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Vladimir79 [104]
2 years ago
12

What forces are acting on a dropped book that falls to the floor?

Physics
1 answer:
pav-90 [236]2 years ago
5 0

Answer:

i believe its gravity

Explanation:

when something falls it is gravity doing its job

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An incident ray strikes a boundary at a 72.5-degree angle, resulting in an angle of refraction of 39.6 degrees. The index of ref
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Refractive index is the ration of sin i to sin r where i is the incident angle and r is the refraction angle. 
Therefore, refractive index = sin 79.5 / sin 39.6
                                           = 1.542
The refractive index may be given by the ratio of refractive index of medium 2 to refractive index of medium 1. 
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Medium 2 is sodium chloride, refractive index of 1.54

 
6 0
3 years ago
Read 2 more answers
Classify Use periodic table to classify the elements potassium (K) ,Bromine (Br) and argon, (Ar) according to know likely their
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8 0
3 years ago
What is the velocity of a quarter drooped from a towards after 10secounds
ArbitrLikvidat [17]
U=0 
<span>t=10 </span>
<span>a=9.8m/s/s </span>
<span>v is velocity (the tower must be very high to be able to fall for 10 seconds!!!) </span>

<span>you work out the result now</span>
6 0
3 years ago
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