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natta225 [31]
3 years ago
12

Explain the expression “light travels at a speed”.

Physics
1 answer:
Anestetic [448]3 years ago
7 0
Some things travel faster than the speed of light
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Answer:

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Explanation:

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  • You need to rearrange it to time=distance/speed
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What type of speed looks at a particular point in time?
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3 years ago
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Ivanshal [37]

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3 years ago
What constant acceleration, in SI units, must a car have to go from zero to 60 mph in 10 s? How far has the car traveled when it
nalin [4]

Answer:

Explanation:

initial velocity, u = 0

final velocity, v = 60 mph = 26.8 m/s

time t = 10 s

Let a be the acceleration and s be he distance traveled.

Use first equation of motion

v = u + a t

26.8 = 0 +  a x 10

a = 2.68 m/s

Use second equation of motion

s = ut + 1/2 at²

s = 0 + 0.5 x 2.68 x 10 x 10

s = 134 m

As, 1 m = 3.28 ft

So, s = 134 x 3.28 ft

s = 439.6 ft

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. You are in an airplane flying over the ocean. How could you most accurately determine your distance from the water?
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