Answer:
Distance
Speed = ----------------
Time
Distance/Displacement
1.5m/s = ------------------------------------------
10s
Distance
1.5m/s × 10 = --------------------- × 10
10s
(Get rid of the fraction by multiplying it by the denominator in this case 10)
15m = Distance
Distance and Displacement are almost the same thing regarding this question. But watch out when you doing other questions and when you have initial velocity and initial time.
Displacement is 15m.
The medium is glass (index of refraction: 1.70)
Explanation:
We can solve the problem by using the concept of index of refraction.
The index of refraction of a medium is given by:
where
is the speed of light in a vacuum
v is the speed of light in the medium
For the medium in this problem, we have
So, the index of refraction of this medium is
And looking at tables of index of refraction of various materials, we see that various types of glass have index of refraction of 1.70.
Learn more about refraction here:
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It would be c repeated processes-that are used in a variety of ways