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Elanso [62]
3 years ago
14

(blank) is the thermal energy that flows from one substance to another when the substances differ in temperature

Physics
2 answers:
Oduvanchick [21]3 years ago
5 0
The answer is heat I think
antiseptic1488 [7]3 years ago
5 0

Answer:

Heat

Explanation:

Heat is a form of energy, specifically thermal energy.

An important characteristic of heat is that it is an energy in transit, so it flows from one system to another when there is a difference in temperature  between them.

Heat will always flow from the system with a higher temperature to the system with a lower temperature, never the other way around.

Since heat is an energy in transit, it cannot be stored in a system, it can only be absorbed or transferred.

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A nuclear can hold 2 electrons
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2 years ago
Three equal point charges, each with charge 1.45 μCμC , are placed at the vertices of an equilateral triangle whose sides are of
LUCKY_DIMON [66]

Answer:

U = 80.91 J

Explanation:

In order to calculate the electric potential energy between the three charges you use the following formula:

U=k\frac{q_1q_2}{r_{1,2}}                  (1)

k: Coulomb's constant = 8.98*10^9Nm^2/C^2

q1: q2 charge

r1,2: distance between charges 1 and 2.

For the three charges you have:

U_T=k\frac{q_1q_2}{r_{1,2}}+k\frac{q_1q_3}{r_{1,3}}+k\frac{q_2q_3}{r_{2,3}}           (2)

You use the fact that q1=q2=q3=q and that the distance between charges are equal. Then, in the equation (2) you have:

q = 1.45μC = 1.45*10^-6C

r = 0.700mm = 0.700*10^-3m

U_T=3k\frac{q^2}{r}=3(8.98*10^9Nm^2/C^2)\frac{(1.45*10^{-6}C)}{0.700*10^{-3}m}\\\\U_T=80.91J

The electric potential energy between the three charges is 80.91 J

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3 years ago
What is the purpose of a kink in a thermometer?
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Answer:

A 'kink' in the glass tube which breaks the mercury as it contracts, storing the highest temperature reading. The glass tube is shaped like a lens to magnify the thin mercury thread. Shaking the thermometer resets the mercury back into the bulb.

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