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aleksandr82 [10.1K]
2 years ago
12

The table below shows the level of carbon dioxide in the atmosphere for a period of 50 years.

Physics
1 answer:
yan [13]2 years ago
6 0

Answer: The level of CO2 has risen.

Explanation:

From the table shown, we can see that the quantity of CO₂ in the atmosphere has steadily risen since the year 1960 going from 317 CO₂PPM in that year to 390 CO₂PPM in 2010.

This is a cause for alarm because with so much carbon dioxide in the atmosphere, there will be an even greater greenhouse effect that will contribute to global warming.

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Two air track carts move along an air track towards each other. Cart A has a mass of 450 g and moves toward the right with a spe
ra1l [238]

Answer:

0.465 kgm/s

Explanation:

Given that

Mass of the cart A, m1 = 450 g

Speed of the cart A, v1 = 0.85 m/s

Mass of the cart B, m2 = 300 g

Speed of the cart B, v2 = 1.12 m/s

Now, using the law of conservation of momentum.

It is worthy of note that our cart B is moving in opposite directions to A

m1v1 + m2v2 =

(450 * 0.85) - (300 * 1.12) =

382.5 - 336 =

46.5 gm/s

If we convert to kg, we have

46.5 / 100 = 0.465 kgm/s

Thus, the total momentum of the system is 0.465 kgm/s

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3 years ago
What is needed for a complete circuit? a Charge flows along a complete conducting path b High Resistance c Wires connected to a
Ilia_Sergeevich [38]

Answer:

a Charge flows along a complete conducting path

Explanation:

6 0
2 years ago
If ti takes 50 seconds to lift 10 newtons of books to a height of 7 meters, calculate the power required.
Neporo4naja [7]
The answer is 1.4 newtons for sure.
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3 years ago
The Earth's crust is made of tectonic plates. These plates are constantly in motion. How are earthquakes related to the movement
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I'm pretty sure it's B because I studied this topic and I'm not right I'm sorry.

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Can anyone please tell me where these labels would go?
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The least potential energy would go at the very bottom of the track. the greatest kinetic energy would be on the upper half of the track and the least kinetic energy would be on the lower half of the track. please review this on google if you are not sure.
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