What is the magnetic force of a 30m long power line that carries a current of 50A. The magnetic field runs perpendicular to the power line and has a strength of 30T. A. 45000 T/N

B. 45 V

C. 45 N

D. 45000 N

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.

If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.

Avertical clean glass piezometer tube has an inside diameter of d = 1 mm and is used to measure pressure in a horizontal pipe carrying water as shown. due to pressure in the pipe, the water at 20c rises into the tube to a height h. if the water pressure in the pipe is p = 500 pa gauge, estimate the height h: (a) without considering surface tension (b) with surface tension (capillary) effects. the contact angle  can be assumed at 30 deg