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sweet-ann [11.9K]
3 years ago
11

Why are fossil fuel resources sometimes referred to as buried sunshine

Physics
2 answers:
vlada-n [284]3 years ago
8 0

Answer:

Because they are found deep in the Earth and the energy stored in them was obtained from the Sun long ago.

Explanation:

yKpoI14uk [10]3 years ago
5 0
From research I found that the <span>fossil fuel resources are sometimes referred to as "buried sunshine" because they make the earth warm. They are also found deep in the earth and the energy stored in them was obtained from the sun long ago, and that's because they also produce energy the same way the sun does.

Hope this is the answer you were looking for and that it helps. :)</span>
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A lion has a mass of 45 kg. Answer the following questions about it, using correct units. a. The lion runs at a speed of 14.2 m/
Eva8 [605]
A) The kinetic energy of an object is given by:
K= \frac{1}{2}mv^2
where m is the mass of the object, and v its speed. For the lion in our problem, m=45 kg and v=14.2 m/s, so its kinetic energy is
K= \frac{1}{2}mv^2= \frac{1}{2}(45 kg)(14.2 m/s)^2=4537 J

b) the increase in gravitational potential energy of the lion is given by:
\Delta U = mg \Delta h
where g is the gravitational acceleration, and \Delta h is the increase in altitude of the lion. In this problem, \Delta h=28 m, so the increase in gravitational potential energy is
\Delta U=mg \Delta h=(45 kg)(9.81 m/s^2)(28 m)=12361 J

c) When the fox reaches the top of the tree, its gravitational potential energy is
U=mgh=(1.8 kg)(9.81 m/s^2)(3.8 m)=67 J
As it jumps, its kinetic energy is
K= \frac{1}{2}mv^2= \frac{1}{2}(1.8 kg)(8.1 m/s)^2=59 J
So the total mechanical energy of the fox as it jumps is
E=U+K=67 J + 59 J =126 J
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3 years ago
How many nanoseconds are there in 1.90 yr ?<br> Express your answer using three significant figures.
shepuryov [24]

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Scorpion4ik [409]

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MrRa [10]

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