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Marianna [84]
3 years ago
9

A 65 kg diver jumps off a diving platform, rises about 1m above the platform, then falls to the pool. What is the divers momentu

m at her highest point in the dive?
Physics
1 answer:
leonid [27]3 years ago
4 0

Answer: 0 kgm/s

Explanation: The formulae for momentum is given below as

Momentum = mass × velocity.

The highest point of the diver is simply the point at the maximum height.

Let us assume that the motion of the diver is of a free fall.

For a free fall motion, velocity = 0 m/s and acceleration = - g, where g = 9.8

Hence, at maximum height, v = 0 and m = 65kg hence momentum = 65 × 0 = 0 kgm/s

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Sabiendo que el indice de refracción dela gua es 1,33 calcula el ángulo de refracción resultante para un rayo de luz que incide
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Answer:

35.16 degrees

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Knowing that the index of refraction of the guide is 1.33, calculate the resulting angle of refraction for a ray of light that falls on a pool with an angle of incidence of 50º

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We need to find the angle of refraction. let it is r. It can be calculated using Snells law as follows:

n=\dfrac{\sin i}{\sin r}\\\\\sin r=\dfrac{\sin i}{n}\\\\r=\sin^{-1}(\dfrac{\sin i}{n})\\\\r=\sin^{-1}(\dfrac{\sin 50}{1.33})\\\\r=35.16^{\circ}

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