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Mkey [24]
2 years ago
12

What is the correct answer?

Physics
1 answer:
LUCKY_DIMON [66]2 years ago
8 0

Answer:

I think is d and you or very pretty

Explanation:

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A red laser beam goes from crown glass with refraction index n=1.3 to air (n=1) with an incident angle of 0.23 radians. What is
Klio2033 [76]

Answer:

   θ = 10.28º

Explanation:

To find the angle of refraction use the equation of refraction

        n₁ sin θ₁ = n₂ sin θ₂

where index 1 is for incident light and index 2 is for refracted light.

         sin θ₂ = n₁ / n₂ sin θ

let's calculate

         sin = 1 / 1.3 sin 0.23

         sin = 0.175

        θ= 0.17528 rad

let's reduce to degrees

       θ = 0.17528 rad (180ª / pi rad)

       θ = 10.28º

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A motor does 8000j of work in 20 seconds. What is the power of the motor
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Power = work / time = 8000J / 20s = 400W

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You are retrieving your boat from the water. as a courtesy to others, when should you pull your boat into a launch lane?
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A rock at rest falls off a tall cliff and hits the valley below after 3.5s. What is the rocks velocity as it hits the ground
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T = 3.5 secs

Velocity (v) = g * t = 10 m/s^2 * 3.5 sec = 35 m/s
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A student wants to make an analogy to help her remember the characteristics of the planets. Which analogy makes the most sense?
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The last one makes the most sense as they combine two like things that are easy to visualize

Explanation:

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