Question

Find the velocity of a particle performing vertical circular motion of radius 10m and acceleration

due to gravity 10 when it is at the at top​

Answer 1

Answer:

Since photons (particles of light) have no mass, they must obey E = pc and therefore get all of their energy from their momentum. ... If a particle has no mass (m = 0) and is at rest (p = 0), then the total energy is zero (E = 0). But an object with zero energy and zero mass is nothing at all.

Answer 2

Answer:

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Explanation:

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