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mario62 [17]
3 years ago
12

Ice that formed thousands of years ago is often found to contain tiny bubbles of gas. this gas came from __________. ice that fo

rmed thousands of years ago is often found to contain tiny bubbles of gas. this gas came from __________. the atmosphere tiny zooplankton that lived in the water before it froze water vapor released from melting ice tiny phytoplankton that lived in the water before it froze
Physics
1 answer:
motikmotik3 years ago
8 0
Atmosphere

Atmospheric gas from prehistoric eras is found trapped in glaciers in the form of bubbles. These gas bubbles are the basis of studying ice cores as they provide us with accurate estimates of the conditions of past climates. The bubbles allow us to determine the composition of atmospheric air, such as the carbon dioxide and methane concentrations, as well as allow us to determine air temperatures in the past.
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Convert 0.700 atm of pressure to its equivalent in millimeters of mercury.
inna [77]

Answer:

532 millimeters of mercury

Explanation:

In order to convert the pressure from atm to millimeters of mercury (mm Hg), we should remind the conversion factor between the two units:

1 atm = 760 mm Hg

Therefore, we can solve the problem by setting up the following proportion:

1 atm : 760 mmHg = 0.700 atm : x

Solving for x, we find

x=\frac{(760 mmHg)(0.700 atm)}{1 atm}=532 mmHg

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A soccer ball with a mass of 0.45 kg is rolling with a momentum of 9 kg*m/s, what is it's velocity?
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