A steam turbine has an efficiency of 40%. A steam engine has an efficiency of 25.0%. Suppose both devices are provided with 1000 J of thermal energy. How much more useful work will the steam turbine do?

Auniform crate c with mass mc is being transported to the left by a forklift with a constant speed v1. what is the magnitude of the angular momentum of the crate about point a, that is, the point of contact between the front tire of the forklift and the ground

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?

By what primary heat transfer mechanism does the sun warm the earth?