A liter of water is heated to 80 degrees. At that point, the heat is turned down but continues to add heat to the water. The burner is adding 50 calories of heat each minute to the water, but the temperature remains at 80 degrees. What must be happening?

Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.