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A Harmonic motion is expressed as x(t) = 0.6cos(18pi*t - pi/6), where x(t) is measured in inches, t in seconds and the phase angle in radians. Determine:
a) the frequency in rad/s and in Hz.
b) the period of motion.
c) the amplitude of maximum displacement, velocity and acceleration.
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If the filling is done rapidly, calculate the final temperature in the small cylinder, (a) assume that oxygen is an ideal gas with Cv= 5R/2 and (b) using accurate thermodynamic data for oxygen.
1 the critical crack length for a through crack in a thick plate of 7150-t651 aluminum alloy that is in uniaxial
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