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djverab [1.8K]
4 years ago
10

What is the correct definition of pressure?

Physics
2 answers:
almond37 [142]4 years ago
8 0

Answer:

C. force per unit area

Explanation:

Pressure is defined to be the amount of force exerted per area.

P=F/A

This definition also means that the units of pressure are newtons per square meter

Levart [38]4 years ago
5 0

Answer:

C

Explanation:

because it's not a volume is mass

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egoroff_w [7]
B is the correct answer since acid corrode on metals such as carbon, steel, zinc and such.
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4 years ago
Describe the valence electrons in nitrogen and how it could bond to other atoms?
Gekata [30.6K]

Answer:

Each nitrogen molecule consists of two atoms of nitrogen that are bonded by a triple covalent bond. This is because each nitrogen atom has 5 valence electrons. Each atom can complete its octet by sharing three electrons.

I hope this helps!

4 0
3 years ago
What is the definition of pe
Reika [66]
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8 0
3 years ago
Which of the following statements is/are true? Check all that apply. Check all that apply. The total mechanical energy of a syst
Taya2010 [7]

Answer:

1) True, 2) True, 3) False, 4) False, 5) False

Explanation:

1) True. Dissipative energy cannot be recovered, in general it is a form of heat

2) True. The dissipation can be by radiation, heat

3) False. Mechanical energy is divided into K and U but not in equal parts

4) False. When there are dissipative interactions, part of the mechanical energy is set in the form of heat, so its value decreases

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8 0
3 years ago
A power station burns 75 kilograms of coal per second. Each kg of coal contains 27 million joules of energy.
Kaylis [27]

Answer:

Explanation:

a )

one kg of coal gives energy of 27 x 10⁶ J

75 kg of coal gives energy of 27 x 10⁶ x 75 J

So rate which energy is coming out of coal per second

= 27 x 10⁶ x 75 J

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2025 million watts .

b ) energy output = 800 million watts

efficiency = (800 / 2025) x 100

= 39.5 % .

3 0
3 years ago
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