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A few things . . .

A few things . . . Who still doesn’t have a book? Homework and retries Labs In S415 ESC Can be done anytime during week (sooner=better) Turn into boxes outside classroom. No make-up--equipment is taken down Sat. Melting ice.

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A few things . . .

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  1. A few things . . . • Who still doesn’t have a book? • Homework and retries • Labs In S415 ESC • Can be done anytime during week (sooner=better) • Turn into boxes outside classroom. • No make-up--equipment is taken down Sat.

  2. Melting ice

  3. Discussion Question: An Alka-Seltzer tablet dissolves in water and the CO2 gas goes into a balloon. When it dissolves the scale reading • Goes up • Goes down • Stays the same Do not neglect the buoyancy of air. CO2 is more dense than Air

  4. Moving Fluids Conservation of Mass A1 A2 v1 v2 What are the assumptions?

  5. Air flows from a pipe with large diameter into a pipe with smaller diameter. The pressure of the air in the small pipe is (a) greater than, (b) less than, or (c) equal to the pressure in the large pipe. Q12-5

  6. Where did this come from? What is the constant? What are the assumptions?

  7. A blood platelet drifts along with the flow of blood through an artery that is partially blocked by deposits. As the platelet moves from the narrow region to the wider region, it experiences A. an increase in pressure.B. no change in pressure.C. a decrease in pressure.

  8. The pressure at the top of a large water tank is 2 atm, the distance from the top to a pipe is 10 m, and the area of the pipe is .1 m2. What is the velocity of the water coming out?

  9. Dogma? @sqcomic "Don't interfere with anything in the Constitution.That must be maintained, for it is the only safeguard of our liberties." Abraham Lincoln @jaclong @sqcomic Forgive me but that sounds not unlike a religious dogma...

  10. Thomas S. Monson, April 2012 General Conference The toy boats of childhood had no keel for stability, no rudder to provide direction, and no source of power. Inevitably, their destination was downstream-the path of least resistance. Unlike toy boats, we have been provided divine attributes to guide our journey. We enter mortality not to float with the moving currents of life but with the power to think, to reason, and to achieve.

  11. Thomas S. Monson, April 2012 General Conference Our Heavenly Father did not launch us on our eternal voyage without providing the means whereby we could receive from Him guidance to ensure our safe return. I speak of prayer. I speak too of the whisperings from that still, small voice; and I do not overlook the holy scriptures, which contain the word of the Lord and the words of the prophets-provided to us to help us successfully cross the finish line.

  12. Water flows downhill through a pipe with constant diameter. At the bottom of the hill, the velocity of the water is (a) greater than, (b) less than, or (c) equal to its velocity at the top of the hill. Q12-5

  13. Water flows downhill through a pipe with constant diameter. At the bottom of the hill, the pressure of the water is (a) greater than, (b) less than, or (c) equal to its pressure at the top of the hill. Q12-5

  14. Half the story of an airplane wing

  15. Waves • What are they? Where do they come from?

  16. Sine Waves • Amplitude • Frequency • Angular Frequency • Period • Wavelength • Wavenumber

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