The speed of light is about 3.00 × 105 km/s. It takes approximately 1.28 seconds for light reflected from the
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Hello!
Use the equation:
Where:
m = mass of the object (kg)
g = acceleration due to gravity (≈9.8 m/s)
h = height above ground (m)
Plug the given values into the equation:
PE = 7500 · 9.8 · 100
PE = 7,350,000 Joules.
<em>it works on the following principals:
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