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Stars x and y are both bluish main sequence stars. star x has a higher absolute brightness than star y. how do the two stars compare? explain
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Who was the first scientist to measure speed as distance over time?
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A40.0 l tank of ammonia has a pressure of 12.7 kpa. calculate the. volume of the ammonia if itβs pressure is changed to 8.4 kpa while its temperature remains constant.
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What is the efficiency of an engine that does 80 j of work and exhausts 320 j of heat while taking in 400 j of heat ? a. 10% b. 20% c. 80% d. 25%
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One type of atomic particle that is found in the nucleus does not contribute to
an element's atomic...
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