Which of the following terms describes a machine that converts heat into work?

A. Entropy pump

B. Heat engine

C. Heat pump

D. Entropy engine

Inertia is the resistance to change in nothing so inertia depends solely on what?

A penny falls from a windowsill 25.0 m above the sidewalk. How fast is the penny moving when it strikes the ground? (Remember that the velocity will be negative due to the downward motion of the penny)

Like magnetism, static electricity can attract and repel. True False

What is the universe made of? Astronomers face an embarrassing conundrum: they don't know what 95% of the universe is made of

A ball has a mass of 10 Kg. Calculate the force of weight on the ball

Why would an orange roll off your cafeteria tray if you stopped suddenly

Each shell is limited to a maximum of four electrons. True or False?

What is a hypothesis answer sentence for a lemon battery experiment

An object that is initially at rest on a frictionless floor is struck by a flying rock with an impulse jfonox. what is the final momentum of the object?

In a classroom, why can we hear the sound waves produced by the teacher talking?