3 years ago

Why is the sun regarded as a big thermonuclear furnace? plz tell

Physics

1 answer:

otez555 [7]3 years ago

5 0

Answer:

hope this answers will help you

Explanation:

If you find it appropriate then plz mark as brainliest

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Two objects are raised off the ground and one of them is three times as high as the other one. How do their potential energy com

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The potential energy of any object depends on its mass as well as its height off the ground.

Potential energy = mass x gravity x height.

We don't have enough information to compare the potential energies of these two objects because we don't know their masses.

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3 years ago

ASAP

Yakvenalex [24]

Answer:

675 KM

Explanation:

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2 years ago

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A 2 200-kg pile driver is used to drive a steel I-beam into the ground. The pile driver falls 4.20 m before coming into contact

Kisachek [45]

Answer:

669042 N upward

Explanation:

$W_g$ = Work done by gravity on pile driver

$W_b$ = Work done by beam

u = Initial velocity

v = Final velocity

m = Mass of pile driver = 2200 kg

g = Acceleration due to gravity = 9.81 m/s²

h = Height the pile driver falls = 4.2 m

d = Bend in beam = 14 cm

Total work done = Change in Kinetic energy

$W_g+W_b=\frac{1}{2}m(v^2-u^2)\\\Rightarrow mg(h+d)+Fd=0\\\Rightarrow F=-\frac{mg(h+d)}{d}\\\Rightarrow F=-\frac{2200\times 9.81(4.2+0.14)}{0.14}\\\Rightarrow F=-669042\ N$

The force the beam exerts on the pile driver while the pile driver is brought to rest is 669042 N upward

8 0

3 years ago

Why is the sun regarded as a big thermonuclear furnace? plz tell​

Why is the sun regarded as a big thermonuclear furnace? plz tell