January 21

AP Physics

Gateway High School Olycasts

In: (on overhead)

Objective:• To prepare for and take a test on:

• Hydrostatics: – pressure with depth– Archimedes principle-Buoyant force

• Fluid dynamics:– Equation of continuity– Bernoulli’s equation

Homework check

Water flows steadily from an open tank as in the figure below. The elevation of point 1 is 10.0m, and the elevation of points 2 and 3 is 2.00m. The cross-sectional area at point 2 is 0.0480m2; at point 3 it is 0.0160m2. The area of the tank is very large compared with the

cross-sectional area of the pipe.

Out on overhead