If a person's goal is to increase his or her overall fitness, which is the most important factor: the specific aerobic exercise a person does or the intensity of the exercise? Defend your response. Explain how one remains properly hydrated during exercise and why it is important.

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

Air is contained in a variable-load piston-cylinder device equipped with a paddle wheel. initially, air is at 400 kpa and 17°c. the paddle wheel is now turned by an external electric motor until 75 kj/kg of work has been transferred to air. during this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. calculate the required amount of heat transfer in kj/kg.

The velocity of a car traveling in a straight line increases from 0 meters/second to 30meters/second in 8 seconds. what is the average acceleration of the car?