A body of mass m having an initial velocity v, makes head on elastic collision with a stationary body of mass
m. After the collision, the body of mass m comes to rest and only the body having mass M moves. This will
happen only when:
Two 8 N forces act on each end of the beam of length 0.60m. Two forces are parallel and acting opposite to
each other, the angle between the force and beam is 60o
, what is the torque of the couple exerted on the
beam:
A progressive sound wave is a means of transferring energy. A progressive sound waveof constant frequency is generated in air. The intensity of energy transfer is directlyproportional to another of the wave parameters. Which of the following is correct?
Two projectiles โAโ and โBโ are thrown with same speed but at angle of 40 degree and 50 degree with the horizontal. The horizontal range of โAโ will be:
The hydrogen atoms are excited to the stationary state designated by the principal quantum number n=4, the number of maximum spectral lines are observe:
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?