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3 years ago

The diagram below illustrates the law of reflection.

Physics

2 answers:

Elanso [62]3 years ago

6 0

Answer:

The measure of angle B equals the measure of angle C.

Explanation:

This is because, angle B represents the angle of incidence of the incoming light and angle C is the angle of reflection of the incoming light. According to the law of reflection, angle of incidence equals angle of reflection. So, the measure of angle B equals the measure of angle C.

AlekseyPX3 years ago

5 0

Answer:

Explanation:

Took the test on edge 2020

got it right

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2 years ago

The strong interaction is necessary for the formation of which of the following?

sleet_krkn [62]

Answer:

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3 years ago

A cannonball is catapulted toward a castle. The cannonball’s velocity when it leaves the catapult is 51.6 m/s at an angle of 37.

Andrei [34K]

Answer:

$v_{y}=35.21m/s$

Explanation:

From the exercise we know the cannonball's initial velocity, the angle which its released with respect to the horizontal and its initial height

$v_{o}=51.6m/s\\\beta =37.0º\\y_{o}=7m$

If we want to know whats the y-component of velocity we need to use the following formula:

$v_{y}^2=v_{oy}^2+ag(y-y_{o})$

Knowing that $g=-9.8m/s^2$

$v_{y}=\sqrt{((51.6m/s)sin(37))^2-2(9.8m/s^2)(0m-7m)}=35.21m/s$

So, the cannonball's y-component of velocity is $v_{y}=35.21m/s$

6 0

3 years ago

Can someone please help with this page

Allisa [31]

I have a strong hunch that if you read through pages 184 to 187 in the book,
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1. negative
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4 years ago

What happens when a car that weighs 300 lbs. driving at speeds of 80 mph collides with a bystander that weighs 180 lbs.

EleoNora [17]

Answer:

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Hope this helped you!

Explanation:

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4 years ago