Water in a dish is set on a table in an initially empty closed room and begins to evaporate. The temperature of the water will
A. remain the same.
B. begin to decrease.
C. begin to increase.
D. not be able to be predicted based on the information given.
Answer: B
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Suppose the Moon's orbit were unchanged, but it rotated faster (meaning it did not have synchronous rotation). Which of the following would be true?
A) The Moon would go through its cycle of phases (from one new moon to the next) in less time than it does now. B) We would no longer always see nearly the same face of the Moon. C) Tides would be stronger; that is, higher high tides and lower low tides. D) High tides would occur more frequently than they do now. E) All of the listed choices are true.
Neptune circles the Sun at a distance of 4.50 × 1012 m once every 164 years. Saturn circles the Sun at a distance of 1.43 x 1012 m. What is the orbital period of Saturn?
A) 304 y B) 121 y C) 109 h D) 88.6 y E) 29.4 y
A transiting extrasolar planet is observed to block 1% of its host star's light. How does the radius of this planet compare to the radius of the host star?
A) The planet's radius is 0.1% of the host star's radius. B) The planet's radius is 1% of the host star's radius. C) The planet's radius is 10% of the host star's radius. D) The planet is the same size as the host star.
An empty spice bottle has an inner volume of 1.31 × 10?4 m3. It has a mass of 112 g when filled with air, and it displaces 1.63 × 10?4 m3 of water when fully submerged. What fraction of the total volume of the bottle will be beneath the surface when it is placed in a tank of water?
A. 0.69 B. 0.81 C. 0.85 D. 1.00 E. 1.46