Aball is thrown from a height of 30 m with an initial velocity of 0m/s the final velocity is eight m/s before it hits the ground the time taken from the top to the bottom was four seconds calculate the force in newtons of the ball the mass of the ball is 12 kg

Energy is the ability to do work which measures what

Initially, a particle is moving at 5.33 m/s at an angle of 37.9° above the horizontal. two seconds later, its velocity is 6.11 m/s at an angle of 54.2° below the horizontal. what was the particle's average acceleration during these 2.00 seconds in the x-direction (enter first) and the y-direction?

A175 g lump of molten lead at its melting point (327 c) is placed into 55.0 g of water at 20.0 c. the specific heat of lead is 130.j/kg c and the hf of lead is 20,400 j/kg. when the lead and the water have reached equilibrium, what is the temperature of the mixture?