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kompoz [17]
3 years ago
11

Which of the followijg is an example of kinetic energy

Physics
2 answers:
andrezito [222]3 years ago
4 0

Explanation:

The answer to ur question is option D) A swing moving back n forth bcos kinetic energy is energy that is due to motion....even tho option C) states that the rubberband is stretched, it is still considered a potential enrgy bcos it is in a position that wud change from potential to kinetic energy....sp the correct ans iz option D)

Ipatiy [6.2K]3 years ago
3 0

Answer:

D

Explanation:

D. A swing moving back and forth

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at the extact same time, youj drop a piece of notebook paper and your science out the window. the science book hit first? why?
jeyben [28]
The piece of paper has less mass and will glide down the window, whereas the textbook will go straight to the ground. Since the textbook has more mass and less ways of it being able to 'glide' the textbook will hit the ground first.
8 0
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A space station, in the form of a wheel 119 m in diameter, rotates to provide an "artificial gravity" of 2.20 m/s2 for persons w
Rina8888 [55]
<span>Well, since it's in the shape of a wheel and the person walks around the edge of it, they must have a centripetal acceleration. Since a=v^2/r you can solve for "v" using 2.20 as your "a" and 59.5 as your "r" (r=half of the diameter).
</span> a=v^2/r 
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</span></span><span> After you get "v," plugged that into T=2 pi r/ v. This will give you the 1rev per sec.
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5 0
3 years ago
In a certain region of space, the electric field is zero. from this fact, what can you conclude about the electric potential in
eduard
The answer is that it is constant. The relation between electric field and electric potential is given as, E=  -gradient (V).  The E, the partial rate of change of Electric potential, in the equation implies that the V, the partial differential of the potential of the three-dimensional space (assuming it is considered) is constant. 
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3 years ago
How do you find the kinetic energy of an object? ​
Sergeeva-Olga [200]

Answer:

KE = 1/2 * m * v^{2}

Explanation:

use the formula:

KE = 1/2 * m * v^{2}

KE = kinetic energy in joules (J)

m = mass in kg

v = velocity in m/s

5 0
3 years ago
Read 2 more answers
A neutral copper block is polarized as shown in the figure below, due to an electric field made by external charges (notshown).
Fudgin [204]

Answer:

As point B is located inside the copper block so net electric field at point B is j.

Explanation:

Consider the figure attached below. The net electric field at location B,that is inside the copper block is zero because when a conductor is charged or placed in an electric field of  external charges, net charge lies on the surface of conductor and there is no electric field inside the conductor. As point B is located inside the copper block so net electric field at point B is zero as well direction of net electric field at point B is zero.

6 0
3 years ago
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