A plane inclined at an angle of 30^o to the horizontal has an efficiency of 60%. The force parallel to the plane required to push a load of 120N uniformly up the plane is

Similar Questions

The image of a pin formed by a diverging lens of focal length 10cm is 5cm from the lens. Calculate t...

In a ray diagram for a thin converging lens, a ray that is not parallel to the optic axis but passes...

The resultant of two forces is 50N. If the forces are perpendicular to each other and one of them ma...

The direction of induced current in a straight wire placed in magnetic field is determined by using?...

The main difference between echo and reverberation is that ...

Light Emitting Diodes (LED) used in fancy electronic devices such as toys, emit ...

The period of a simple pendulum of length 80.0cm was found to have doubled when the length of the pe...

What factors determine the frequency of a note emitted by a vibrating string? ...

I. Its velocity is constant II. No work is done on the body III. It has constant acceleration dire...

A radioactive material has a half-life of 1.0 hour If 200.0 g of it was present at 6 a.m. on a certa...