An 8-kg mass is in free fall. What is the velocity of the mass after 9 seconds?

Can we see or feel energy?

What factors affect the frictional force between objects?

You could measure distance with metric ruler is it true or false

Why does a dropped feather hit the ground later than a rock dropped at the same time? * The weight of the rock The mass of the rock The air resistance on the feather Feathers are designed for flight

What natural processes can shape rock in such a curious way

Two very small spheres are initially neutral and separated by a distance of 0.30 m. Suppose that 2.50 1013 electrons are removed from one sphere and placed on the other. (a) What is the magnitude of the electrostatic force that acts on each sphere?

Why is it important to balance a chemical equation? A. It is not important to balance a chemical equal B. To make sure you have the correct products C. To make sure you have the correct reactants D. To obey the law of conservation of mass

The presence of icicles hanging off the eaves of a wood-framed structure is most likely due to: heavy snow followed by a thaw. improper insulation in wall cavities. use of a poor-quality roof sheathing material. lack of proper roof ventilation.

Both gravitational potential energy and kinetic energy depend on

How much work is done when a 105 g tomato is lifted 19.2 m?