To break a chemical bond, particles need to collide with a certain amount of a]energy. b]atoms. c]molecules. d]chemicals.

the following is the most reasonable weight in units of newtons for an average adult? 120 N 27 N 1000 N 603 N

A ball rolls down a ramp for 15 seconds. If the initial velocity of the ball was 0.8m/s and the final velocity was 7 m/sec, what was the acceleration of the ball?

A pumper is supplying a 400-foot hoseline with 120 gpm flowing. The hoseline is composed of 250 feet of 2½-inch hose reduced to 150 feet of 1½-inch hose.

run at the same speed and in the same direction, and they both run for the same amount of time, what can you say about the distance they travel?

Which of the following is an example of homeostasis? A. Humans wear hats in the sun. B. Humans like to play sports. C. Humans sweat when they are hot. D. Humans cover their ears when there is a loud noise.

Which statements regarding the sun's nuclear fusion are true? select all that apply. a. nuclear fusion only occurs in the core. b. hydrogen fuses to form helium. c. fusion in the sun will continue for at least 1 trillion more years. d.

Scientists can find the absolute age of a rock by using a uranium 235 dating b carbon 14 dating c carbon 12 dating d relative dating

What do scalars measure force acceleration magnitude velocity

Why do metals differ in specific heat? why is Al much higher than gold

Witch kind of force do you exert on an object when you pull towards you A-Applied force B-Attractive force C-Drag force D-Normal force