Which substance is used to remove rust from metal?

A: lye (NaOH)

B: hydrochloric acid (HCl)

C: ammonia (NH3)

D: sulfuric acid (H2SO4)

How does the lever arm change if you decrease the angle of the force?

Determine the change in velocity of a car that starts at rest and has a final velocity of 20 miles per second North

Two unequal forces acting in opposite directions result in a what force

Complete the sentence. An atom that loses an electronic is called an ... and has an overall ... charge.

The centripetal force acting on the space shuttle as it orbits Earth is equal to the shuttle's (1) inertia (3) velocity (2) momentum (4) weight

Name six processes that are often involved in scientific inquiry.

What happens to the ball's velocity while the ball is traveling upwards?

What will happen to this current if a magnet is brought near the cord?

A 2.0 kilogram rifle initially at rest fires a 0.002 kilogram bullet. As the bullet leaves the rifle with a velocity of 500 meters per second, what is the momentum of the rifle - bullet system?

Do different volumes of water have the same density? Why or why not?