The diagram above illustrates a block ans tackle pulley system in which an effort E supports a load of 100.0N. If the efficiency of the machine is 75%, calculate the value of E

Similar Questions

Using venier calipers, which of the following readings gives the correct measurement for the le...

An iron rod of mass 2kg and at a temperature of 280oC is dropped into some quantity of water initial...

A cell of e.m.f. 1.5v is connected in series with a resistor of 3$\Omega$. A high resistance voltm...

Simple harmonic oscillator has a period of 0.02s and amplitude of 0.25m. Calculate the speed in ms-1...

In the circuit above, three resistors, 2Ω, 4Ω and 12Ω are connected in parallel an...

If the temperature of water is gradually increased from 0o to 4oC, the density of the water within t...

Which of the following statements about a moving object is correct? ...

A gas at pressure PNm$^{-2}$ and temperature 27°C is heated to 77°C at constant volume. Th...

A sound of frequency 512 Hz reaches a listener 100 m away. If the sound travels in air at s.t.p., wh...

The lower and upper fixed points marked on a mecury-in-glass thermometer are 210mm apart. The end of...