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?

The “death throes” of stars are amongst the most complex phenomena in all of astronomy, and the “corpses” of stars amongst the most energetic and exotic objects in existence. beginning at the end of the core helium fusion stage in a star’s life, describe in detail the post-main sequence development of both (a) a 1.0 solar mass star, and (b) a 25.0 solar mass star. in what significant ways do they differ? what role does each of these types of stars play in the "star-gas-star" cycle and the evolution of chemical elements in our galaxy?

Which of the following is an example of units for speed

What are the applications of electromagnetic waves