Find the work (in ft-lb) required to pump all the water out of a cylinder that has a circular base of radius 5 ft and height 300 ft. Use the fact that the weight-density of water is 62.4 lb/ft3. ft-lb Find the work (in ft-lb) required to pump all the water out of the cylinder if the cylinder is only half full.

Write a similarity statement for the similar triangles. afgh ~ a

Aspacecraft can attain a stable orbit 300 kilometers above earth if it reaches a velocity of 7.7 kilometers per second. the formula for a rocket's maximum velocity v in kilometers per second is vequalsminus0.0098tplusc ln upper r, where t is the firing time in seconds, c is the velocity of the exhaust in kilometers per second, and r is the ratio of the mass of the rocket filled with fuel to the mass of the rocket without fuel. find the velocity of a spacecraft whose booster rocket has a mass ratio of 20, an exhaust velocity of 2.1 km/s, and a firing time of 15 s. can the spacecraft achieve a stable orbit 300 km above earth?

What is the surface area of the sphere?