Avector has a x component of -25 units and y component of 40 units find the magnitude and direction

47.2 units at

Explanation:

The components of the vector are:

x = -25

y = 40

The two components form the sides of a right triangle, of which the vector itself represents the hypothenuse; therefore, we can find the magnitude of the vector by using the Pythagorean theorem:

Concerning the direction, we can apply the formula:

The x-component is, however, negative, so the correct angle (measured anticlockwise from the positive x-axis) is

the current is 0.6

voltage ÷ resistance = current

so 12 ÷ 20 = 0.6