A text book of physics, for the use of students of science and engineering (1918)
Duncan, John, d. 1941, Starling, Sydney George, 1873- · London Macmillan · leaf 381
tation. Hence the net resistance is(W + P-w;), and this is overcome through adistance equal to the circumference of thedrum during each revolution. If D is thediameter of the drum, and if it makes Nrevolutions, then the total work done is(W + P-»)-DN. The following record of a test with the… … i/y Fig. 364.- -Brake of Callendarsmachine. Determination of the Mechanical Equivalent of Heatuy Callendars Machine. Diameter of the drum, D Brake load,W Load at spring balance end, w Pull of the spring balance, P - Initial counter reading - Final „ ,, Total revolutions during the test, N Mass of…
Physics
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