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Physics, 22.06.2019 03:10
Aphysical change is a change in the size, shape,, or stafe of matter true or false
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Physics, 22.06.2019 10:30
What are two different ways you could find the value of a? explain these methods.
Answers: 2
Physics, 22.06.2019 12:50
Air is contained in a variable-load piston-cylinder device equipped with a paddle wheel. initially, air is at 400 kpa and 17°c. the paddle wheel is now turned by an external electric motor until 75 kj/kg of work has been transferred to air. during this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. calculate the required amount of heat transfer in kj/kg.
Answers: 2
Physics, 22.06.2019 18:20
Wavelength of 125 meters is moving at a speed of 10 m/s. what is it's frequency?
Answers: 1
A kangaroo jumps straight up to a vertical height of 1.45 m. How long was it in the air before retur...
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