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Did you know?
The observable universe is ~93 billion light-years across — and it's still expanding.
Did you know?
The observable universe is ~93 billion light-years across — and it's still expanding.
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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