The water level in a reservoir is maintained at a constant level. What is the exit velocity in an outlet pipe 3.0 m below the water surface?
a. 2.4 m/s
b. 3.0 m/s
c. 5.4 m/s
d. 7.7 m/s
e. 49 m/s
D
You might also like to view...
Earth's rotation is connected with a very slow celestial motion that can be detected only over _____
a. centuries b. decades c. a year d. a few months e. short brief periods
Degeneracy pressure is the source of the pressure that stops the crush of gravity in all the following except
A) a brown dwarf. B) a white dwarf. C) a neutron star. D) the core of a high-mass main-sequence star.
A gas heated to millions of degrees would emit
A) mostly radio waves. B) mostly X-rays. C) no light, because it is too hot. D) mostly ultraviolet light. E) an equal amount of all wavelengths of light.
A billion-solar-mass black hole would still have a radius of only
A) 15 pc. B) 3 kpc. C) 150 kilometers. D) 20 AU. E) two million light-years.