Old Faithful geyser in Yellowstone Park shoots water hourly to a height of 40.0 m. With what velocity does the water leave the ground?
a. 14.0 m/s
b. 19.8 m/s
c. 20 m/s
d. 28.0 m/s
e. 784 m/s
d
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During a lunar eclipse the Moon's phase must be
A) 3rd quarter. B) 1st quarter. C) new. D) full.
A person discovers that the 5 ampere fuse in his car's brake light circuit is blown. Not having a spare 5 ampere fuse available, he replaces it with a new 10 ampere fuse. What is likely to happen as he uses the brakes?
A. The circuit overheats and the brake lights do not work B. The fuse blows immediately C. Nothing bad happens; everything works well for a long time D. The brake lights shine more dimly than before
A bimetallic strip is usable as a thermometer because of the property of __________
Fill in the blank(s) with correct word
A scuba diver has his lungs filled to half capacity (3 liters) when 10 m below the surface. If the diver holds his breath while quietly rising to the surface, what will the volume of the lungs be (in liters) at the surface? Assume the temperature is the same at all depths. (The density of water is 1.0 × 10^3 kg/m3.)
a. 5.9 b. 4.5 c. 6.4 d. 3.9 e. 3.1