An object is placed 20cm from a lens. If an image is formed on a screen 260cm away from the lens, calculate the magnification of the image

An object weight 10N immersed in a liquid displaces a quantity of the liquid. If the liquid displaced weighs 6N, determine the upthrust of the object

The amplitude of the motion of a body performing simple harmonic motion decreases with time because

A block weighing 15N rests on a flat surface and a horizontal force of 3N is exerted on it. Determine the friction force on the block

Which of the following equations represents the distance x, travelled by a body moving on a straight road with a constant speed? [The other symbol have their...

A spring balance,which is suspended from the roof of a lift, carries a mass of 1kg at its free end. If the lift accelerates upwards at 2.5ms-2, determine the...

The apparent weight of a body fully immersed in water is 32N and its weight in air is 96N. Calculate the volume of the body. [Density of water = 1000kgm-3, g...

Which of the following statements about pressure is not correct? pressure

Which of the following physical processes cannot be explained by the molecular theory of matter?