a student wanted to observe how changing the temperature of the aquarium water would affect the breathing rate of his golfish. What are all of the variables in this question?

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.

d. platinum would have the greatest temperature increase because it has the lowest specific heat.