density of cream = 1005kg/m³
As 1 cup cream becomes 3 cups,
Therefore,
hence specific gravity or specific weight we get m / 3V ( since m is same but V changed to 3V)
m/V = 1005 kg/m3
now, m/3V = ( 1/3) ( m/V) = ( 1/3) ( 1005 kg/m3) = = 335kg/m³
Now, unit weight of the whipped cream;
= 335×9.81 = 3286.35N/m³
= 3.286 kN/m³
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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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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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