Recent content by Mohammed Alqadhi

Does Physics need Philosophy?

Actually, the experiment was two charged balloons brought to stick on each other after hanging them over a rod using two strings with the same length, and they also brought to be in an equilibrium condition, in which we found the electric forces using Newton laws. But, when I wanted to measure...

According to Coulomb's law, the electric force between two, equal in magnitude and opposite in direction, charges depends on the distance between them, and as they get close to each other, the force increases and the distance decreases. At the position when they get stuck with each other, the...

This helps a little, but I am still confused!

We get the volume and the distance, if I am correct about it what's the formula that gives us the work done, so we can find the amount of gasoline by using Q=mLc? ??

I understand this, but how is that related?

I may not deliver my question right or you may not got it. Anyway I did the math and it get out right, but I am asking that the work applied to the refrigerator to extract the heat from the cold staff should not be equal or more than the heat extracted?

My reasoning to that is it does not violate the 1st law because the heat Qh that will be rejected will be bigger than the extracted Qc. what I wondering is how 230J of work results in 346J of heat? According to the conservation of energy, 230J of work will be converted,If so, to 230J of heat or...

If a Carnot refrigerator requires a work input of only 230 J to extract 346 J of heat from the cold reservoir. Doesn’t this discrepancy imply a violation of the law of conservation of energy?

Ok, that means heat will be flowing out of the system. What would be If we consider it as a real gas?

A gas in a cylinder with constant pressure, the gas cooled down and its internal energy decreased as well as its volume. The heat Q will be flowing into the gas or out of the gas? My try for the solution: As the volume decrease the work done by the gas will be negative. The gas cooled down, so...