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1 answer:
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Explanation:
At a height of 93 m, the gravitational potential energy is given by :
P = mgh
Where, m is the mass of a penny
We can find its mass.
We need to find how much potential energy will have transformed into kinetic energy at the half way point (46.5m). It can be calculated as :
Hence, a penny will have transferred 1.499 J of potential energy into kinetic energy.
Complete Question
At what angle should the axes of two Polaroids be placed so as to reduce the intensity of the incident unpolarized light to 1/5.
Answer:
The angle is
Explanation:
From the question we are told that
The light emerging from second Polaroid is 1/5 the unpolarized
Generally the intensity of light emerging from the first Polaroid is mathematically represented as
Generally from the Malus law the intensity of light emerging from the second Polaroid is mathematically represented
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From the question
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