This question was a concept question on my physics test.
"two identical stones are dropped from rest and feel no airresistance as they fall. stone a is dropped from height h, andstone b is dropped from height 2h. if stone a takes time t to reachthe ground, stone b will take time:
a. 2t
b. t/2
c. 4t
d. t/sqrt(2)
e. sqrt(2)*t"

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?

Why don't you see your reflection in water with waves or repples

Auniform crate c with mass mc is being transported to the left by a forklift with a constant speed v1. what is the magnitude of the angular momentum of the crate about point a, that is, the point of contact between the front tire of the forklift and the ground