Which of the following types of electromagnetic radiation has the lowest energy?
a. X-rays
b. visible light
c. ultraviolet
d. gamma rays
e. infrared radiation
e
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Instructions: On occasion, the notation 
will be a shorthand notation for 
.
Given that 
and 
, what is 
? ?
A.
B.
C.
D.
E.
Two small cylindrical plastic containers with flat bottoms are placed on a turntable that has a smooth flat surface. Canister A is empty; canister B contains lead shot. Each canister is the same distance r from the center. The coefficient of static friction between the canisters and the turntable is ?s. When the speed of the turntable is gradually increased,
a. only the lighter container slides outward off the turntable; the heavier one stays on. b. only the heavier container slides outward off the turntable; the lighter one stays on. c. both containers slide off the turntable at the same turntable speed. d. the lighter container slides inward. e. the heavier container slides inward.
Where are red giants on the H-R diagram?
A. upper left B. lower right C. lower left D. upper right
The type of asteroid that would appear darkest and reflect the least light is type:
A) A. B) B. C) C. D) D. E) S.