A straight line with a negative slope on a velocity-time graph indicates which of the following? 1. constant velocity away from the reference
2. no movement
3. constant acceleration away from the reference
4. constant acceleration toward the reference

Assume that a person skiing high in the mountains at an altitude of h = 15100 ft takes in the same volume of air with each breath as she does while walking at sea level. determine the ratio of the mass of oxygen inhaled for each breath at this high altitude compared to that at sea level. assume that the air composition (i.e. % of air that is oxygen) is the same at sea level as it is at 15100 ft.

Examples of states of consciousness include a. daydreaming b. dreaming during sleep c. hypnosis d. all of the above

Which of the following is a true statement about the acceleration ~a of the pendulum bob ~a is equal to the acceleration due to gravity. ~a is perpendicular to the bob’s trajectory. ~a is equal to the instantaneous rate of change in velocity. ~a is tangent to the bob’s trajectory.