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Africtionless piston-cylinder contains 50 l of saturated liquid r-134a. the piston has a mass and an area resulting in an applied pressure of 500 kpa on the refrigerant. the refrigerant is now heated until its temperature rises to 70∘c. calculate the work (in kj) done during this process.

Which lists the organs in the correct order as food passes from the mouth to anus?

Ajoint produces movement when its angle decreases. which type of movement is it?