Minutes and Seconds of an angle

Find the number of degrees,minutes and seconds in the angle at the centre of a circle, whose radius is 5m .which is subtended by an arc of length 6m

The ratio of angular speeds of minutes hand and seconds hand in a watch is

What percent is 1 minute 10 seconds of half an hour?

Two guns were fired form the same place at an interval of 10 minutes and 30 seconds, but a person in the train approaching the place hears the second shot 10 minutes after the first. The speed of the train (in km/hr), supposing that sound travels at 330 metres per second, is

Express the following angle in degrees, minutes and seconds form (321.9)^(@)

The angle between the minute and hour hand of a clock at 8:30 is

In an alpha -particle scattering experiment , 100 particles are scattered per minute at an angle of 60^@ . Calculate the number of particles per minute scattered at an angle of 30^@