Solution :
Mass of the particle = M
Speed of travel = v
Energy of one photon after the decay which moves in the positive x direction = 233 MeV
Energy of second photon after the decay which moves in the negative x direction = 21 MeV
Therefore, the total energy after the decay is = 233 + 21
= 254 MeV
So by the law of conservation of energy, we have :
Total energy before the decay = total energy after decay
So, the total relativistic energy of the particle before its decay = 254 MeV
Explanation:
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The mass of one washer is 0.0049 kg.
The mass of two washers is 0.0098 kg.
The mass of three washers is 0.0147 kg.
The mass of four washers is 0.0196 kg.
Answer:
A) vertically upward
Explanation:
Since the tyre is rotating with uniform angular speed and moving with constant linear speed
So as soon as a small stone is stuck into the groove of the tyre the speed of the stone is same as that of the tyre
so now we can say that stone will start revolving with the tyre of the car at constant angular speed and moving with uniform speed also
so here just after that the tangential acceleration of the stone must be zero while radial acceleration must be towards the center of the tyre given as

so we will have direction of net acceleration is towards its center so correct answer will be
A) vertically upward