Question

Water emerges straight down from a faucet with a 1.80-cm diameter at a speed of 0.500 m/s. (Because of the construction of the faucet, there is no variation in speed across the stream.)

1) What is the volumetric flow rate in cm^3/s? D2
2) BCD on 1.

3) If each droplet of water is in freefall after leaving the faucet, which of the following quantities are the same at a point just leaving the faucet and a point 0.2 m below it? If there are multiple, write them in alphabetical order, with a comma between them and no space between the comma and the next letter.
A. kinetic energy
B. potential energy
C. mechanical energy
D. pressure
E. velocity
F. cross-sectional area
G. volumetric flow rate

4) What is the diameter of the stream 0.200 m below the faucet in cm? D2
5) BCD on 3.

Answer 1

Solution in the uploaded image