What kind of motion indicates a system where the net force equals zero

A 20.0-kg rock is dropped and hits the ground at a speed of 90.0 m/s. Calculate the rock's gravitational potential energy before it was dropped. (Ignore the effects of friction.)

Suppose students experiment with the tube and a variety of darts. Some darts have higher masses than others but are the same aerodynamic shape. Assume air resistance is negligible for the darts.

Mitochondria what object of a is a exsample of a mitochondria

A fullback with a mass of 100kg and a velocity of 3.5 m/s duewest collides head-on with a defensive back with a mass of 80 kgand a velocity of 6 m/s due east. a.) What is the initial momentum of each player? b.

Is electricity a compound, element, or a mixture?

Julia rides her horse 12 miles in 45 minutes. What is her average speed in mi/min? Show Your Work.

What happens to the inertia of an object of its mass is decreased?

An object has an acceleration of 24 m/s/s. How long would it take the stationary object to reach a velocity of 6.8 m/s?

What is normal distribution in statistics?

Which of the following water samples would be considered acidic