Answer:
Explanation:
The velocity of the swimmer just before touching the water is:
The average force exerted on the diver by the water is determined by the use of the Principle of Energy Conservation and the Work-Energy Theorem:
A car has a mass of 1200 kg. A man can comfortably push down with a force of 400 N. If the small piston in a hydraulic jack has
1 answer:
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The energy of a single photon is given by:
where
E is the energy
h is the Planck constant
f is the frequency of the light
The light in our problem has a frequency
, so the energy of each photon of that light is:
where
E is the energy
h is the Planck constant
f is the frequency of the light
The light in our problem has a frequency