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ollegr [7]
1 year ago
15

The mercury thermometer operates on the principle of

Physics
1 answer:
Fynjy0 [20]1 year ago
3 0

The mercury thermometer operates on the principle of dilation.

<h3>What is the working principle of a mercury thermometer?</h3>

Like all liquids, mercury expands as it is heated, so it moves along the thermometer tube, determining the temperature. Its expansion rate is calibrated on the glass scale, expansion is linear and can be accurately calibrated.

Mercury allows it to be used in a thermometer by its liquid expansion fast enough to measure something so that it still maintains an accurate measurement.

See more about mercury thermometer at brainly.com/question/22237259

#SPJ12

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54000 kg*m/s

Explanation:

1800*30= 54000

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A man pushes his lawnmower with a velocity of +0.75 m/s relative to the ground. A girl rides by on her bike with a velocity of +
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B. +5.75 m/s

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When there are two bodies, a and b, whose velocities measured by a third observer (in this case, the ground) are V_a and V_b respectively, the relative velocity of B with respect to A is given by:

V_{ba}=V_b-V_a

Thus, the velocity of the girl relative to the lawnmower is:

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A - Crest,  B - amplitude,  C - wavelength,  D - trough

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Why is gravitational force and gravity not the same thing?
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Answer:

a). P=78.4W

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c.) It must be at the bottom

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The power output of the pum

W=F*d

F=m*g

m=p*V=1000kg/m^3*2.0x10^{-4}m^3}=0.2Kg

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W=78.4J

P=\frac{W}{t}=\frac{78.4J}{1s}=78.4W

b.

The pressure of difference the pum

ΔP=p*g*y'

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P=392kPa

c.

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