There is an increase in the amount of work completed; all other factors have remained the same. the amount of power will:
a.) decrease, then increase.
b.) increase.
c.) decrease.
d.) remain the same.

B.) increase.

Explanation:

The power used is defined as follows:

where

W is the work done

t is the time needed to do that amount of work

In this problem, there is an increase in the amount of work done (W), while the other factors (the time, t) remain the same. From the formula, we see that the power is directly proportional to the work done, so we can say that if the work increases, then the power increases as well.

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

because if the tool that you are using is not balanced it there would be false mass.