Calculate the force between a 0.05 C charge and a 0.03 C charge 2 meters apart.

How do physicists use science? A. They are always correct. B. They use mathematics C. They have opinions D. They make observations

A skater is using very low friction rollerblades. A friend throws a Frisbee at her, on the straight line along which she is coasting.

What instrument use lenses or mirrors to collect and focus light from distant objects?

Which quantity best captures the concept of resistance? A. the ratio of voltage to current B. the product of power and voltage C. the ratio of power to current D. the ratio of voltage to power E. the product of voltage and current

Raul is riding on a train that is moving at a speed of 20.0 meters per second. Kirstin is sitting across from him, and there is a distance of 1.8 meters between them.

How did people years ago find out which side of a magnet was north and which was south?

Which change occurs when an atom undergoes decay?

A wave is moving toward shore with a velocity of 18.0 m/s. If its period is 4 s, what is its wavelength? Explain your answer.

Describe how the Catapult works?

Anything dissolved in water