Imagine you are riding on a school bus. Which two objects would appear to be moving from your seat on the bus?
A. The seats on the bus
I B. The clouds above the bus
O c. The street outside the bus
D. The floor of the bus

Unpolarized light falls on two polarizer sheets whose transmission axes are at right angles. a third polarizer is placed between the first two so that its axis makes a 52-degree angle with the axis of the first polarizer. a) what fraction of the incident light intensity is transmitted through the first polaroid? b) what fraction of the incident light intensity is transmitted through the second polaroid? c) what is the angle of polarization of the light that enters the third polaroid? d) what fraction of the incident light intensity is transmitted through the third polaroid. e) what happens if the middle polaroid is removed?

An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects