To determine power, it is necessary to know the (2 points) a. energy required and the time it takes. b. amount of work and the distance covered. c. amount of work in a given time. d. distance and time it takes to do work.

a. energy required and the time it takes.

Explanation:

As we know that power is defined as rate of work done

so we know that

so here we also know that

so we can say

so here we require the change in energy and time in order to find the power consumed

so correct answer is

a. energy required and the time it takes.

the current is 0.6

voltage ÷ resistance = current

so 12 ÷ 20 = 0.6

the components of a vector are the parts of the vectors that are to each other.

b perpendicular