Why are many scientists concerned about humans adding large amounts of carbon to the atmosphere by burning fossil fuels (combustion)? A. When carbon is released into the atmosphere it floats into outer space, and is lost forever. B. The atmosphere has a limited capacity to absorb and recycle carbon naturally. C. If the atmosphere gains too much carbon, birds won't be able to fly. D. Carbon is a poisonous chemical, which can kill plants.
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What distance does a car travel as its speed changes from 0 to 20 m/s in 17 s at constant acceleration?
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Select all the correct answers. which three statements about electromagnetic radiation are true?
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The protons in a nucleus are approximately 2 ✕ 10^−15 m apart. consider the case where the protons are a distance d = 1.93 ✕ 10^−15 m apart. calculate the magnitude of the electric force (in n) between two protons at this distance.
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During the apollo moon missions, astronauts were concerned about the effects of newton's third law of motion when: o a. they ejected waste water, because they were concerned that it would push them off course. o b. they reentered earth's atmosphere, because they were carrying heavy moon rocks. o c. they took off from earth, because a large force was required to generate large acceleration. o d. they detected incoming space debris, because the inertia of the debris could damage their ship.
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Why are many scientists concerned about humans adding large amounts of carbon to the atmosphere by b...
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