2. Select the correct answer.
What is the sport official for a soccer game called?
OA Umpire
OB. Judge
Referee
OD. Mediator
ASAP
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Suppose that 27 j of work is needed to stretch a spring from its natural length of 6 m to a length of 9 m. (a) how much work is needed to stretch the spring from 12 m to 14 m? j (b) how far beyond its natural length will a force of 78 n keep the spring stretched?

The electric potential a distance r from a small charge is proportional to what power of the distance from the charge? a. r^-1 b. r c. r^-2 d. r^2

The fine detail of saturn's rings provides evidence that the planet may be: a. young b. millions of years old c. in a state of growing larger