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iragen [17]
2 years ago
12

Write down the boiling point and freezing point of mercury an alcohol​

Physics
1 answer:
nekit [7.7K]2 years ago
8 0
Mercury has a high boiling point of 357 degrees C.
Mercury has a freezing point of −39 degrees C.
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3 0
3 years ago
A Ferris wheel on a California pier is 27 m high and rotates once every 32 seconds in the counterclockwise direction. When the w
Leto [7]

A) 140 degrees

First of all, we need to find the angular velocity of the Ferris wheel. We know that its period is

T = 32 s

So the angular velocity is

\omega=\frac{2\pi}{T}=\frac{2\pi}{32 s}=0.20 rad/s

Assuming the wheel is moving at constant angular velocity, we can now calculate the angular displacement with respect to the initial position:

\theta= \omega t

and substituting t = 75 seconds, we find

\theta= (0.20 rad/s)(75 s)=15 rad

In degrees, it is

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The tangential speed, v, of a point at the egde of the wheel is given by

v=\omega r

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\omega=0.20 rad/s

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Substituting into the equation, we find

v=(0.20 rad/s)(13.5 m)=2.7 m/s

6 0
3 years ago
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