Which of the following potential energy curves in Fig. cannot possibly describe the elastic collision of two billiard balls? Here r is distance between centres of the balls.
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A body is initially at rest. It undergoes one-dimensional motion with constant acceleration. The power delivered to it at time t is proportional to
(i) t1/2 (ii) t (iii) t3/2 (iv) t2
will gravity will be quantized or not ? if not then universe will be still probablistic if quantum mechanics already introduces randomness ? so if gravity wont quantized still universe will be probabilisitc ?
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