The voltage of the domestic electric supply is represented by the equation V = 311 sin314.2t. Determine the frequency of the a.c. supply [π π = 3.142]

The diagram above shows two wave forms P and Q at a particular instant in time. the two waves will interface

A uniform light beam XZ is Hinged at X and kept in equilibrium by the forces T and F as shown in the diagram above. if XO = 20m and OY = 30cm, express T in t...

When the sun, moon and the earth are as shown in the diagram above an observer standing in X is in

In the diagram above, which of the angles θ1 θ 1 , θ2 θ 2 , θ3 θ 3 and θ4 θ 4 is the angle of deviation of the ray of light passing through the glass prism XYZ?

The figure above shows a block of mass m sliding down a rough inclined plane QP at angle θ θ . The forces acting on the block along QP are

For what value of 6 are the forces in the diagram above in equilib4ruim

One of the features of the fission process is that

For a rough inclined plane on which lies a body of weight W, the angle θ in the diagram above becomes the angle of friction if