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zaharov [31]
3 years ago
9

Which of these factors make hydrogen fuel cells a better option than burning fossil fuels? A.Hydrogen fuel cells have a higher e

nergy efficiency. B.Hydrogen fuel cells create less pollution. C.Burning fossil fuels relies on outdated devices and technology. D.Hydrogen is the most abundant element in the universe. E.Hydrogen fuel cells are more expensive than fossil fuels.
Physics
1 answer:
Pavel [41]3 years ago
3 0

Answer: i think it is B

Explanation:

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71.6 <span>°F</span>
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A

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A small charged sphere is attached to a thread and placed in an electric field. The other end of the thread is anchored so that
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Answer:

E = 9.66\times 10^{-6} N/C

direction is Horizontal

Explanation:

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F = qE

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4 years ago
This is “Fusion Reactions”.<br> Please answer number 8. Thank you.
Angelina_Jolie [31]

Answer:

²₁H + ³₂He —> ⁴₂He + ¹₁H

Explanation:

From the question given above,

²₁H + ³₂He —> __ + ¹₁H

Let ⁿₐX be the unknown.

Thus the equation becomes:

²₁H + ³₂He —> ⁿₐX + ¹₁H

We shall determine, n, a and X. This can be obtained as follow:

For n:

2 + 3 = n + 1

5 = n + 1

Collect like terms

n = 5 – 1

n = 4

For a:

1 + 2 = a + 1

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Collect like terms

a = 3 – 1

a = 2

For X:

n = 4

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Thus, the balanced equation is

²₁H + ³₂He —> ⁴₂He + ¹₁H

8 0
3 years ago
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professor190 [17]

Answer:

sorry i throght i had the answer

Explanation:

4 0
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