Students test the effects of forces that act from a distance, causing objects to move. They discover that two forces have this effects on objects. These firces are

Explain why solar energy is considered an inexhaustible source of energy

What is the equation used to calculate the total amount of energy used by an appliance?

An object is held at an unknown height above Earth's surface, where the acceleration due to gravity of the object is considered to be constant.

Extensive deforestation was carried out on a piece of land to convert it into a farmland. what is the most significant cost involved in converting the land back into a forest? a. the soil quality must be improved using fertilizers. b.

Why might there be different kinds of thermometers for measuring temperature?

What bone cells respond to stress?

What are two ways that convention currents in the ocean distribute the suns energy?

A 535 kg roller coaster car began at rest at the top of a 93.0 m hill. Now it is at the top of the first loop-de-loop. This roller coaster's track is nearly frictionless, so resistance can be ignored. Using g = 9.

A bulldozer does 45,000 joules of work to push a boulder a distance of 30 meters. How much force is applied to push the?

The atomic emission spectra of a sodium atom on earth and of a sodium atom in the sun would be