3 years ago

If the sun is a big ball of fire why can't we make our own sun with a big ball of fire

Physics

1 answer:

poizon [28]3 years ago

4 0

No because we don’t have enough chemicals to keep it fueled

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Of all of the types of forest biomes, tropical rain forests contain the most biodiversity, even though they do not have the most

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False. They do tend to have fertile soil do to the animal fecal matter.

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4 years ago

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The treasure map gives the following directions to the buried treasure

iren2701 [21]

Answer:

North

South

East

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Explanation:

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3 years ago

In a crash test, a truck with mass 2100 kg traveling at 22 m/s smashes head-on into a concrete wall without rebounding. The fron

-BARSIC- [3]

Answer:

a) 11 m/s

b) 0.0564 s

Explanation:

Given:

m = 2100 kg

vi = 22 ..... m/s before collision

vf = 0 ......after collision to stop

Δs = 0.62 distance traveled after collision .. crumpling of truck

Part a

$V_{avg} = \frac{vi- vf}{2}\\\\V_{avg} = \frac{22- 0}{2}\\\\ V_{avg} = 11 m/s$

Part b

$vf = vi + a*t\\vf^2 = vi^2 + 2*a*s\\\\0 = 22 + a*t\\t = -22 /a\\\\0 = 484 +2*a*(0.62)\\a = - 390.3232 m/s^2\\\\t = -22/(-390.3232)\\\\t = 0.0564 s$

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4 years ago

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A student on an amusement park ride moves in a circular path with a radius of 3.5 meters once every 8.9 seconds. What is the ave

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Distance traveled by him = circumference of that circular path = 2πr = 2π(3.5)
= 7π = 7×3.14 = 21.98 m
time = 8.9 s [ Given ]

Now, Average speed = distance / time
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s = 2.46 m/s

Hope this helps!

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3 years ago

What distance does electromagnetic radiation travel in 55.0 μs ?

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Electromagnetic radiation is an energy that is known as light. so electromagnetic radiation will have the same speed as the speed of light which is 3 x 10^8 m/s. so the distance it travel at 55 x 10^-6 s is:
D = ( 3 x 10^8 m/s ) ( 55 x 10^-6 s )
D = 16500 m

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3 years ago