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umka21 [38]
3 years ago
8

The thermal energy in a heat engine is used to move a piston. Which best describes why this is possible?

Physics
1 answer:
mestny [16]3 years ago
5 0
The increase in entropy is directly related to the increase in temperature.
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A 20 kg box rests on the ground. Round all answers to the hundredths, if necessary. What is the weight of the box?​
cricket20 [7]
  • Mass=m=20kg
  • Acceleration due to gravity=10m/s^2

Weight=Applied force

\\ \sf\longmapsto F=mg

\\ \sf\longmapsto F=20(10)

\\ \sf\longmapsto F=200N

5 0
3 years ago
Read 2 more answers
What is the full moon that occurs during the autumn equinox called?
zhannawk [14.2K]

Answer: Harvest Moon

Explanation:

But to most casual observers, the moon will appear fully illuminated in the night sky from Sunday through Tuesday. In the Northern Hemisphere, the full moon that appears closest to the fall equinox is traditionally referred to as the "Harvest Moon."

3 0
2 years ago
? energy that results from the position or shape of an object , Potential energy related to an objects ?
ivann1987 [24]

Answer:

gravitational potential energy

7 0
3 years ago
What does the number, or density, of field lines on a source charge indicate?
Harrizon [31]

Hello.

The answer: C. amount of charge on the source charge

The field lines all represent the movements of field charges.  The more crowded the field lines or the more density of electric field the higher is the magnitude of the source charge.

Have a  nice day.

6 0
3 years ago
Read 2 more answers
An ideal parallel - plate capacitor consists of two parallel plates of area A separated by a distance d. This capacitor is conne
Svetradugi [14.3K]

Answer:

The capacitance is cut in half.

Explanation:

The capacitance of a plate capacitor is directly proportional to the area A of the plates and inversely proportional to the distance between the plates d. So if the distance was doubled we should expect that the capacitance would be cut in half. That can be verified by the following equation that is used to compute the capacitance in such cases:

C = (\epsilon)*(A/d)

Where \epsilon is a constant that represents the characteristics for the insulator between the plates. A is the area of the plates and d is the distance between them. When we double d we have a new capacitance, given by:

C_new = (\epsilon)*(A/2d)

C_new = (1/2)*[(\epsilon)*(A/d)]

Since C = (\epsilon)*(A/d)] we have:

C_new = (1/2)*C

4 0
3 years ago
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