I have 22 electrons; how many protons and neutrons do I have?

second mirror gathers light from a faraway object and reflects it to another mirror. - a.

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

-reverse card

54 degrees incident angle = reflected angle

angle is from normal turned to line of ray