A hole is poked through the metal side of a drum holding water. The hole is 16.0 cm below the water surface. What is the initial speed of outflow?
a. 1.77 m/s
b. 17.7 m/s
c. 0.566 m/s
d. 3.14 m/s
e. 1.25 m/s
a
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The planet(s) of our solar system that are never visible to the naked eye are
a. Pluto. b. Mercury, Neptune, and Pluto. c. Saturn, Uranus, Neptune, and Pluto. d. Neptune and Pluto. e. Mercury and Venus.
The ____ of a star is a measure of the total energy radiated by the star in one second
a. color b. apparent visual magnitude c. luminosity class d. spectral type e. luminosity
While studying some sedimentary rocks in your field area, you find a mineral with rhombohedral cleavage that reacts with hydrochloric acid. You determine that this mineral is:
-muscovite. -calcite. -olivine. -quartz. -gypsum.
The closest star to the Sun is about how far away?
a. 17.7 light-years b. 0.52 light-years c. 33.6 light-years d. 4.3 light-years