Simple Pendulum: On the Moon, the acceleration of gravity is g/6. If a pendulum has a period T on Earth, what will its period be on the Moon?

A. T
B. T/
C. T/6
D. 6T
E. T/3


Answer: A

Physics & Space Science

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Thin Lenses: A cup that is 6.0 cm tall is in front of a concave lens. The image of the cup is 2.5 cm tall and 7.5 cm from the lens. What is the focal length of the lens?

A. -6.0 cm B. -7.5 cm C. -13 cm D. +18 cm E. +6.0 cm

Physics & Space Science

Which of the following is not an observed characteristic of the cosmic microwave background?

A) It contains prominent spectral lines of hydrogen, the primary chemical ingredient of the universe. B) It has a perfect thermal radiation spectrum. C) Its temperature is the same everywhere, except for small variations at the level of 1 part in 100,000. D) Its temperature is a little less than 3 Kelvin (3 degrees above absolute zero).

Physics & Space Science

Instructions: On occasion, the notation = [A, ?] will be a shorthand notation for .

? Exhibit 3-3 The vectors  and  are shown below. ? ? Use this exhibit to answer the following question(s). Refer to Exhibit 3-3. Which diagram below correctly represents  ? A.


B.

C.

D.

E.

Physics & Space Science

Heat transfer by radiation occurs via

a. electromagnetic waves b. nuclear decay c. molecular collisions d. the solar wind e. none of the above

Physics & Space Science