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HNQ
2:20 AM
5
Q: How do we calculate energy of food?

totalMongotHere is the problem, according to me: In a classic hamburger, according to my internet research, approximately 906 kJ are contained. Now take a car of 1 000 kilograms, and push it to 30 m/s. It has a certain kinetic energy, which is: 1 000 * 30² = 900 kJ So does it mean that the work (in a phy...

 
 
2 hours later…
HNQ
4:40 AM
1
Q: Heat reduction based on compression

johnny 5So I was thinking about air conditioner today and how we run air across compressed freon to cool down air but why do we need freon at all why not store just compressed air. My guess is because its inefficient. My question given a 1 cubic meter tank of air, if the room temperature at 1 atmospher...

 

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