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STALIN [3.7K]
2 years ago
8

Hold the paper up to a mirror so

Physics
2 answers:
Ne4ueva [31]2 years ago
5 0

Answer:

The image of everything in front of the mirror is reflected backward, retracing the path it traveled to get there. Nothing is switching left to right or up-down. Instead, it's being inverted front to back. ... That reflection represents the photons of light, bouncing back in the same direction from which they came

Explanation:

SpyIntel [72]2 years ago
5 0

Explanation:

there is a mirror reflection

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What is the entropy of a closed system in which 28 distinguishable grains of sand are distributed among 1000 distinguishable equ
baherus [9]

Answer:

193.4 J/K

Explanation:

For a closed system, the entropy is given as the natural logarithm of microstates.

The number of particles ( grains of sand ) N = 28

The number of boxes ( compartments ) M = 1000

Entropy is the logarithm of number of microstates

S=ln \psi

But the number of microstates is given by

\psi=M^{N} hence S=ln M^{N}=\ln (1000^{28})= \boxed{193.4 J/K}

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3 years ago
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2 years ago
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Which type of mirror produces images that are always upright and at the same distance from the mirror as the object is?
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Well, that would be a plane (flat) mirror 
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3 years ago
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Toy car in a science experiment covers 1.6 meters in half a second. If a the car travels at a steady speed, how far will it go i
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The answer is D. 32 m.

The simple equation that connects speed (v), time (t), and distance (d) can be expressed as:
v= \frac{d}{t}         ⇒ d=v*t

It is given:
v =  \frac{1.6m}{0.5s} = \frac{1.6m*2}{0.5s*2}= \frac{3.2m}{1s}  = 3.2 m/s
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d = ?

So:
d= v*t=3.2m/s*10s = 32m
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3 years ago
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