Answer:
D
Explanation:
Because of the Suns magntism the solar system has been created
Answer:
Explanation:
Given:
- Initial pressure of nitrogen,
- initial temperature,
- polytropic index,
- initial volume,
- work done in the process,
<u>For heat interaction during the polytropic process we have:</u>
<u>For ideal gas we have the Gas Law:</u>
<u>For work we have the relation:</u>
putting respective values
We know entropy change:
Answer:
25,000 grams = 25 kilograms
Explanation:
1 gram = .001 kilogram
Answer: Heat is produced
Explanation:
From the law of conservation of energy and mass, these cannot be created nor destroyed but can convert from one form to another. When fuel is burnt, heat is produced which changes into mechanical energy ( potential energy + kinetic energy). Thus, chemical energy of the fuel transforms to heat energy which transforms to mechanical energy. This shows that energy transformation has taken place.