3 years ago

Temperature is generally proportional to a substance's _______.

Physics

1 answer:

daser333 [38]3 years ago

6 0

rotational kinetic energy of it's particles

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the specific heat of water is 4.2 j/c. if it takes 31,500 joules to heat to warm 750 g of water, what was the temperature change

defon

The amount of heat needed to increase the temperature of a substance by $\Delta T$ is given by
$Q=mC_s \Delta T$
where
m is the mass of the substance
$C_s$ the specific heat capacity
$\Delta T$ the increase in temperature

In our problem, the mass of the water is m=750 g, the specific heat is $C_s = 4.2 J/g ^{\circ}C$ and the amount of heat supplied is $Q=31500 J$ , so if we re-arrange the previous formula we find the increase in temperature of the water:
$\Delta T= \frac{Q}{m C_s}= \frac{31500 J}{(750 g)(4.20 J/g^{\circ} C)}=10^{\circ}C$

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2 years ago

9.(7 +1) Line I 9.7 +9.1 Line 2 The expression was rewritten using the Distributive Property 9. (7 + 1) equals 9. 7 which equals

zhenek [66]

Answer:

Sorry

Explanation:

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2 years ago

If Shirley pushes one end of a desk to the right with a force of 12.0N and anfernee pushes the desk at the same time to the left

Marianna [84]

The net force does not depend on the mass.

We have 12N to the right, and 19N to the left.
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3 years ago

In 1993, the gold reserves in the United States were about 8.490 x 10^6

lorasvet [3.4K]

Mass of gold :-8.490×10⁶kg
Density=19300kg/m³

Volume?

Let's see

Volume:-

Mass/Density
8.49×10⁶/19300
0.000439×10⁶
439m³

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2 years ago

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Lina20 [59]

<span> this would be most affected Coriolis effect. </span>

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3 years ago

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