Answer:
definition: the moving of something from its place or position.
Explanation:
though moving around a track they will always end in the same place therefore there is no displacement from the beginning position
There is no displacement from the starting position because they will always wind up in the same place as they started.
What is displacement?Displacement is defined as the overall alteration of an object's location and motion direction. Displacement is recognized as a vector quantity since it takes into account both the direction of the motion and the magnitude of the changing position. Displacement may be zero, positive, or negative.
The initial and final positions are needed in order to calculate displacement because displacement does not provide comprehensive information on the full path length.
The displacement is the shortest distance from the starting point to the finish point, the athlete starts from the start line and reaches the finish line after running through the whole track, but the starting point and the finishing point are the same, so the displacement is zero.
Therefore, the displacement of the athlete running through the track is zero for a complete race.
To know more about displacement:
https://brainly.com/question/11934397
#SPJ2
Another unfortunate bug splatters on the windshield of a moving car. Which has the greater change in momentum---the bug or the car?
Answer:
The change in momentum for the bug and the car will be equal, impulses will be equal in opposite directions and the bug will have a greater acceleration compared to the car, because it has a smaller mass.
Explanation:
Hope this helps..
When a basketball player jumps to make a shot, once the feet are off
the floor, the jumper's acceleration
There's no question.I think these are just the answer choices
the apparent backward motion of a planet along the celestial sphere is called:
Answer:
retrograde
Explanation:
here's a pic of a slug
Helicopter rescue winch-men must dangle a metal wire below them so that it always touches the ground or water surface first. This discharges __________ __________ that may have built up on the helicopter. What two words complete the sentence?
Answer:
static electricity
Helicopter rescue winch-men must dangle a metal wire below them so that it always touches the ground or water surface first. This discharges static electricity that may have built upon the helicopter.
What is static electricity?Static electricity is a familiar electric phenomenon in which charged particles are transferred from one body to another. For example, if two objects are rubbed together, especially if the objects are insulators and the surrounding air is dry, the objects acquire equal and opposite charges.
What is static electricity caused by?Static electricity is generated by friction between two insulating materials. When the materials are rubbed together, electrons are removed from atoms within the materials, giving rise to a static electric charge.
Learn more about Static electricity here: brainly.com/question/4918499
#SPJ2
Determine the pressure due to water at the bottom of a tank which is 25 m deep and 4/5 full of water (density of water = 1000 kgm-3, g = 10 ms-2)
Answer:
c
Explanation:
ytkjsgxhxkvgakavsvdjddhdbiwbe vs
The pressure due to water at the bottom of the tank is 200000 Pascal.
What is pressure?It is the ratio between the force being applied and the surface area being applied to. The force delivered perpendicularly to an object's surface per unit area across which that force is dispersed is known as pressure.
Given parameters:
Depth of the tank = 25 meter.
Depth of water in the tank: d = 25×4/5 meter = 20 meter.
Density of water: ρ = 1000 kg/m³.
Acceleration due to gravity: g = 10 m/s².
Hence, the pressure due to water at the bottom of the tank
= depth of water (d) × density of water (ρ) × acceleration of the gravity (g)
= 20 meter × 1000 kg/m³ × 10 m/s²
= 200000 Newton/meter²
=200000 Pascal.
Hence, the pressure due to water at the bottom of the tank is 200000 Pascal.
Learn more about pressure, refer the link:
https://brainly.com/question/12971272
#SPJ2
Did anyone have any clue about this question
What is the net force on charge placed at the center of square of length 1m? All charges have same magnitude of 2 micro coulomb.
Answer:
Electric Field intensity is zero.
The reason for that is:
All charges are placed at equal distances from the center of the square and have same magnitude and sign. This means they will exert equal and opposite forces on the test charge at the center. Net force will become Zero.
A 4300-N force from a car's engines produces an acceleration of 3.3 m/s2. What is the mass of the car?
A. 4300 kg
B. 1300 kg
C. 14,000 kg
D. 390 kg
Answer:The net force acting on the car is 3×103 Newtons
Explanation:
Sue and Jenny kick a soccer ball at exactly the same time. Sue’s foot exerts a force of 68.9 N to the north. Jenny’s foot exerts a force of 85.4 N to the east.
a) What is the magnitude of the resultant force on the ball?
Answer in units of N.
Explanation:
the magnitude of the resultant force =
√(68.9² + 85.4²)
=√(4,747.21 + 7,293.16)
=√12,040.37
= 109.7 N
»Sue's style feet (north) = 68.9N
»Jenny style feet (East) = 85.4N
So, the resultant force on the ball is
= √(68.9² + 85.4²)
= √(4,747.21 + 7,293.16)
= √(12,040.37)
≈ 109.72N✅
~Physics#2
the attractive or repulsive force between objects is called
will give correct answer brainliest
Answer:
West
Explanation:
This is because the first caar has more mass
When salt is dissolved in water it actually breaks down into two different substances is salt composed of atoms or molecules
Answer:
Salt is an ionic compound, consisting of a crystal, lattice structure of the two ions Na+ and Cl-. Salt water is full of sodium chloride molecules. ... The chlorine has one extra electron and its outer electron shell is complete, so like sodium it too cannot bond with other atoms.
Have a good day! <3Miss Hawaii
Answer:
Something like table salt (NaCl) is a compound because it is made from more than one kind of element (sodium and chlorine), but it is not a molecule because the bond that holds NaCl together is an ionic bond.
What is the relationship between the variables on this graph?
The temperature does not have an effect on flow rate.
As the temperature increases, the flow rate increases.
As the temperature increases, the flow rate decreases.
Answer:
The answer is A) "As the temperature increases, the flow rate decreases."
Para estudiantes de Español:
La respuesta es A) "A medida que aumenta la temperatura, el cuadal disminuye."
Explanation:
This is correct. I took the test!
Este es correcta! Tomé la prueba!
Answer: As the temperature increases, the flow rate decreases.
Explanation:
It's Friday night and Skyler has been assigned the noble task of baby-sitting Casey, his 2-year old brother. He puts a crash helmet on Casey, places him in the red wagon and takes him on a stroll through the neighborhood. As Skyler starts across the street, he exerts a 52 N forward force on the wagon. There is a 24 N resistance force and the wagon and Casey have a combined weight of 304 N. Construct a free body diagram depicting the types of forces acting upon the wagon. Then determine the net force, mass and acceleration of the wagon.
Answer: It's Friday night and Skyler has been assigned the noble task of baby-sitting Casey, his 2-year old brother. He puts a crash helmet on Casey, places him in the red wagon and takes him on a stroll through the neighborhood. As Skyler starts across the street, he exerts a 52 N forward force on the wagon. There is a 24 N resistance force and the wagon and Casey have a combined weight of 304 N. Construct a free body diagram depicting the types of forces acting upon the wagon. Then determine the net force, mass and acceleration of the wagon.
Explanation:
When Skyler exerts a force of 52 N on the wagon and there is a 24 N resistance force and the wagon and Casey have a combined weight of 304 N then Net force, mass and acceleration of the wagon will be 305.2 N, 31.02kg and 0.9 m/s² resp.
What is Force ?Force is responsible for the motion of an object. it produces acceleration in the body. According to newton's second law force is mass times acceleration i.e. F =ma. Its SI unit is N which is equivalent to kg.m/s². There are two types of forces, balanced force and unbalanced force. when net force acting on body is zero then it is called as balanced force and net force on the body is non zero then it is called as unbalanced force. unbalanced force are responsible for the motion of the body.
in this problem, Skyler is applying 52 N force to a wagon, there is resistance of 24N of force. Combined Wight is 304 N is directed downwards. a vector diagram is shown in the figure which gives the Net force.
the resultant force between resistance and applied force
F = 52 - 24 = 28N... means total of 28N of actual force is applied on the wagon in x direction.
There is downward force as weight, hence magnitude of net force acting on the wagon is.
F²(net) = F₁²+F₂² + F₁F₂cosθ
θ = 90, cos 90 = 0
F²(net) = F₁²+F₂²
F²(net) = 28² + 304²
F²(net) = 93200
F (Net) = [tex]\sqrt{93200\\[/tex] = 305.2 N
To get mass and acceleration,
weight W = mg
304 = m*9.8
m = 31.02 kg mass of the wagon is 31.02kg
F = ma
28 = 31.02*a
a = 0.9 m/s²
Acceleration of the wagon is 0.9 m/s². this is forward acceleration.
Hence Net force, mass and acceleration of the wagon is 305.2 N, 31.02kg and 0.9 m/s² resp.
To know more about force click :
https://brainly.com/question/13191643
#SPJ3
why is the CMB in the microwave spectrum?
Answer:
The cosmic microwave background (CMB) is thought to be leftover radiation from the Big Bang or the time when the universe began. As the theory goes, when the universe was born it underwent rapid inflation and expansion. ... Which means its radiation is most visible in the microwave part of the electromagnetic spectrum.
Explanation:
Hope this helps.
will give correct answer brainliest
In a trial, an expert witness uses the conservation of momentum to demonstrate which initial velocities would give the final states that occurred in the accident. Can using the conservation of momentum be justified in this case? Yes, because momentum is conserved in all collisions. No, momentum is only conserved in elastic collisions which this is not. No, energy is always conserved, but momentum is only sometimes conserved. Yes, because momentum is conserved in inelastic collisions which all car accidents are.
What type of energy does an oven produce?
Light and Heat
Heat
Light
None of the above
Answer:
The answer is heat
Explanation:
For me, I associate thermal energy with heat energy
helppppppppppppppppppppppp
Explanation:
v²= u² + 2as
v= final velocity.
u= initial velocity.
a= acceleration.
s= distance.
What Lags harder than my Nokia
my brain.
Explanation:
...................
Answer:The Nokia XR20. ... HMD Global said the Nokia XR20 is the most durable phone it's created to date. The XR20 sports a tough 6.67-inch Gorilla Glass Victus display from American tech firm Corning and can resist damage from scratches and drops from about 6 feet, the company says.Jul 26, 2021
Explanation:
A girl is riding a bike with a velocity of 7 m/s. The bike undergoes an acceleration of 2 m/s2. What is the velocity of the bike after 2 seconds
From the information provided, the velocity after 2 seconds is 11 m/s.
From the equations of motion;
v = u + at
Where;
v = final velocity
a = acceleration
t = time taken
The initial velocity of the bike was 7 m/s and its acceleration is 2 m/s2. This change occurred within a time of 2 seconds.
Hence;
v = 7 + 2(2)
v = 11 m/s
The velocity after 2 seconds is 11 m/s.
Learn more: https://brainly.com/question/12550364
What is the acceleration of a 300. kg sled being pulled with a force of 828 N, if the coefficient of kinetic friction between the sled and the ground is 0.120?
Answer:
The acceleration of the sled is 1.584 m/s².
Explanation:
What is kinect friction force?Friction always occur when two surfaces slide across one another. For example, if we push an object and it starts moving, we can say there's a kinect (dynamic) friction force between that object and the surface under.
Now, let's solve the problem.
First, we've got to write the data down.
[tex]\bullet \quad m=300\,kg\\\\\bullet \quad F=828\,N\\\\\bullet \quad \mu_k=0.120[/tex]
Sketch a picture of the problem and point all forces acting on the sled (see attached).
Apply Newton's Second Law Of Motion:
[tex]F_{net}=m\cdot a[/tex]
Let's set our reference system positive to the right. Above equation becomes:
[tex]F-f_k=m\cdot a[/tex]
where [tex]f_k[/tex] is the kinect friction force.
Looking up free body diagram, we can see support force equals the weight of the sled, so that we can write:
[tex]F-\mu_k\cdot m \cdot g=m \cdot a[/tex]
Solving for a:
[tex]a=\dfrac{F-\mu_k \cdot m \cdot g}{m}[/tex]
Let's take 9.8 m/s² for the acceleration of gravity and plug the data on the equation.
[tex]a=\dfrac{828-(0.120)\cdot 300\cdot(9.8)}{300}[/tex]
[tex]\therefore \boxed{a=1.584\,m/s^2}[/tex]
Conclusion: the acceleration of the sled is 1.584 m/s².
Keep learning with this link:
Friction force
https://brainly.com/question/25123392
Happy studying!
Brainly Team
NEED HELP!!!!!
Imagine that Yusef had a diet with absolutely no fat. What impact would this have on his overall health?
OPTIONS:
A.
He would have absolutely no energy.
B.
He would more easily absorb nutrients.
C.
He would be unable to absorb vitamins.
D.
He would have a compromised immune system.
PLEASE NO LINKS
Answer:
A.
Explanation:
In addition to helping you lose weight by using calories on more filling foods, following a low-fat diet can help you ward off serious medical conditions, including heart disease, high cholesterol, and diabetes. The body needs some fat to function properly.
If Yusef had a diet with absolutely no fat then He would have absolutely no energy. Hence A is correct option.
What fat do to your body?Fat aids in the body's absorption of vitamins A, D, and E. These vitamins are only absorbed with the aid of lipids because they are fat-soluble. Body fat is created from any fat that is not utilized by the body's cells or transformed into energy.
According to research, the majority of fat cells in adipose tissue are produced by cells that line the blood vessels. This realization might inspire fresh methods for treating and preventing obesity. Our metabolism, reproduction, and life lengths are all regulated by white adiposity, or fat, tissue.
Hence option A is correct.
To know more about Body :
https://brainly.com/question/11062444
#SPJ2.
A ball is throw vertically upwards with a speed of 20ms,calculate the maximum height reach(g=10)
If the radio waves that are sent from the speed gun have a frequency of 400,000,002 Hz and the radio waves reflected off an approaching car have a frequency of 400, 000, 10 , what is the speed of the car? (Hz is the SI unit of frequency, equal to cycles per second).
Answer:
fL = fs(V/v-vs) 400000002= 40000010(331/331- vs). then find vs so easy
Surveyors frequently use trig functions. Suppose that you measure the angle from your position to the top of a mountain to be 2.50∘. (Figure 6) If the mountain is 1.00 km higher in elevation than your position, how far away is the mountain?
Answer:
22.9km
Explanation:
If the mountain is 1.00 km higher in elevation than your position and the angle measured from your position to the top of a mountain is 2.50∘.then you would have been 22.9 km far away from the mountain
What are trigonometric functions?A right-angled triangle's side ratios are the easiest way to express a function of an arc or angle, such as the sine, cosine, tangent, cotangent, secant, or cosecant. These functions are known as trigonometric functions.
As given in the problem you measure the angle from your position to the top of a mountain to be 2.50∘. If the mountain is 1.00 km higher in elevation than your position,
By using the tangent trigonometric function for the right triangle
tanθ = height /distance
tan 2.5° = 1000 m /distance
distance =1000 m /tan 2.5°
=22903 m
=22.9 km
Thus, the mountain is 22.9 km far away from your position
Learn more about the trigonometric functions here
https://brainly.com/question/14746686
#SPJ2
What is saturns most distinctive feature?
Answer:rings
Explanation:
4. You bought a block of cheddar from the grocery store. If you cut a small piece and a large piece from the same block of cheese, will they have the same density? Why?
Consider two future observatories in space. Observatory X consists of a single 50-meter telescope. Observatory Y is an interferometer consisting of five 10-meter telescopes, spread out over a region 100 meters across. Which observatory can detect dimmer stars, and which one can see more detail in its images
The size and aperture of the telescopes determine its ability to gather light
and reveal details.
A) Observatory X can detect dimmer stars and Observatory Y reveals more
details.
Reasons:
The benefits of using several small telescopes included the production
high resolution images of bright objects such as binary stars that reveal
more details similar to a telescope with a very large aperture, with a
process known as interferometry, through which a star's diameter can be
determined.
The benefit of a large telescope is its ability to gather light from a source,
thereby making possible to detect a dim light source, such as dimmer
stars.
Therefore;
The single large telescope in observatory X can detect dimmer stars while
the interferometer consisting of five 10-meter telescopes, spread out over a
region 100 meters across can see more detail in its images.
The correct option is; A) Observatory X can detect dimmer stars and
Observatory Y reveals more details.
Learn more here:
https://brainly.com/question/15584725
Question options:
A) Observatory X can detect dimmer stars and Observatory Y reveals more
details.
B) Observatory Y can detect dimmer stars and Observatory X reveals more
details.
C) Observatory X both detect dimmer stars and reveals more details
D) Observatory Y both detect dimmer stars and reveals more details
what thermodynamic property describes the relationship of an equilibrium to temperature?
The thermodynamic property that describes the relationship between equilibrium and temperature is Thermodynamic equilibrium
Thermodynamics is a science that focuses on explaining chemically and physically phenomenons related to:
HeatTemperatureEnergyIn thermodynamics, the thermodynamic equilibrium occurs if the temperature or heat is in balance, and therefore it will not change in regular conditions. For example:
If a liquid has the same temperature as its surroundings, the temperature is likely to remain stableThe temperature of a liquid or solid does not change unless there are specific conditionsAccording to this, thermodynamic equilibrium describes the relation of equilibrium to temperatureLearn more in: https://brainly.com/question/22447172
What possible scientific applications are there for determining the chemical composition of materials using spectral information?
Answer:
Each element absorbs light at specific wavelengths unique to that atom. When astronomers look at an object's spectrum, they can determine its composition based on these wavelengths. The most common method astronomers use to determine the composition of stars, planets, and other objects is spectroscopy.
Explanation:
Hope this helps maybe...