The light passing through the grating (horn) appears to be creating patterns of bright and dark fringes. In terms of light in the real world, what do the fringes mean

Two vectors are shown. which statement best compares the vectors? vector x has greater magnitude than vector y. vector y has greater magnitude than vector x. the vectors have the same displacement. the vectors have the same direction.

Ammonia enters the expansion valve of a refrigeration system at a pressure of 10 bar and a temperature of 18oc and exits at 6.0 bar. the refrigerant undergoes a throttling process. determine the temperature, in oc, and the quality of the refrigerant at the exit of the expansion valve.

Using the free-body diagram, calculate the net force acting on the sled. is the sled in a state of dynamic equilibrium?