What is the wavelength of the sound
A tuning fork vibrates at a frequency of 256 Hz. What is the wavelength of the sound coming from the fork when the air temperature is a) 0oC and b) 20oC
a) 1.29 meters
b) 1.34 meters
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An engine of mass 180 kg is to be supported on four helical springs. When the engine speed is 900 rpm, there is a primary vertical periodic disturbing force of maximum value 300 N due to the unbalanced reciprocating weights.
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Air within a piston-cylinder assembly, initially at 175psi, 660oF, undergoes an isentropic expansion to 20 psi. What is the final temperature of the air?
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