Which type of energy is involved in the operation of simple machines? A. chemical energy B. electrical energy C. mechanical energy D. thermal energy

Explain Newton's First Law for the following. If you walk across the room holding a ball, when should you drop it to ensure that it lands on a target? Before, after or when you are directly on the target?

What matter will hold it's shape without a container

What are two ways to write an isotope of fluorine with 9 neutrons and no protons

Two students suggest different functions for the battery plays a flashlight. Student A: "The battery supplies the charge which allows the light bulb to light. When the battery no longer works, it is because it has run out of charge.

The earth exerts a gravitational force of 500 N on an object. What is the mass of the object in kg

The train traveled 500 kilometers north to Odessa in 2 hours. What's the train's speed? What is the velocity?

Are microwaves and radio waves faster or slower than other types of electromagnetic energy?

If you dive under-water, you notice an uncomfortable pressure on your eardrums due to the increased pressure. The human eardrum has an area of about 70 mm2 (7*10-5m2), and it can sustain a force of about 7 N without rupturing.

Why cant kinetic energy ever be greater than potential energy

For a stationary observer, when the source of a sound is moving, its pitch appears to change.