An airplane is flying at 200 m/s at an angle of 30o north of east. How fast is the plane flying North? Please show how you got your answer.

If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a.true or b.false

Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?

Determine the moment of the force f about an axis extending between a and c. express the result as a cartesian vector. a is at the origin, c is at (4,3,0) and f = (4i + 12j -3k) lb coming out of b (4,3,-2).