Achain 71 meters long whose mass is 24 kilograms is hanging over the edge of a tall building and does not touch the ground.

how much work is required to lift the top 5 meters of the chain to the top of the building?

use that the acceleration due to gravity is 9.8 meters per second squared.

your answer must include the correct units.

On a frictionless air track, a blue glider with mass 0.200 kg is moving to the right with a speed of 8.00 m/s. it strikes a red glider that has mass 0.600 kg and that is initially at rest. after the collision, the blue glider is moving to the left with a speed of 3.00 m/s.(a) what are the magnitude and direction of the velocity of the red glider after the collision? (b) is this collision elastic?

When flexing to a reflective style, one should be specific, brief and to the point, and maintain a fast and decisive pace?

It is advised not to hold the thermometer by the bulb while reading it