A woman standing on the surface of Earth has a mass of 70 kg and a weight of 700 N. If instead she is floating freely inside a non-rotating space habitat far from Earth, her mass would be
1) less than 70 kg
2) 70 kg
3) more than 70 kg
and her weight would be
4) less than 700 N.
5) 700 N.
6) more than 700 N.
Answer: 2, 4
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Specific Heat: A 4.0-kg aluminum block is originally at 10°C. If 160 kJ of heat is added to the block, what is its final temperature? The specific heat capacity of aluminum is 910 J/kg ? K.
A. 24°C B. 34°C C. 44°C D. 54°C
Kuiper Belt Objects that are caught in a 3:2 orbital resonance with Neptune are referred to as _____
A) aurorae B) plutinos C) ovoids D) ovoli
Star A and star B both have an apparent magnitude of 4.0, but star A has an absolute magnitude of 1.0 and star B has an absolute magnitude of 7.0. Which statement below is correct?
A) Star A appears brighter than star B, but actually star B and star A are the same brightness. B) Star B appears brighter than star A, but actually star B and star A are the same brightness. C) Star A and star B appear to have the same brightness, but actually star B is brighter than star A. D) Star A and star B appear to have the same brightness, but actually star A is brighter than star B. E) It is impossible to determine how bright these stars are or appear to be relative to one another, given the information above.
When did Ptolemy live?
A) about 5000 years ago B) about 100 years ago C) about 1000 years ago D) about 2000 years ago E) about 500 years ago