Imagine we have a planet identical to Jupiter around another star, with the exception that its orbit is much closer. How would its size compare to Jupiter?
A) it would be the same size
B) it would be larger
C) it would be much smaller
D) it would be slightly smaller
B
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Even though the Martian atmosphere is composed almost completely of the greenhouse gas carbon dioxide, its surface is much colder than the Earth because its
A) atmosphere is much thinner B) surface does not radiate any infrared radiation C) atmosphere contains equal amounts of gases which neutralize the greenhouse effect D) polar caps are much larger than on the Earth
Satellite A has twice the mass of satellite T, and rotates in the same orbit. Which of the following is true?
A) The speed of T is twice the speed of A. B) The speed of T is one-fourth the speed of A. C) The speed of T is half the speed of A. D) The speed of T is three-fourths the speed of A. E) The speed of T is equal to the speed of A.
A solar heating system has a 25.0% conversion efficiency; the solar radiation incident on the panels is 1000 W/m2 . What is the increase in temperature of 40.0-kg of water in a 1.00-h period by a 4.00 m2 area collector? (cw = 4186 J/kg • °C)
a. 14.3°C c. 28.7°C b. 21.5°C d. 44.3°C
What is the change in area (in cm2) of a 60.0-cm by 150-cm automobile windshield when the temperature changes from 0°C to 36.0°C. The coefficient of linear expansion of this glass is 9.0 × 10?6/°C.
A. 1.6 B. 2.9 C. 3.2 D. 4.9 E. 5.8