Aball is released from the top of a hill. how fast is the ball going when it reaches the base of the hill? approximate g as 10 m/s2 and round the answer to the nearest tenth.

How many molecules are present in 3 mols of silicon dioxide (sio2)?

When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative

What is the mass of the water that is being heated? it requires 2,500 joules to raise a certain amount of water (c = 4.186 jig c) from 20.0°c to 60.0°c. o 159 o 40 g o 63 g o 80 g