3 years ago

You observe a liquid turning to gas at 135 degrees Celsius. You are observing the

Physics

1 answer:

Leokris [45]3 years ago

7 0

You are observing the boiling point

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It increases by a factor of 4.

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3 years ago

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70 POINTS and BRAINLIEST! Which segment represents freezing? E-D D-C C-B B-A

cluponka [151]

Answer:

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Explanation:

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3 years ago

Is the box moving at a constant speed? Explain how you know. What does this tell you about the kinetic energy of the system

mars1129 [50]

Answer:

The box is moved at constant speed, then the change in kinetic energy is zero.

Explanation:

Let suppose that box moves at constant speed, meaning that its kinetic energy ( $K$ ), measured in joules, is expressed by the following equation:

$K = \frac{1}{2}\cdot m\cdot v^{2}$ (1)

Where:

$m$ - Mass, measured in kilograms.

$v$ - Speed, measured in meters per second.

If the box moves at constant speed, then we notice that $v_{f}^{2}-v_{o}^{2} = 0$ , therefore, $\Delta K = 0$ . In a nutshell, if the box is moved at constant speed, then the change in kinetic energy is zero.

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3 years ago

An ideal spring obeys Hooke’s law, F~ = −k~x. A mass of 0.50 kilogram hung vertically from this spring stretches the spring 0.07

masha68 [24]

The spring constant is 66.7 N/m

Explanation:

First of all, we have to find the magnitude of the force acting on the spring. This is equal to the weight of the mass hanging on the spring, which is:

$F=mg$