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Did you know?
A bolt of lightning heats the surrounding air to ~30,000 K — five times hotter than the Sun's surface.
Did you know?
A bolt of lightning heats the surrounding air to ~30,000 K — five times hotter than the Sun's surface.
A particle is released from height from the surface of the Earth. At a certain height, its kinetic energy is three times its potential energy. The height from the surface of Earth and the speed of the particle at that instant are respectively:
To solve this problem, we need to analyze the energy transformations as the particle falls.Initially, the particle is at height with potential energy and zero kinetic energy.The potential energy at height is given by:
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