An ideal incompressible fluid flows at 12 m/s in a horizontal pipe. If the pipe widens to twice its original radius, what is the flow speed in the wider section?
A) 12 m/s
B) 6.0 m/s
C) 4.0 m/s
D) 3.0 m/s
D
You might also like to view...
The electric resistance of a superconductor is
A) zero. B) infinite. C) usually lower than ordinary resistors. D) none of the above
An object slides on a level floor. It slows and comes to a stop with a constant acceleration of magnitude 2.4 m/s2. What is the coefficient of kinetic friction between the object and the floor?
A) 0.24 B) 0.48 C) 0.12 D) It is impossible to determine without knowing the mass of the object.
Process of Science: A scientific theory must produce testable hypotheses that are then evaluated when data are available
What testable hypotheses does nebular theory predict? Describe two hypotheses about solar systems that come from nebular theory that we can test when more data on other solar systems become available.
According to special relativity, at speeds approaching the speed of light, the kinetic energy of a moving object is not equal to 1/2 mv2
a. True b. False Indicate whether the statement is true or false