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Alekssandra [29.7K]
3 years ago
11

3. What is the relationship between the kinetic energy of molecules in an object and the object’s temperature? a. As the tempera

ture increases the kinetic energy of the molecules increases b. The kinetic energy always increase whether the temperature increases or decreases c. As the kinetic energy of the molecules decreases, the temperature increases d. The total kinetic energy of the molecules is not affected by a change in temperature
Physics
2 answers:
Novosadov [1.4K]3 years ago
5 0

Answer:

since temperature is the average kinetic energy of the molecules, so increasing temperature

Explanation:

evablogger [386]3 years ago
4 0

I think the answer A since temperature is the average kinetic energy of the molecules, so increasing temperature must increase kinetic energy

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Answer:

The solution(s) are in order with respect to the attachments

2.613\:\cdot10^5 Joules ; 5. Adding the same amount of heat to two different objects will produce the same increase in temperature ; 2. Same speed in both ; 2. A

Explanation:

Diagram 1 ( Liquid Nitrogen ) : So as you can see, we want our units in Joules here, and can therefore multiply the mass of gaseous nitrogen and the latent heat of liquid nitrogen, to cancel the units kg, and receive our solution - in terms of Joules. Let's do it.

q ( energy removed ) = mass of nitrogen * latent heat of liquid nitrogen,

q = 1.3 kg * 2.01 * 10⁵ J / kg = 1.3\:\cdot \:2.01\:\cdot \:\:10^5 = 10^5\cdot \:2.613 = 100000\cdot \:2.613 = 261300 Joules = 261.3 kiloJoules = 2.613 * 10⁵Joules is the energy that must be removed

Diagram 2 : The same amount of heat does not necessarily mean the same increase in temperature for two different objects. The increase in temperature depends on the specific heat capacity of the substance. Therefore your solution is 5 ) Adding the same amount of heat to two different objects will produce the same increase in temperature.

Diagram 3 : The temperatures in both glasses are the same, and hence the molecules have the same average speed. Therefore your solution is 2 ) Same speed in both.

Diagram 4 : Glass A has more water molecules, and hence has more thermal energy. Your solution is 2 ) A.

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Answer:

Explanation:

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2 years ago
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<u>Answer</u>

The combined displacement is 2km north


<u>Explanation</u>


Since displacement is a vector quantity, we take into account the direction.


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