Unpolarized light passes through three polarizing filters. The first one is oriented with a horizontal transmission axis, the second filter has its transmission axis 25.7° from the horizontal,
and the third one has a vertical transmission axis. What percent of the light gets through this combination of filters?
A) 7.6% B) 50.0% C) 92.4% D) 0.00%
A
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A grinding wheel has a mass of 250 kg and moment of inertia of 500 kg 
A torque of 100 N•m is applied to the grinding wheel. If the wheel starts from rest, what is the angular momentum of the wheel after 5.0 seconds?
A. 650 kg 
B. 500 kg
C. 450 kg
D. 300 kg
E. 250 kg
The escape speed at the event horizon of a black hole is c, 300,000 km/sec
Indicate whether the statement is true or false
A comet's nucleus is composed of:
A. dust, dry ice, and water ice. B. methane and hydrocarbons C. just iron D. gases, including mostly hydrogen and helium. E. iron and silicates.
In general, an insulator will have a low resistance to current flow
a. True b. False Indicate whether the statement is true or false