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2 years ago

6

A beam of light, initially travelling in the air, strikes water surface at an angle of 24.5° with the normal. If the speed of li

ght in water is 2.22 × 10^8ms^-1, determine the angle of refraction?

1 answer:

kykrilka [37]2 years ago

8 0

Answer:

Explanation:

n = 3.00e8/2.22e8 = 1.35

1.00sin24.5 = 1.35sinθ

θ = 17.9°

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2 years ago

In a physics lab, Asha is given a 10.7 kg uniform rectangular plate with edge lengths 67.3 cm by 53.5 cm . Her lab instructor re

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Explanation:

Given:

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where:

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We know that the center of mass of the rectangular plane is at its geometric center which is parallel to the desired axis XX' .

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3 years ago

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85,500,000 kg*m/s=m(900 km/h)

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Get same units.... 900km/h = 250m/s

m/s cancel in the division, you are left with just kg!!

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3 years ago

a 28.7 KG sled is pulled forward with a 63 net force across the ground with MK equals 0.169 what is the acceleration of the sled

abruzzese [7]

Answer:

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The acceleration of the sled is $0.54\ \text{m/s}^2$ .

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3 years ago