The rate at wich energy is used in a circuit

A 500-kg elevator is pulled upward with a constant force of 5500 n for a distance of 50.0 m. what is the work done by the weight of the elevator?

Why are negative ions usually larger than positive ions

What are possible formulas for impulse? Check all that apply. J = Fdeltat J = StartFraction force over change in time EndFraction J = Fdeltav J = StartFraction mass over change in time EndFraction J = mdeltav J = deltap

Explain what the ionsphere is and how it interacts with some radio waves

Which statement best summarizes the central idea of "Applications of Newton's Laws"? A. Newton's laws can explain the forces that occur between objects every day. B. Newton's laws are useful for explaining why we should make good decisions. C.

G=fr²/m, m² where G is the gravitational constant "r" is the distance between two masses "m" and "m²" and "f" is the gravitational force between two masses

Which of the following is not a practical application of gravity? O A. It keeps the moon in orbit around Earth. O B. The moon has no gravity because it has no atmosphere. O C. It keeps the galaxies from flying apart. O D.

Bumper of a stationary bumper car. The momentum of the stationary car increases. Which happens to the momentum of the moving bumper car? It decreases. It stays the same. It is converted to inertia.

An electric field has a strength of 2.0 N/C. What force does it exert on a charge of 0.004 C?

Given that earth orbits at 150,000,000 km from the sun, through what distance does earth move in a second?