A tank that is 59 feet deep, with a square bottom with sides 6 feet each, has 20 feet of oil that weighs 95 lb/ft3 in it. How much work will it take to pump the oil to the rim of the tank?

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?

a classroom measures 10 meters by 8 meters with a ceiling height of 3 meters. If 1 L of paint covers 15m squared how many liters of paint are needed to cover the walls of the room?

An electric elevator with a motor at the top has a multistrand cable weighing 3 lb/ft. When the car is at the first floor, 110 ft of cable are paid out, and effectively 0 ft are out when the car is at the top floor. How much work does the motor do just lifting the cable when it takes the car from the first floor to the top? The amount of work required is ft-lb. (Simplify your answer.)

A cylindrical oil tank 8ft deep holds 380 gallons when filled to capacity. How many gallons remain in the tank when the deep of oil is 5 1/2ft What’s the number of the gallons in the tank

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?

How much force would you need to lift 160 lbs?