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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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Define light yearend explain how and why light years are used to measure distances in the universe
yan [13]
Light years are the distance light can travel in a full year. They are used because there are really big distances in the universe that are easier to measure with a really large form of measurement (light years).
3 0
3 years ago
A fat person weighing 80 Kg falls on a concrete floor from 2m. If whole of the mechanical energy is converted into heat energy,
sasho [114]

Answer:

The heat produced is 1568 J

Explanation:

The given parameters are;

The mass of the person, m = 80 kg

The height from which the person falls, h = 2 m

Mechanical Energy, ME = Potential Energy, PE + Kinetic Energy, KE

At the height, from where the person falls, the initial velocity of the person = 0 m/s

Therefore;

The initial kinetic energy, K.E. = 1/2·m·v² = 1/2 × 80 kg × (0 m/s)² = 0 J

From which we have;

The Mechanical Energy, M.E. = The initial Potential Energy, P.E. + 0 J

∴ The Mechanical Energy, M.E. = The initial Potential Energy, P.E.

The initial Potential Energy, P.E. = m·g·h

Where;

m = The mass of the person

g = The acceleration due to gravity ≈ 9.8 m/s²

∴ The initial Potential Energy, P.E. = 80 kg × 9.8 m/s² × 2 m = 1568 J

The Mechanical Energy, M.E. = The initial Potential Energy, P.E. = 1568 J

The whole mechanical energy is converted into heat energy, therefore, we have;

The Mechanical Energy, M.E. = The heat energy = 1568 J

The heat produced = The heat energy = 1568 J.

4 0
2 years ago
A sailboat is traveling across the ocean with a speed of 4 m/s when large gusts of wind pick up that starts to accelerate the sa
MatroZZZ [7]
Initial velocity, u = 4 m/s

acceleration due to gusts of wind = 3 m/s^2

time, t = 1 min = 60 s

Let distance travelled = S

From equation of motion,

S = ut +  \frac{1}{2} a {t}^{2}  \\  \\ S = 4 \times 60 +   \frac{1}{2}  \times 3 \times  {60}^{2}  \\  \\ S = 240 + 5400 \\  \\ S = 5640 \: m

Thus, the boat would have traveled 5640m after gusts picked up.
4 0
3 years ago
Read 2 more answers
Which factors affect the gravitational force between objects? Check all that apply.
drek231 [11]

Explanation:

distance between both objects and masses of the objects

4 0
3 years ago
Read 2 more answers
The symbol used for magnetic field is:
alina1380 [7]
The letter "B" is used for magnetic field
5 0
3 years ago
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