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son4ous [18]
3 years ago
14

In two or more sentences describe the impact of fossil fuel combustion on the global carbon cycle. In three sentences or less ex

plain why predicting our future oil supply is controversial and involves some uncertainty. State at least one reason for and one reason against both offshore drilling of oil and drilling for oil in the Arctic National Wildlife Refuge. Compose a complete paragraph. Describe in one complete paragraph how oil and natural gas compare in terms of predicted supply and carbon dioxide emissions.
Physics
2 answers:
Nuetrik [128]3 years ago
8 0
For many solids<span> dissolved in liquid water, the </span>solubility increases<span> with </span>temperature<span>. The </span>increase<span> in kinetic energy that comes with </span>higher temperatures<span> allows the solvent molecules to more effectively break apart the solute molecules that are held together by intermolecular attractions.</span>
ArbitrLikvidat [17]3 years ago
5 0

Answer:

They increase the amount of greenhouse gases, causing global warming.

Explanation:

The combustion of fossil fuels comes with a number of problems. First, there is an increase in the carbon footprint. This is basically the increase in the amount of atmospheric carbon dioxide due to human activities like burning fossil fuels.  Fossil fuels include natural gas, oil, petroleum, and coal.

These release greenhouse gases, such as methane. These form very reactive radicals that damage the ozone layer resulting in strong and destructive UV rays reaching the earth. In addition, global warming takes place, with an increase in temperature, melting of ice and rising sea levels.

The drilling of oil offshore disturbs the oceanic ecosystem. It pollutes the oceans.

At the same time, it can be an advantage as forests do not have to be destroyed.

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A planet is orbiting a nearby star. Suppose that the star’s gravity increases over time. What effect will this increase most lik
zhenek [66]
The planet would stay in the same orbit but start revolving faster.
(Its year would get shorter.)
7 0
4 years ago
Please show work with the answer and thank you
Alika [10]

Answer:

its your homework

Explanation:

you aren't getting any free answers out of me because it sounds like your trying to be smart your welcome

(Not smarter than me)

7 0
3 years ago
________ describes the unique sound quality or tone color of a sound.
mylen [45]
Where are the answers
5 0
3 years ago
An object moving due to gravity can be described by the motion equation y=y0+v0t−12gt2, where t is time, y is the height at tha
LenaWriter [7]

Answer:

t=6.4534 s

Explanation:

This is an exercise where you need to use the concepts of <em>free fall objects</em>

Our <u>knowable variables</u> are initial high, initial velocity and the acceleration due to gravity:

y_{0}=75m

v_{oy} =20m/s

g=9.8 m/s^{2}

At the end of the motion, the <u><em>rock hits the ground</em></u> making the final high y=0m

y=y_{o}+v_{oy}*t-\frac{1}{2}gt^{2}

If we <em>evaluate the equation</em>:

0=75m+(20m/s)t-\frac{1}{2}(9.8m/s^{2})t^{2}

This is a classic form of <u><em>Quadratic Formula</em></u>, we can solve it using:

t=\frac{-b ± \sqrt{b^{2}-4ac } }{2a}

a=-4.9\\b=20\\c=75

t=\frac{-(20) + \sqrt{(20)^{2}-4(-4.9)(75) } }{2(-4.9)}=-2.37s

t=\frac{-(20) - \sqrt{(20)^{2}-4(-4.9)(75) } }{2(-4.9)}=6.4534s

Since the <u><em>time can not be negative</em></u>, the <em>reasonable answer</em> is

t=6.4534s

8 0
3 years ago
A uniform plank of length 6.1 m and mass 33 kg rests horizontally on a scaffold, with 1.6 m of the plank hanging over one end of
salantis [7]

Answer:

Explanation:

consider the principle of moment

when a system is in equilibrium, the clockwise moment (torque) about the pivot is equal to the counterclockwise moment ( torque). Since the plank is uniform the weight of the plank act at the middle which = 6.1 m / 2 = 3.05 m

the distance that can support the weight of the man = d

mass of the man = 70

70 × d = 33 × ( 3.05 - 1.6)

d = 47.85 / 60 = 0.798 m, if the man work beyond this point he will fall.

8 0
3 years ago
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