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djverab [1.8K]
3 years ago
11

When is liquid is heated from 20 degree to 60 degree centigrade its density​

Physics
1 answer:
Anna35 [415]3 years ago
8 0

Answer:

°C = Density of water (g/cm3)

4° = 1.0000

20° = 0.9982

40° = 0.9922

60° = 0.9832

80° = 0.9718

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What is the area of the parallelogram?<br>square units​
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The area is the length times the height so A= bh ...?
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3 years ago
In the context of energy transfers with hot and cold reservoirs, the sign convention is that _______________.
Likurg_2 [28]

Answer:

B. QC > 0; QH < 0

Explanation:

Given that there are two reservoir of energy.

Sign convention for heat and work :

1.If the heat is adding to the system then it is taken as positive and if heat is going out from the system then it is taken as negative.

2. If the work is done on the system then it is taken as negative and if the work is done by the system then it is taken as positive.

From hot reservoir heat is going out that is why it is taken as negative

Q_H

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3 years ago
An ac power generator produces 73.37 a (rms) at 4623 v. the voltage is stepped up to 105,033 v by an ideal transformer, and the
evablogger [386]

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So we can write

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here

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5 0
3 years ago
Read 2 more answers
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