The force of gravity on a 2-kg rock is twice as great as that on a 1-kg rock. why then doesn't the heavier rock fall faster?

Three nested coffee filters fall, quickly reaching a terminal speed of ~ 1.7 m/s. If the air resistance force on a single falling coffee filter was F1, how large is the air resistance force on the three falling filters?

3. If atoms are mostly empty space, why can't we walk through walls?

Describe how a lever can increase the force applied without changing the amount of work being done

How much work is needed to lift a 3kg mass a distance of 0.75m

When using a film camera, what must you do to bring an object into focus? a. move the lens toward or away from the film. b. close the diaphragm. c. adjust the speed of the shutter. d. adjust the angle of the mirror.

Which best describes the relationship between internal energy and thermal energy? Thermal energy is a measure of the internal energy of a substance. Internal energy is a measure of the thermal energy of a substance.

5. Consider two glasses, one filled with water and the other half-full, with the water in the two glasses being at the same temperature.

1. Why is the theory that all things are made up of atoms a theory and not a fact?

A 600 N astronaut travels to an asteroid where the gravitational force is one-hundredth that of Earth. What is the astronaut's weight on the asteroid?

The analysis of data leads to what