Warmup #21: Bernoulli's Equation

Course

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IN:
The first three questions refer to the material you were to read in preparation for the lesson. Questions one and two require you to write a three or four sentence response. Number three is a multiple choice question. Click in the appropriate circle. Questions 4 is your opportunity to suggest what we should emphasize today and how.

You may change your mind as often as you wish. When you are satisfied with your responses, click the SUBMIT button at the bottom of this page.


For the purpose of these problems use 10 m/s2 for g and 100000 N/m2 for 1 atm.

1. What is the pressure at point C?

  1. 1.0 atm
  2. 7.5 atm
  3. 8.5 atm
  4. 9.0 atm
  5. 10 atm

2. For the purpose of this problem use 10 m/s2 for g and 100000 N/m2 for 1 atm.What is the pressure at point D?

  1. 1.0 atm
  2. 7.5 atm
  3. 8.5 atm
  4. 9.0 atm
  5. 10 atm

3. Use Bernoulli's Equation to estimate the force on a 1.5 m2 windshield as a 60 mph (30 m/s) wind blows over it. The air in the car is stationary and the car windows are shut tight. If we're using an equation, why is this an estimate?






4. Below is a space for your thoughts, including general comments about today's assignment (what seemed impossible, what reading didn't make sense, what we should spend class time on, what was "cool", etc.):




You may change your mind as often as you wish. When you are satisfied with your responses, click the SUBMIT button.

I received no help from anyone on this assignment.