1. Think of Bernoulli's equation for an ideal fluid flowing
through a horizontal pipe. Imagine taking measurements along the
pipe in the direction of fluid flow. What happens to the sum of
pressure and energy per unit volume (first two terms of the
Bernoulli equation)?
a. it remains constant as the diameter of the pipe
changes.
b. none
c. increases as the diameter of the pipe increases
d. decreases as the diameter of the pipe increases
2. If the 2.00 cm diameter inlet tube narrows by 1.00 cm in
diameter, what is the pressure drop in the narrow section for the
2.16 m / s air flow in the 2.00 cm section? (Suppose the density of
air is 1.25 kg / m ^ 3)
to. 11.7 Pa
b. 45.7 Pa
c. 20.3 Pa
d. 43.7 Pa