Solar energy is produced by

A. fusion of light nuclei to make heavier ones

B. the slow release of heat left over from the Sun's formation

C. fission of heavy nuclei into lighter ones

D. solar magnetism

What occurs at thermal equilibrium?

Circular motion has to be a complete circle true or false

Which statement best defines work? A. Work is the time it takes to move an object once acted upon by a force. B. Work occurs when balanced forces act on an object and cause movement in the direction of these forces. C.

You have three identical resistors that you can connect in various ways. Which of the following is NOT a possible value of the equivalent resistance of the three-resistor combinations? A. 3RB. R/3 C. 2R/3D. 3R/2

What build proteins for cell function in a animal cell

A tow truck pulls a 500 kg car so that the car accelerates 2 m/s2. What is the net force on the car? 250 N 498 N 1000 N 502 N

Which force keeps you near earths surface?

Name one process that requires a force in the human body.

Which describes the electric forces inside an atom

Why can radio telescopes be used 24 hours a day?