If the composition of the upper atmosphere were altered to permit a greater amount of terrestrial radiation to escape, Earth would be

A) cooler.
B) warmer.
C) quite unaffected.
D) none of the above


Answer: A

Physics & Space Science

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When light passing through a prism undergoes dispersion, the effect is a result of:

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What is the temperature of 3.00 moles of an ideal gas at a pressure of 250 kPa held in a volume of 25.0 L?

A) 509 K B) 90.5 K C) 752 K D) 272 K E) 251 K

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What is the magnitude of the magnetic force on a charged particle (Q = 5.0 mC) moving with a speed of 80 km/s in the positive x direction at a point where Bx = 5.0 T, By = -4.0 T, and Bz = 3.0 T?

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