Glucose molecules provide energy to power the swimming motion of sperm. in this example, the sperm are changing . kinetic energy into potential energyb. kinetic energy into chemical energyc. chemical energy into kinetic energyd. chemical energy into potential energy

Aboxcar traveling at 12 m/s approaches a string of 5 identical boxcars sitting stationary on the track. the moving boxcar collides and links with the stationary cars and they all move off together along the track. what is the final speed of the cars immediately after the collision? (you may take the mass of each boxcar to be 18,537 kg.)

In a given chemical reaction, the energy of the products is greater than the energy of the reactants. which statement is true for this reaction?

Which of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine