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Alla [95]
3 years ago
9

Physics.... how far away was the lightning bolt in meters

Physics
1 answer:
likoan [24]3 years ago
8 0
To figure this out we need to multiply the time it took for the boy to hear thunder (8 seconds) by the speed of sound in air (340 m/s)

340 x 8 = 2720

The lightning bolt was 2720.00 meters away.
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A food processor draws 8.47 A of current when connected to a potential difference of 110 V.
Andreyy89

Answer:

27.95[kW*min]

Explanation:

We must remember that the power can be determined by the product of the current by the voltage.

P=V*I

where:

P = power [W]

V = voltage [volt]

I = amperage [Amp]

Now replacing:

P=110*8.47\\P=931.7[W]

Now the energy consumed can be obtained mediate the multiplication of the power by the amount of time in operation, we must obtain an amount in Kw per hour [kW-min]

Energy = 931.7[kW]*30[days]*10[\frac{min}{1day} ]=279510[W*min]or 27.95[kW*min]

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3 years ago
5. It is the year 2085, and the world population has grown at an alarming rate. As a space explorer, you have been sent on a ter
shtirl [24]

Answer:

Answer:

It has sunlight, oxygen, water, and fertile soil.

Explanation:

Sunlight: provides plants (producers) with energy so that the ecosystem is sustainable. Also provides heat and warmth so the planet does not freeze.  

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Water: required for plant growth and sustainability of carbon-based life.

Fertile soil: a place where plants can grow and produce energy.

I will not write an entire description because your teacher may accuse you of plagiarism and use this topic as proof.

Explanation:

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The process of achieving fitness in the human body is almost instant and can occur overnight. True or False
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. A stationary mass explodes into two parts of mass 4 kg and 40 kg . If the K.E of larger mass is 100 J . The K.E of small mass
alisha [4.7K]

Answer:

10J

Explanation:

KE = (1/2)mv²

100J = (.5)(40kg)v²

v²=(100J)/(20kg)

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KE = 10J

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ipn [44]

Answer:

165 degrees F (high)

Explanation:

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