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Komok [63]
3 years ago
13

The law of reflection states that light is reflected off a surface at the same angle that light hits the surface. The arrow on t

he right of the diagram that shows the direction of light is the a
Question 4 options:

a.incident ray


b.refracted ray


c.coincident ray


d.reflected ray
Physics
2 answers:
kap26 [50]3 years ago
7 0

A. Incident ray is the answer

Yuliya22 [10]3 years ago
6 0

Answer:

a

Explanation:

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A ball is thrown upwards at an unknown speed. in a time of
alexandr402 [8]

Answer:

a)  Initial speed of the ball = 14.45 m/s

b) At height 6 m speed of ball = 9.55 m/s

c) Maximum height reached = 10.65 m

Explanation:

a)  We have equation of motion s=ut+\frac{1}{2} at^2, where s is the displacement, u is the initial velocity, t is the time taken and a is the acceleration.

s = 6 m, t = 0.5 seconds, a = acceleration due to gravity value = -9.8m/s^2

 Substituting

    6=u*0.5-\frac{1}{2} *9.8*0.5^2\\ \\ u=14.45m/s

 Initial speed of the ball = 14.45 m/s

 b) We have equation of motion v^2=u^2+2as, where v is the final velocity

   s = 6 m, u = 14.45 m/s, a = -9.8m/s^2

    Substituting

        v^2=14.45^2-2*9.8*6\\ \\ v=9.55m/s

  So at height 6 m speed of ball = 9.55 m/s

c) We have equation of motion v^2=u^2+2as, where v is the final velocity

   u = 14.45 m/s, v =0 , a = -9.8m/s^2

   Substituting

     0^2=14.45^2-2*9.8*s\\ \\ s=10.65 m

  Maximum height reached = 10.65 m

8 0
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What will a spring scale read for the weight of a 57.0-kg woman in an elevator that moves upward with constant speed of 5.0 m/s
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The spring scale will read 559 Newton's or 125.7 pounds.
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The pickup truck has a changing velocity because the pickup truck
yaroslaw [1]

Answer:

travilng on a curve in the road

Explanation:

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When conducting and experiment you want to have a notebook and something to write down notes with so you can keep everything organized and proper, and to not miss anything in the experiment. Also you want to have everything in order of the way it should be in.

I hope you found this helpful!

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Inertia is the resistance of an object to moving or stopping
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