Author Question: Ideal incompressible water flows through a horizontal pipe of cross-sectional area 10.0 cm2 at a ... (Read 57 times)

Zoey63294 · **on:** Jul 29, 2018

Ideal incompressible water flows through a horizontal pipe of cross-sectional area 10.0 cm2 at a pressure of 0.250 atm with a volume flow rate of 1.00 10-3 m3/s. At a valve, the effective cross-sectional area of the pipe is reduced to 5.00 cm2.

What is the pressure at the valve?
A) 0.200 atm B) 0.235 atm C) 0.112 atm D) 0.157 atm

Question 2

According to quantum field theory, what happens when two charged particles exert forces on each other?

A) Each particle causes the other particle's matter field to vibrate more rapidly.
B) The two particles exchange their matter fields with each other.
C) An electromagnetic wave passes from one particle to the other.
D) Electrons are exchanged between them.
E) Photons are exchanged between them.