Physics, 31.08.2019 18:10 zianebonankenotdbev
If the frequency of a sound wave is 250 hertz and its wavelength is 1.36 meters, what is the wave's velocity?
Answers: 1
Physics, 22.06.2019 16:40
The astronauts on the space shuttle flights experienced an acceleration of 29 m/s2 (about 3 "g's") during lift-off. what upward force must the astronaut's seat apply to the astronaut in order to cause this acceleration? assume the astronaut's mass is 70 kg, and compute this force when the acceleration is near the earth's surface so their weight equals latex: mg m g .
Answers: 3
Physics, 22.06.2019 17:00
Air conditioners not only cool air, but dry it as well. suppose that a room in a home measures 5.0mĆ9.0mĆ2.4m . if the outdoor temperature is 30 āc and the vapor pressure of water in the air is 85 % of the vapor pressure of water at this temperature, what mass of water must be removed from the air each time the volume of air in the room is cycled through the air conditioner? the vapor pressure for water at 30 āc is 31.8 torr.
Answers: 3
Physics, 22.06.2019 19:30
Which of these has some mechanical energy? a. an atom b. heat inside earth c. a book on a shelf d. the fire from a lit match
Answers: 1
If the frequency of a sound wave is 250 hertz and its wavelength is 1.36 meters, what is the wave's...
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