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Papessa [141]
4 years ago
7

In which equation of Newton’s second law is mass assumed to be constant?

Physics
1 answer:
Margarita [4]4 years ago
8 0

Answer:

Newton's second law of motion is F = ma, or force is equal to mass times acceleration. Learn how to use the formula to calculate acceleration.

Explanation:

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What happens to the pressure of a gas when the volume of its container is increased at constant temperature?
zepelin [54]
<h2><em><u>Pressure </u></em><em><u>decreases </u></em><em>as </em><em>volume </em><em>increases </em><em>at </em><em>constant </em><em>temperature</em><em>.</em></h2>

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3 0
3 years ago
What does the thermosphere and stratmosphere have in common
Darya [45]

these include the troposphere (0 to 16 km), stratosphere (16 to 50 km), mesosphere (50 to 80km) and thermosphere (80 to 640km). The boundaries between these four layers are defined by abrupt changes in temperature, and include respectively the tropopause, stratopause and mesopause.

5 0
4 years ago
The householder installs cavity wall insulation. What would happen to the time taken for the temperature to fall between points
scoundrel [369]

Answer:

the answers the correct one is: the time increases

Explanation:

When an insulating material is placed in the cavity of a wall the thermal conductivity of the system increases, therefore the temperature changes take longer.

             P= dQ / dt = K A dT / dx

when placing insulation the value of k is less

When reviewing the answers the correct one is: the time increases

5 0
4 years ago
For sprinters running at 12 m/s around a curved track of radius 26 m, how much greater (as a percentage) is the average total fo
Snezhnost [94]

Answer:

114.86%

Explanation:

In both cases, there is a vertical force equal to the sprinter's weight:

Fy = mg

When running in a circle, there is an additional centripetal force:

Fx = mv²/r

The net force is found with Pythagorean theorem:

F² = Fx² + Fy²

F² = (mv²/r)² + (mg)²

F² = m² ((v²/r)² + g²)

F = m √((v²/r)² + g²)

Compared to just the vertical force:

F / Fy

m √((v²/r)² + g²) / mg

√((v²/r)² + g²) / g

Given v = 12 m/s, r = 26 m, and g = 9.8 m/s²:

√((12²/26)² + 9.8²) / 9.8

1.1486

The force is about 114.86% greater (round as needed).

5 0
3 years ago
Thinking and remembering is controlled by
kakasveta [241]
Can you elaborate more on the question please
3 0
3 years ago
Read 2 more answers
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