An empty spice bottle has an inner volume of 1.31 × 10^?4 m3 . It has a mass of 112 g when filled with air, and it displaces 1.63 × 10^?4 m3 of water when fully submerged. What volume of mercury (?Hg = 13.6 × 10^3 kg/m3) must be added to the empty bottle so that it will just submerge?
a. 3.75 cm3
b. 12.0 cm3
c. 101 cm3
d. 147 cm3
e. 237 cm3
a
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A(n) _____________material has properties that are equal in three perpendicular directions.
Fill in the blank(s) with the appropriate word(s).
Springs: An ideal spring with a spring constant (force constant) of 22 N/m is stretched from equilibrium to 2.9 m. How much work is done in the process?
A. 93 J B. 186 J C. 47 J D. 121 J
What was the main difference between the time capsules carried on the Pioneer probes and the time capsules carried on the Voyager probes?
A) no difference, the time capsules were identical B) the time capsule on Voyager contained a record with video and audio messages C) the time capsule on Pioneer contained a record with video and audio messages D) the time capsule on Voyager contained video, but no audio
The drag on an airplane wing in flight is known to be a function of density of air (??? viscosity of air (?), free-stream velocity (U?, characteristic dimension of the wing(S) and the shear stress on the surface of the wing (Ts).
Show that the dimensionless drag
can be expressed as a function of the Reynolds number
GIVEN
An airplane wing in flight
Drag on wing
FIND
