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melisa1 [442]
3 years ago
8

What are three common fossil fuels?

Physics
2 answers:
Gekata [30.6K]3 years ago
7 0

Answer:

A. coal, oil, natural gas

Explanation:

this is because those three are related to fossil fuels.

Zielflug [23.3K]3 years ago
4 0

Answer:

A:Coal,Oil,Natural gas

Explanation:

that pfp tho

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Which term describes the number of protons in one atom of an element
anyanavicka [17]
Atomic Number would be what you are looking for 

6 0
4 years ago
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A 74-kg boy is surfing and catches a wave which gives him an initial speed of 1.6 m/s. He then drops through a height of 1.56 m,
Reptile [31]

Answer:

Work done, W = 1.44 kJ

Explanation:

Given that,

Mass of boy, m = 74 kg

Initial speed of boy, u = 1.6 m/s

The boy then drops through a height of 1.56 m

Final speed of boy, v = 8.5 m/s

To find,

Non-conservative work was done on the boy.

Solution,

The work done by the non conservative forces is equal to the sum of total change in kinetic energy and total change in potential energy.

W=\dfrac{1}{2}m(v^2-u^2)+(0-mgh)

W=\dfrac{1}{2}m(v^2-u^2)-mgh

W=\dfrac{1}{2}\times 74\times (8.5^2-1.6^2)-74\times 9.8\times 1.56

W = 1447.21 Joules

or

W = 1.44 kJ

Therefore, the non conservative work done on the boy is 1.44 kJ.

4 0
3 years ago
Draw a picture of an atom.include protons,neutrons, and electrons.
gogolik [260]
Hey, unfortunately it’s impossible for me to draw one for you here, but you should be able to draw it yourself pretty easily!

Answer:


An atom is built with a combination of three distinct particles: electrons, protons, and neutrons. Each atom has a center nucleus, where the protons and neutrons are densely packed together. Surrounding the nucleus are a group of orbiting electrons. And here is a picture that may assist your further :

Hope this helps
6 0
4 years ago
What is happening to the velocity of an object if it has a negative acceleration?
oksano4ka [1.4K]

Answer:

<h3>According to our principle, when an object is slowing down, the acceleration is in the opposite direction as the velocity. Thus, this object has a negative acceleration. In Example D,<u> the object is moving in the negative direction</u> (i.e., has a negative velocity) and is speeding up.</h3>

Explanation:

So it would be decreasing if its moving towards the negative!

3 0
3 years ago
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How did Newton use creativity and logic in his approach to investigating light?
ryzh [129]
He used the quantum mechanic theory to approach light by describing relativity and perspective.
3 0
3 years ago
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