Author Question: When running and jumping to score, a basketball player seems to hang in the air because a. his or ... (Read 73 times)

cool · **on:** Jul 28, 2018

When running and jumping to score, a basketball player seems to hang in the air because
a. his or her acceleration is zero.
b. his or her horizontal velocity is quite small.
c. both components of motion are zero.
d. his or her vertical velocity is quite small.
e. levitation is possible with practice.

Question 2

The rate of a chemical reaction would be increased by
a. increasing the surface area of the reactants.
b. increasing the concentration of the reactants.
c. adding a catalyst to the reactants.
d. heating the reactants.
e. all of the above.