An object is moving with a velocity of 5ms-1. At what height must a similar body be situated to have potential energy equal in value with the kinetic energy of the moving body?

[g = 10ms-2]

Calculate the apparent weight loss of a man...
Calculate the apparent weight loss of a man weighing 70kg in an elevator moving downwards with an acceleration of 1.5ms-2.

What fraction of its volume will be immersed in the liquid?
A piece of cork floats in a liquid. What fraction of its volume will be immersed in the liquid?

[density of the cork = 0.25 x 103 kgm-3 Density of the liquid = 1.25 x 103 kgm-3]

Calculate the work done, when a force of 20N stretches a spring by 50mm.

The particle nature of light is demonstrated by the

The coefficient of friction between two perfectly smooth surface is

The resultant of two forces is 50N...
If the forces are perpendicular to each other and one of them makes an angle of 30° with the resultant, find its magnitude

A wave that travels through stretched strings is known as

To convert a galvanometer to a voltmeter, a

A house has ten 40W and five 100W bulbs. How much will it cost the owner of the house to keep them lit for 10 hours if the cost of a unit is N5?

Two liquids X and Y having the same mass
are supplied with the same quantity of
heat. If the temperature rise in X is twice
that of Y, the ratio of specific heat
capacity of X to that of Y is

Calculate the energy of the third level of an atom if the ground state energy is -24.8eV

If the linear magnification of the objective and eyepiece are 4 and 7 respectively, calculate the angular magnification of the microscope

If a current of 2.5A flows through an electrolyte for 3 hours and 1.8g of a substance is deposited, what is the mass of the substance that will be deposited if a current of 4A flows through it for 4.8 hours?

Which of the following obeys ohms law?