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Exam 3 Reg.pdf

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List – in order of occurrence – the three (3) steps of hemostasis.

Fill in the blanks for the blood’s pathway through the heart.   Vena cavae (both)  →   Right atrium   →  Tricuspid (AV) Valve   →     [BLANK-1]    →      [BLANK-2]    →     Pulmonary trunk and arteries    →     [BLANK-3]    →   Pulmonary veins  →   Left atrium    →   [BLANK-4]  valve  →    [BLANK-5]    →  Aortic (SL) valve   →     [BLANK-6]   →    rest of body  

Which of the following ECG/EKG graphs appears normal?

A.  Calculate stroke volume if end diastolic volume (EDV) is 135 ml/beat and end systolic volume (ESV) is 65 ml/beat. Show your work. Remember to include the units in your answers! Bold or highlight your final answer. B.  Using the necessary numbers from question A, calculate cardiac output (CO) if HR = 65 bpm. Show your work. Remember to include the units in your answers!  Bold or highlight your final answer. 

Why would stroke volume increase if the heart rate slows down?  Explain in 1-3 sentences, please.

An object of 5 kg is moving initially at 4 m/s in the positive x direction. At time t=0, it is acted upon by a force F=(4t+1) N in the positive x direction. What is the velocity of the object at t=5 s?

What is the potential energy associated with a conservative force F(x)=3x^2-1? Please draw the graph of U(x) in your supporting work. Is there a stable equilibrium point for this potential energy?

As in the previous problem, a uniform rod of mass M and length L is pivoted at one end. At L/4 from the other end, a point mass m is attached to the rod. The system is held horizontally. As the rod is let go, find the angular velocity of the system at the moment of passing the vertical position.