What is a "hertz" in physics?

How does a kitchen sponge floating in water compare to the zone of saturation and the water table

The earth has radius R. A satellite of mass 100 kg is in orbit at an altitude of 3R above the earth's surface. What is the satellite's weight at the altitude of its orbit

What is the normal force of a 251.4 kg object resting on a surface (in Newton's)

What is the main thing that holds soil in place?

A contact force is a force which A. can occur over long distance. B. occurs when two objects are near enough to influence each other. C. occurs when two objects are touching each other. D. can occur over short distances.

What is the most advanced life form on earth

Which EM wave is about the size of humans?

Describe how the Catapult works?

Newton's third law of motion states that the force pair acting on different objects consist of two forces that

While working on her science fair project Venus connected a battery to a circuit that contained a light bulb. Venus decided to change the light bulb to a higher resistance, but she wanted to keep the current the same.