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Elena-2011 [213]
3 years ago
5

What forms when air masses with different temperatures meet?

Physics
2 answers:
iVinArrow [24]3 years ago
8 0

Answer:

fronts

Explanation:

WARRIOR [948]3 years ago
7 0
Clouds and fog and it may rain or snow
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a/ Compute the quantity of heat released by 25.0 g of steam initially at 100.0oC, when it is cooled to 34.0°C and by 25.0 g of w
Svetach [21]

Answer:

When put into steam

Explanation:

When a certain amount of steam at boiling temperature condenses (turning into water), the amount of heat released is

Q_1 = m\lambda_v

where in this case

m = 25.0 g = 0.025 kg is the mass of steam at 100.0°C

\lambda_v=2.256\cdot 10^6 J/kg is the latent heat of vaporization of water

So,

Q_1=(0.025)(2.256\cdot 10^6)=56400 J

Instead, the amount of heat released when the water at 100.0°C is cooled down to 34.0°C is given by

Q_2=mC\Delta T

where

m = 25.0 g = 0.025 kg is the mass of water

C=4.19\cdot 10^4 J/kg K is the specific heat of water

\Delta T=100-34=66^{\circ}C is the change in temperature

Therefore,

Q_2=(0.025)(4.19\cdot 10^3)(66)=6913 J

Since Q_1>Q_2, we can say that your hand will burn more in the first case.

5 0
3 years ago
Fronts are termed by the temperature of the air mass that overtakes another air mass. A. True B. False
Vikki [24]
A. True
if cold air is replacing warm air it is a cold front and vice versa.
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All of the following statements about protons are true except?
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C. protons dont circle the nucleus of an atom
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Which of these statements is false?
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The chart shows the times and accelerations for three drivers.
aliina [53]

The lists from greatest to lowest change in velocity.Dustin → Diego → Kira. Option A is correct.

<h3 /><h3>What is acceleration?</h3>

The rate of change of velocity with respect to time is known as acceleration. According to Newton's second law, the eventual effect of all forces applied to a body is its acceleration.

The acceleration is obtained one by one from the given data as the ratio of the velocity to the time.

For the acceleration of each, you can refer to the excel table attached below.

The velocity changes are listed from largest to least. Dustin and Diego Kira.

Hence, option A is the right answer.

To learn more about acceleration, refer to the link;

brainly.com/question/2437624

#SPJ1

6 0
2 years ago
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