3 years ago

Explain why the boiling point of a liquid varies with atmospheric pressure

1 answer:

5 0

The boiling point of water, or any liquid, varies according to the surrounding atmospheric pressure. A liquid boils, or begins turning to vapor, when its internal vapor pressure equals the atmospheric pressure.

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Photons have high energy.

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A rod of length L is pivoted about its left end and has a force F applied perpendicular to the other end. The force F is now rem

timurjin [86]

Answer:

$F' = 4F$

Explanation:

When force applied to the end of the rod in perpendicular direction then net torque on the rod is given as

$\tau = L F sin90$

$\tau = LF$

Now another force is applied at mid point of the rod at an angle of 30 degree with the rod

so new value of torque is given as

$\tau = \frac{L}{2}F' sin\theta$

$LF = \frac{L}{2}F' sin30$

$LF = \frac{F'L}{4}$

so we have

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A runner changing speed from 3 meters per second to 5 meters per second is an example of

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Answer:

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Acceleration is the change in velocity/speed per unit time

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1. The vertical columns on the periodic table are called groups or families because of their similar chemical behavior.

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3. The horizontal rows on the periodic table are called periods.

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A P E X

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