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Firstly, write down the information you know. S (displacement) - unknown U (inital speed) - 10m/s V (final speed) - 50m/s A (acceleration) - we want to find this out T (time) - 12s The equation that links ac...

we are told that E = 2000J and t = 5s we need to find P recall which formula used energy, time and power P = E/t sub in values P = 2000/5 = 400 W (DONT FORGET UNITS)

If you think of electrons as tennis balls being passed around by a circle of people, then a capacitor occurs when there is a gap between 2 people which is too large for the ball/electron to be passed on. Thi...

A pendulum bob will move fastest when the mass is at its lowest point (when x=0). The reason for this is that in the pendulum system energy is transferred between kinetic and gravitational potential energy, ...

The centripetal force can be thought of as the force that causes circular motion. When an object moves in a circle a force must always act on it, even when it moves at a constant speed. This is because veloc...