The sun emits energy by converting hydrogen into helium. what is this process called?

Frequency causes us to hear: a. style. b. volume. c. pitch (high and low). d. form. e. i don't know.

What type of phase change occurs when water vapor in the atmosphere changes to liquid water in clouds?

Dry cells become soft even when not in use. Explain.

What is dark energy? a. energy inside a black hole b. a form of the cosmic microwave background radiation c. electromagnetic radiation that is not in the visible spectrum d. whatever is causing the accelerating expansion of the universe

How do electromagnetic waves form?

An electric vehicle starts from rest and accelerates at a rate of 2.1 m/s2 in a straight line until it reaches a speed of 25 m/s. The vehicle then slows at a constant rate of 1.2 m/s2 until it stops. (a) How much time elapses from start to stop

We traveled all the way across the U. S. In some states, it rained; in others, it was hot and dry. But, the West Coast beaches were the best! What climate zone is being described? tropical temperate polar subtropical

Imagine two starts are exactly the same size, but one of the stars to greater mass than the other. which star will burn out all of its fuel first

How many eclipses normally occur each year? a. 2 b. 5 c. 7 d. 4

At what distance from equilibrium is the energy of a sho half kinetic and half potential?