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3 years ago

The ocean helps absorb: hydrogen carbon dioxide nitrogen sulfur dioxide

Physics

2 answers:

Romashka-Z-Leto [24]3 years ago

5 0

Carbon Dioxide (CO2), this leads to a greenhouse effect.

icang [17]3 years ago

3 0

Answer: Carbon dioxide

Explanation:

The ocean helps in the absorption of carbon dioxide as phytoplankton absorbs carbon dioxide and performs the process of photosynthesis.

This process releases oxygen and consumes carbon dioxide by the process of diffusion.

More than normal level of carbon dioxide in water has lead to ocean acidification which is not good for the aquatic animals.

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find the time taken, if the speed of a train increased from 72 km/hr to 90 km/hr for 234 km. leave your answer in seconds

Airida [17]

Answer:

Time taken = 10400 s

Explanation:

Given:

Initial speed of the train, $u=72\textrm{ km/h}=72\times \frac{5}{18}=20\textrm{ m/s}$

Final speed of the train, $v=90\textrm{ km/h}=90\times \frac{5}{18}=25\textrm{ m/s}$

Displacement of the train, $S=234\textrm{ km}=234\times 1000=234000\textrm{ m}$

Using Newton's equation of motion,

$v - u = at\\a=\frac{v-u}{t}$

Now, using Newton's equation of motion for displacement,

$v^{2}-u^{2}=2aS$

Now, plug in the value of $a=\frac{v-u}{t}$ in the above equation. This gives,

$v^{2}-u^{2}=2\times \frac{v-u}{t}\times S\\(v+u)(v-u)=\frac{2(v-u)S}{t}\\t=\frac{2(v-u)S}{(v+u)(v-u)}\\t=\frac{2S}{v+u}$

Now, plug in 234000 m for $S$ , 25 m/s for $v$ and 20 m/s for $u$ . Solve for $t$ .

$t=\frac{2S}{v+u}\\t=\frac{2\times 234000}{25+20}\\t=\frac{468000}{45}=10400\textrm{ s}$

Therefore, the time taken by the train is 10400 s.

3 0

3 years ago

Body of a 218 kg starta from rest and attains the velocity of 63 m/s in 9 second

Vanyuwa [196]

Answer:

567m

Explanation:

By using formula of velocity.

7 0

3 years ago

Which location, 23 degrees or 48 degrees would experience the same earthquake at stronger intensity?Explain why.

BaLLatris [955]

Answer:

48 degress

Explanation:

An earthquake causes many different intensities of shaking in the area of the epicenter where it occurs. So the intensity of an earthquake will vary depending on where you are. Sometimes earthquakes are referred to by the maximum intensity they produce. In the United States, we use the Modified Mercalli Scale. Earthquake intensity is a ranking based on the observed effects of an earthquake in each particular place. Therefore, each earthquake produces a range of intensity values, ranging from highest in the epicenter area to zero at a distance from the epicenter.

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3 years ago

Which of the following most directly shows how physics affects society?

Nataliya [291]

the answer is definitely A.

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3 years ago

How will the solubility of a gas solute change if the pressure above the solution is reduced?

Hoochie [10]

If the pressure above a solution containing a gas solute is reduced, the limit of the gas's solubility will decrease.

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3 years ago

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