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Deffense [45]
1 year ago
5

The angle of reflection is the angle between the normal line and the _____.A.imageB.mirrorC.reflected rayD.incident ray

Physics
1 answer:
Montano1993 [528]1 year ago
4 0

ANSWER:

C. reflected ray

STEP-BY-STEP EXPLANATION:

The line that divides the angle between the incident ray and the reflected ray into two equal angles is known as the normal line.

Therefore, the angle between the reflected ray and the normal is known as the angle of reflection.

Therefore, the correct answer is C. reflected ray

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A scientist is examining an unknown solid. which procedure would most likely help determine a chemical property of the substance
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4 years ago
A rock is thrown upward with a velocity of 18 meters per second from the top of a 38 meter high cliff, and it misses the cliff o
Roman55 [17]

The rock would be at a point 12 m from water at a time <u>4.8 s</u>.

Take the origin of the coordinate system at the top of the cliff. It is thrown upwards with a velocity u. When the rock is at a point 12 m from water, calculate the vertical displacement of the rock from the origin.

y= -38m- (-12 m)=-26 m

Use the equation of motion,

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The rock falls under the acceleration due to gravity, directed down wards.

Substitute 18 m/s for u, -26 m for y and -9.8 m/s² for a=g.

y=ut +\frac{1}{2} at^2\\ (-26 m)=(18m/s)t+\frac{1}{2}(-9.8m/s^2)t^2

Solve the quadratic equation for t.

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