What happens to the velocity of a sound wave in air if the temperature of the air increases?
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Physics, 28.10.2019 22:31 princesskhj6932
What happens to the velocity of a sound wave in air if the temperature of the air increases?
a velocity increases
b. velocity does not change
c. velocity decreases
d. velocity drops to zero
Answers: 2
Physics, 21.06.2019 22:30
Which expression allows you to determine the mechanical advantage of an inclined plane? a. height of plane / input force b. length of plane / input force c. length of plane / height of plane d. height of plane / length of plane
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Atwo-stage air compressor operates at steady state, compression 10m^3/min of air from 100 kpa and 300k to 1200 kpa. an intercooler between the two stages cools the air to 300k at a constant pressure of 350 kpa. the compression processes are isentropic. a) calculate the power required to run the compressor, in kw b) compare the result to the power required for isentropic compression from the same inlet state to the same final pressure.
Answers: 1
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