A machine of efficiency 80% is used to lift a box. If the...
A machine of efficiency 80% is used to lift a box. If the effort applied by the machine is twice the weight of the box. Calculate the velocity ratio of the machine
0.50
0.63
0.80
1.60
Correct answer is B
Y = \(\frac{M.A}{V.R} \times \frac{100}{1}\)
= \(\frac{\frac{1}{2}}{V.R} \times \frac{100}{1}\)
V.R = 0.625
Which is a stringed Instrument? ...
A piece of substance of specific heat capacity 450Jkg\(^{-1}\)k\(^{1}\) falls through a vertica...
The diagram above illustrates a waveform. Determine the number of wavelengths in it ...
The instrument that measures both ac and dc is called ...
what part of the camera corresponds to the iris of the eye? ...