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3 years ago

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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Does the Digestive System deconstruct both mechanically and<br> chemically?

SIZIF [17.4K]

Answer:

Chemically

Explanation:

Your stomach acid would break down food and theYour stomach acid would break down food and that would be chemical.

7 0

3 years ago

A perfectly elastic collision occurs between a 15.0-kg mass traveling at 3.50 m/s and a 9.00-kg mass traveling at 2.35 m/s. if t

BaLLatris [955]

Momentum is conserved in a collision. Momentum is mass*velocity, so you can find your answer by calculating initial and final momentums and setting them equal to each other.

15kg * 3.50 m/s + 9kg * 2.35 m/s = 73.65 kg m/s

73.65 = 9 * 2.8 + 15x

solve for x
x= 3.23

The final velocity is 3.23 m/s

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3 years ago

A gardener mows a lawn with an old-fashioned push mower. The handle of the mower makes an angle of 320 with the surface of the l

Virty [35]

Answer:

N = 337.96 N

Explanation:

∅ = 32º

F = 249 N

m = 21 Kg

N = ?

We can apply:

∑ F = 0 (↑)

- Fy - W + N = 0 ⇒ N = Fy + W

⇒ F*Sin ∅ + m*g = N

⇒ N = (249 N*Sin32º) + (21 Kg*9.81 m/s²)

⇒ N = 337.96 N (↑)

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3 years ago

How much work must be done to bring three electrons from a great distance apart to 5.0×10^−10 m from one another (at the corners

Inessa05 [86]

Answer:

1.38 x 10^-18 J

Explanation:

q = - 1.6 x 10^-19 C

d = 5 x 10^-10 m

the potential energy of the system gives the value of work done

The formula for the potential energy is given by

$U =\frac{Kq_{1}q_{2}}{d}$

So, the total potential energy of teh system is

$U =\frac{Kq_{1}q_{2}}{d}+\frac{Kq_{2}q_{3}}{d}+\frac{Kq_{1}q_{3}}{d}$

As all the charges are same and the distance between the two charges is same so the total potential energy becomes

$U =3\times \frac{Kq^{2}}{d}$

K = 9 x 10^9 Nm^2/C^2

By substituting the values

$U =3\times \frac{9\times 10^{9}\times \ 1.6 \times 1.6 \times 10^{-38}}{5\times 10^{-10}}$

U = 1.38 x 10^-18 J

6 0

3 years ago

Its ____ makes Sirius the brightest star in the night sky.

grigory [225]

With its apparent magnitude

7 0

3 years ago

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