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Bogdan [553]
3 years ago
12

Why have fossil fuels become our primary energy resource

Physics
2 answers:
Komok [63]3 years ago
8 0

Answer: The fossil fuels are big part of the world today. But my i say get red of it you know but o will. so hope this helps good luck.

Explanation:

The United States gets 81% of its total energy from oil, coal, and natural gas, all of which are fossil fuels. We depend on those fuels to heat our homes, run our vehicles, power industry and manufacturing, and provide us with electricity. Eventually, the degree to which we depend on fossil fuels will have to decline as the planet’s known supplies diminish, the difficulty and cost of tapping remaining reserves increase, and the effect of their continued use on our planet grows more critical. But shifting to new energy sources will take time. In the meantime, how do we use fossil fuels in the most efficient and environmentally responsible way possible?

DerKrebs [107]3 years ago
6 0

Fossil fuels are not our primary source of energy that role plays the sun.

If you turn of the sun you would freeze to death after 1 month.

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5 0
3 years ago
Eric has a mass of 70 . He is standing on a scale in an elevator that is accelerating downward at 1.7 . What is the approximate
pychu [463]

Answer:

B)

Explanation:

The value the scale shows is the reaction force to the normal force (they are equal by Newton's 3rd Law) that the scale exerts on Eric.

The forces on Eric are his weight (downward) and this normal force (upward), so we can write the net force over him as (also using Newton's 2nd Law):

F=W-N=ma

which means

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and for our values this is:

N=mg-ma=(70kg)(9.8m/s^2-1.7m/s^2)=567N

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3 years ago
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ivann1987 [24]

Answer:

D

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