A current of 6.0 A flows through a resistance of 50 . How much power is dissipated?
Question 2
Two flat rectangular mirrors are set edge to edge and placed perpendicular to a flat nonreflecting surface. A light ray that reflects from mirror 1 at angle M1 then strikes the second mirror and reflects at M2 such that the angle between the ray reaching mirror 1 and the ray leaving mirror 2 is 180. The angle between the two mirrors is
a. 0.
b. 45.
c. 90.
d. 150.
e. 235.