A force of 10 lb is required to hold a spring stretched 4 in. beyond its natural length. How much work is done in stretching it from its natural length to 6 in. beyond its natural length?

It takes a force of 21,882 lb to compress a coil spring assembly from its free height of 6 inches to its fully compressed height of 3 inches. a. What is the assembly's force constant? b. How much work does it take to compress the assembly the first half inch? the second half inch? Answer to the nearest in-lb. a. k= lb/in

A heavy rope, 90 ft long weighs 1.4 Ib/ft and hangs over the edge of a building 150 ft high. How much work in ft-lbs is done in pulling the rope up to the top of the building?

Hello, please answer the following question and show all your work. Thank you

An inverted conical tank is 10 feet high and 7 feet in radius. Water, which weighs 9800 Newtons per cubic meter, is pumped into the tank through the bottom. How much work is required to pump in 5 feet of water?