Jupiter radiates twice as much energy as it receives from solar light; the source of this "excess" energy is ________
Fill in the blank(s) with correct word
gravitational contraction
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A firecracker breaks up into two pieces, one of which has a mass of 200 g and flies off along the +x-axis with a speed of 82.0 m/s. The second piece has a mass of 300 g and flies off along the +y-axis with a speed of 45.0 m/s
What is the total momentum of the two pieces? A) 361 kg ? m/s at 56.3° from the +x-axis B) 93.5 kg ? m/s at 28.8° from the +x-axis C) 21.2 kg ? m/s at 39.5° from the +x-axis D) 361 kg ? m/s at 0.983° from the +x-axis E) 21.2 kg ? m/s at 56.3° from the +x-axis
If the atmosphere were about 40 times thicker, at noon the Sun would appear
A) red-orange. B) orange-green. C) green-blue. D) blue-violet. E) none of the above
A number of epochs is called a(n)
a. eon. b. period. c. millennia. d. era.
The principle of original horizontality states that each
A) sedimentary layer is older than the layer above. B) sedimentary layer is younger than the layer above. C) new layer of sediment is laid down nearly horizontally over older sediment. D) new layer of sediment is laid down accordingly.