A radio wave has a wavelength of 150m. If the velocity of radio waves is free spaces is 3 x 10\(^8\) ms\(^{-1}\), calculate the frequency of the radio wave

A boy travels 8 km eastward to a point B and then 6km northward to another point C. Determine the difference between the magnitude of displacement of the boy...

The magnitude of the force required to make an object of mass, m move with speed, v in a circular of radius r is given by the expression

A man was moving round a circular path continuously for 4 minutes and covered the following distances in the times stated : Distance (in metres) 200, 400, 60...

One common characteristics of solids, liquids and gasses is that?

The force between the molecules of a liquid in contact with that of a solid is

A reservoir is filled with a liquid of density 2000kgm-3. Calculate the depth at which the pressure in the liquid will equal to 9100Nm-2 [g = 10ms-2]

A car takes off from rest and covers a distance of 80m on a straight road in 10s. Calculate the magnitude of its acceleration

A solid weight 45N and 15N respectively in air and water. Determine the relative density of the solid