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We apply energy conservation. At the start the cart has only gravitational potential energy given by mgh where m is its mass, g is the gravitational field, h = 8m is the height. At the end the cart has on...

A coulomb the amount of charge that passes in 1 second when the current is 1 ampere.Q = It t = 5 x 60 = 300 (s) we must use Si units in physics hence the conversion to seconds here. Q = 5 x 300 Q = 1500 (...

The object accepts electrons from the surface it is on, electrons have a negative charge.

A half life of a substance is the time it takes for the mass of a radioactive substance to decrease by half. Say you have 50g of carbon-14, you are looking for the amount of time it takes for the mass to...

The student will draw a picture of a plane with an arrow for weight acting downwards, an arrow for lift acting normal to the wings upwards and an arrow inwards for the central force that a rotating object...