Light is incident on a piece of glass in air at an angle of 33 degrees from the normal. If the index of refraction of the glass
is 1.5, what is the angle in degrees that the refracted ray makes with the normal?
1 answer:
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Answer:
F = 768 N
Explanation:
It is given that,
Speed of the elevator, v = 3.2 m/s
Grain drops into the car at the rate of 240 kg/min,
We need to find the magnitude of force needed to keep the car moving constant speed. The relation between the momentum and the force is given by :
Since, the speed is constant,
F = 768 N
So, the magnitude of force need to keep the car is 768 N. Hence, this is the required solution.