Kinetic energy and velocity are at zero when the magnets are held apart, and both increase rapidly when they are released and move together. Energy stored in the magnetic field decreases.
Answer:
Explanation:
An object will remain at rest or in uniform in a straight line upon an external force
Answer:
nothing will happen the cart will be broken or as it is
Answer:
Q = - 256 X 10⁻⁷ C .
Explanation:
Electric field due to a charge Q at a distance d from the center is given by the expression
E = k Q /d² Where k is a constant and it is equal to 9 x 10⁹
Put the given value in the equation
9 x 10² = ![\frac{9\times10^9\times Q}{(14+2)^2\times10^{-4}}](https://tex.z-dn.net/?f=%5Cfrac%7B9%5Ctimes10%5E9%5Ctimes%20Q%7D%7B%2814%2B2%29%5E2%5Ctimes10%5E%7B-4%7D%7D)
Q = ![\frac{9\times16^2\times10^{-2}}{9\times10^9}](https://tex.z-dn.net/?f=%5Cfrac%7B9%5Ctimes16%5E2%5Ctimes10%5E%7B-2%7D%7D%7B9%5Ctimes10%5E9%7D)
Q = - 256 X 10⁻⁷ C .
It will be negative in nature as the field is directed towards the center.
Answer:
constant horizontal force developed in the coupling C = 11.25KN
the friction force developed between the tires of the truck and the road during this time is 33.75KN
Explanation:
See attached file