In the context of life in the universe, which of the following discoveries of astronomy suggests that the processes that formed life on Earth could have occurred elsewhere?
A) the universe is very old
B) the laws of physics are the same everywhere
C) the universe is very large
D) the chemical elements that make up life on Earth are common
B
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Why is Jupiter (in our solar system) not considered to be a "hot Jupiter"?
What will be an ideal response?
The circuit below contains three 100-watt light bulbs. The emf ? = 110 V. Which light bulb(s) is(are) the brightest?
A. A B. B C. C D. B and C E. All three are equally bright.
The innermost satellite of Jupiter orbits the planet with a radius of 422 × 103 km and a period of 1.77 days. What is the mass of Jupiter? (G = 6.67 × 10-11 N ? m2/kg2)
A) 1.33 × 1027 kg B) 1.50 × 1027 kg C) 1.72 × 1027 kg D) 1.89 × 1027 kg E) 3.08 × 1027 kg
Acceleration due to gravity on the Moon is less than on Earth, and the Moon is smaller than Earth. This means that compared to an Earth satellite, a satellite in close orbit about the Moon would travel
A) slower. B) faster. C) the same. D) need more information