Go to a long wall facing the sun go to one end and ask your friend to bring a bright metal object near the other end of the wall. When the object is a few inches from the wall it appears distorted and you will see a reflected image in the wall as though wall were a mirror. Why is there an image of the object on the wall

What is the momentum of a 2 kg object moving at 15 meters per second

There are two-speed cameras, one in an are where the speed limit is 30 km/h and another where the speed limit is 50 km/h. in which will there be a smaller time interval between the photographs? explain your answer.

Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.