A body moves a distance of 10 m along a straight line under the action of a force of 5 N. If the work done is 25
joules, the angle which the force makes with the direction of motion of the body is?
The distance between the plates of a charged parallel plate capacitor is 4mm and potential
difference is 6 volts. If the distance between the plates is increased to 12mm, then :
Nuclear fission experiments show that the neutrons the uranium nuclei into two fragment
of about the same size. This process is accompanied by the emission of several:
A listener observes the frequency “f” of stationary source. If it move toward with 3
times of velocity of sound. Then the apparent frequency of the sound will be
A stone of mass 0.5kg tied with a string of length 1m is moving in a horizontal circle with a speed of 4ms-1
. The
tension acting on the string in newton is: