Which statement describes what happens when Bret runs up a flight of stairs?

His kinetic energy increases.

His potential energy decreases.

His kinetic energy is converted into potential energy.

His potential energy is converted into kinetic energy.

which statement best describes an asteroid? A. large chunks of rock with many craters that orbit the sun. B. Pieces of rock or dust that shine or flicker in the earth's atmosphere. C. An object made of ice, gas, and dust that orbits the earth. D.

In which sound wave application are sound waves absorbed? - echolocation - ultrasonic cleaners - ultrasound imaging

Brittany stands at rest on a skateboard. the combined mass of brittany and the skateboard is 62 kg. dave tosses a 3.7-kg pumpkin to brittany, and when she catches it, she and the skateboard begin to roll backward with a speed of 0.16 m/s.

A deep canyon in the ocean floor is called

The mass of an ice cube in a dish is 3 grams. What is the mass of the melted ice cube in the same dish mast likely to be

When light (or another wave) bounces back from a surface?

The idea that mental states are dispositions to behave in particular ways in certain Circumstances is known as

What device consists of coils with many turns and is used in speakers, motors, and other electronic equipment? magnet solenoid generator turbine

What can we conclude from observing an attractive force between a positively charged rod and an object?

In what state do hydrogen and helium exist in a star