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Phoenix [80]
3 years ago
12

6. A car moving in a straight line at constant speed:

Physics
1 answer:
ddd [48]3 years ago
8 0

Answer:

D. has no overall force acting on it.

Explanation:

Why?

Because in a straight line at the constant speed means the car moving in the same velocity, which is not acceleration neither deceleration, and it cannot be on a downhill slope. So the correct answer is

<h3>→ D. has no overall force acting on it.</h3>
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PLEASE HELP ME I NEED IT!!
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Answer:

d

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You are designing an optical fiber scope for directing light into a confined area. You want to keep light within the fiber. Base
shepuryov [24]

Answer:

Explanation:

 For entry of light into tube of unknown refractive index

sin ( 90 - 25 ) / sinr = μ , μ is the refractive index of the tube , r is angle of refraction in the medium of tube

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sin ( 90 - 25 ) / sin( 90 - C)  = μ

sin65 / cos C = μ

sinC = 1.33 / μ  , where 1.33 is the refractive index of body liquid.

From these equations

sin65 / cos C = 1.33 / sinC

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μ = 1.33 / sinC

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3 years ago
How much fuel dose it take to get a rocket to orbit the earth?
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allochka39001 [22]

Answer: #4

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3 years ago
To a good approximate, the only external force that does work on a cyclist moving on level ground is the force of air resistance
mart [117]

Answer:

a. 120 W

b. 28.8 N

Explanation:

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(b)

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v = 15 kmph = 4.166 m/s

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= 28.8 N

definition of terms

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