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krek1111 [17]
4 years ago
13

This diagram shows two different forces acting on a skateboarder. The

Physics
1 answer:
ludmilkaskok [199]4 years ago
7 0

Answer:

B

Explanation:

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Harrison discovered two objects in space with the help of his telescope. He noted down the characteristics of the objects in the
spayn [35]
Object #1 is very large; it has rings and many moons.
It's most likely the outer planet Saturn.

Object #2 is very small; it has no rings and a few moons but not many.
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(3rd choice)
5 0
3 years ago
If a car is speeding down a road at 40 miles/hour (mph), how long is the stopping distance d40 compared to the stopping distance
tia_tia [17]
Assume that the deceleration due to braking is a ft/s².

Note that
40 mph = (40/60)*88 = 58.667 ft/s
25 mph = (25/60)*88 = 36.667 ft/s

The final velocity is zero when the car stops, therefore
v² - 2ad = 0, or d = v²/(2a)
where
v = initial speed
a = deceleration
d = stopping distance.

The stopping distance, d₄₀, at 40 mph is
d₄₀ = 58.667²/(2a)
The stopping distance, d₂₅, at 25 mph is
d₂₅ = 36.667²/(2a)

Therefore
d₄₀/d₂₅ = 58.667²/(2a) ÷ 36.667²/(2a)
           = (58.667/36.667)²
           = 2.56

Answer:
The stopping distance at 40 mph is 2.56 times the stopping distance at 25 mph.
8 0
3 years ago
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When magma flows on the surface on the surface, it is already called lava<br><br>TRUE OR FALSE​
castortr0y [4]

Answer:

True

Explanation:

I guess you made a mistake on question.

but I understood what you wanted to say.

Hope this helps... :)

6 0
3 years ago
A 1kg pool ball travels to the right at 2m/s and hits another stopped pool ball bounces back to the left at 1m/s what is the vel
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Ptotal=Ptotal —> m1v1+m2v2=m1v1’+m2v2’ —> (1kg)(2m/s)+(1kg)(0m/s)=(1kg)(-1m/s)+(1kg)(v2’) —> v2’=3m/s

answer: v=3m/s
5 0
3 years ago
What are the effects of noise?​
slega [8]

Answer:

Noise making has led to loss on hearing.

Explanation:

Supposing you like engaging in parties because of the noise of the sound system it can cause loss on hearing if continued for long

6 0
4 years ago
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