The velocity of sound in any gas depends upon(a) Wavelength of sound only(b) Density and elasticity of gas(c) Intensity of sound waves only(d) Amplitude and frequency of sound

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consider the figure of a single riveted lap joint as follows

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cyclic heat engine operates between. temperature of 30 C. What is the least rate of heat rejection per kW net output of an engine. source temperature of 800 C and sink

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