The graph below shows position versus time for a tennis player moving along a straight-line path. What is the tennis player’s average velocity (in m/s) over the following time intervals? (Indicate the direction with the signs of your answers.) (a)  0 to 1.00 s  [ans1] m/s   (b) 0 to 4.00 s [ans2] m/s   (c) 1.00 s to 5.00 s [ans3] m/s (d) 0 to 5.00 s [ans4] m/s

As pressure in the aorta rises due to atherosclerosis, more ventricular pressure is required to open the aortic valve.  

Which of the following is NOT a factor affecting stroke volume?

In the pulmonary circulation, the _____ carry blood from the lungs to the heart.

Stroke volume is always equal to end diastolic volume.  

For the ball ins #8a,   b) What is the ball’s maximum height?  Type in your answer here.

Which of the following would cause a decrease in blood pressure?  

Diastolic blood pressure (DBP) is an estimation of the pressure in the aorta during:  

The level of hormones in the blood can NOT be regulated by:

Parts (a), (b), and (c) of the figure below represent three graphs of the velocities of different objects moving in straight-line paths as functions of time. The possible accelerations of each object as functions of time are shown in parts (d), (e), and (f). Match each velocity vs. time graph with the acceleration vs. time graph that best describes the motion. a) the velocity vs time graph (a) matches the acceleration vs time graph [ans1] b) the velocity vs time graph (b) matches the acceleration vs time graph [ans2] c) the velocity vs time graph (c) matches the acceleration vs time graph [ans3]