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Fudgin [204]
2 years ago
13

What effects does using fossil fuels have on our planet

Physics
2 answers:
kenny6666 [7]2 years ago
3 0
The Damage Fossil Fuels<span> can do. However they are obtained, whether through traditional or new methods such as fracking, </span>burning fossil fuels<span> such as oil, coal and gas results in the production of carbon dioxide and other greenhouse gases, which cause global warming.</span>
garik1379 [7]2 years ago
3 0
However they are obtained, whether through traditional or new methods such as fracking, burning fossil fuels such as oil, coal and gas results in the production of carbon dioxide and other greenhouse gases, which cause global warming.
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A uniform-density 7 kg disk of radius 0.21 m is mounted on a nearly frictionless axle. Initially it is not spinning. A string is
GREYUIT [131]

Answer:

\omega = 22.67 rad/s

Explanation:

Here we can use energy conservation

As per energy conservation conditions we know that work done by external source is converted into kinetic energy of the disc

Now we have

W = \frac{1}{2}I\omega^2

now we know that work done is product of force and displacement

so here we have

W = F.d

W = (44 N)(0.9 m) = 39.6 J

now for moment of inertia of the disc we will have

I = \frac{1}{2}mR^2

I = \frac{1}{2}(7 kg)(0.21^2)

I = 0.154 kg m^2

now from above equation we will have

39.6 = \frac{1}{2}(0.154)\omega^2

\omega = 22.67 rad/s

5 0
2 years ago
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Two blocks are the same size one block has a higher temperature than the other. Which describes the thermal energy of these bloc
shepuryov [24]
The block that has a higher temperature describes the thermal energy of these blocks. Thermal energy is a measure of internal energy - therefore, the block with the higher temperature has more internal energy than the block with the lower temperature, meaning it's thermal energy is greater. 
8 0
3 years ago
What is the mass of an atom that has 2 protons, 3 neutrons, and 2 electrons
marusya05 [52]
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3 years ago
the angular speed of an automobile engine is increased at a constant rate from 1300rev/min to 2000rev/min in 3s (a) what is its
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Answer:

please find attached pdf

Explanation:

Download pdf
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Zero, a hypothetical planet, has a mass of 5.8 x 1023 kg, a radius of 2.7 x 106 m, and no atmosphere. a 10 kg space probe is to
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