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finlep [7]
3 years ago
5

What are two situational examples of unbalanced forces?

Physics
1 answer:
polet [3.4K]3 years ago
4 0

An example of a balanced force is two cards leaning against each other and not falling over, or two football players blocking each other but neither overpowering the other. An example of an unbalanced force is two cards leaning on each other then falling over, or two football players blocking each other, then one tackles the other.

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__________ carries carcinogens into the lungs
larisa [96]
Tobacco smoking is an unhealthy habit which can cause cancer due to the presence of more than 5000 chemicals, some of which are carcinogens (a chemical that causes cancer). It is the smoke itself, that carries carcinogens to the lungs and can eventually lead to the development of diseases such as lung cancer. 
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3 years ago
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g A beam of light incident on a smooth flat mirror at an angle of 25o relative to the surface normal of the mirror. What is the
WINSTONCH [101]

To solve this problem we will resort to the concept of angle of incidence and refraction.

Since it is a reflection on a mirror, the angle provided for refraction will be equal to that of the incidence, that is, 25 °

The angle of reflation is always perpendicular to the surface so it is necessary to find the angle with respect to it.

\theta = 90-25

\theta = 65\°

Therefore the angle of the reflected beam of light made with the surface normal is 65°

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3 years ago
A projectile is launched upward at an angle of 70⁰ from the horizontal and strikes the ground a certain distance down range. For
OLga [1]

Answer:20°

Explanation:

Recall

Range R of a projectile is given by U^2sin2A/g

We're U = velocity,A= angle of projection and g is acceleration due to gravity

From the question the range R are the same

Hence R1=R2

U1^2sin2A/g=U2^2sin2B/g

But U1=U2 and g=g

Hence sin2A=sin 2B

Sin 2*70= sin2*B

0.6427=sin2B

B=sin inverse(0.6427)=40/2=20°

7 0
3 years ago
Two rock climbers, bill and karen, use safety ropes of similar length. karen's rope is more elastic, called a dynamic rope by cl
Oliga [24]
You never gave us an answer, so therefore, we can't answer this question.
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3 years ago
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Explain why astronomers divide the sun into different layers.
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cause why not.

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