Suppose you and your sister travel at different speeds in space and you note a slowing of her clock. Compared with her clock your sister will notice that your clock runs

A) faster.
B) slower.
C) the same.
D) need more information


Answer: B

Physics & Space Science

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Which of the following do winds on Mars NOT cause

A) global dust storms B) local dust storms C) hurricanes D) dust devils

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If the energy of n = 5 is –0.544 eV and that of n = 2 is –3.40 eV in a hydrogen atom, a transition from n = 2 to n = 5 will absorb a photon of what energy?

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The efficiency of a Carnot engine operating between 100°C and 0°C is most nearly:

a. 7%. c. 27%. b. 15%. d. 51%.

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