Heat and Work are not completely interchangeable forms of energy

Work can be converted completely into heat

Heat and Work are not completely interchangeable forms of energy

Work can be converted completely into heat

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Total outcomes={HH,HT,TH,TT}=4

Favorable outcomes(at least one head)={HT,TH,HH}=3

Probability of getting at least one head = favorable outcomes/total outcomes = 3/4

Hence Probability of getting at least one head is 3/4

Buoyant force for a floating body passes through centroid of the displaced volume.

The bolts in a rigid flanged coupling connecting two shafts transmitting power are subjected to shear Force and Bending moment.