A car weighing 2,000 pounds sits at the top of a 50-foot hill. What is the potential energy of the car?

Which of the following occur when the ventilatory threshold is exceeded during exercise? 1. Metabolism becomes anaerobic. 2. Energy production increases. 3. Fatigue increases

a. 1 and 2 only b. 2 and 3 only c. 1 and 3 only d. 1, 2, and 3

As a safety consideration, patients who say they feel faint:

A) ?should put their head down between their knees B) should be asked to stand up C) should place on ice pack on the puncture site D) all of the above