What is WgWgW_g, the work done on the block by the force of gravity as the block moves a distance LLL up the incline? Express the work done by gravity in terms of the weight www and any other quantities given in the problem introduction

What is meant by the statement" the melting poin of glycerine is 13 degree celsius

Acar traveling at 22 m/s starts to decelerate steadily. it comes to a complete stop in 15 seconds. what is it’s acceleration?

Two cannon balls weighing 18 kg and 24 kg are chained together and fired horizontally with a velocity of 165 m/s from the top of a 21-m wall. the chain breaks during the flight of the cannonballs and the 18-kg cannonball strikes the ground at t = 1.5 s, at a distance of 240 m from the foot of the wall, and 7 m to the right of the line of fire. determine the position of the other cannonball at that instant. neglect the resistance of the air.