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In this diagram, B1, B2 and B3 are
identical 4 ohm bulbs.
Hisxfisy pisu barb
och
AN
(AU
ai
Calibri (Body)
X
Pade
a Is this a series or parallel circuit?
b If ammeter Al reads A, what is the
current through A2?
c What is the current through A3?
d What is the total voltage provided by
the four cells?
e Voltmeter V2 reads 2v. What does V3
read?
f What must VI read?
COS
B
1
U
K-
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Zirconium has an hcp crystal structure and a density of 6.51 g/cm3. (a) what is the volume of its unit cell in m3? (b) if the c/a ratio is 1.593, compute the values of c and a.

Arotating space station is said to create “artificial gravity”—a loosely-defined term used for an acceleration that would be crudely similar to gravity. the outer wall of the rotating space station would become a floor for the astronauts, and centripetal acceleration supplied by the floor would allow astronauts to exercise and maintain muscle and bone strength more naturally than in non-rotating space environments. if the space station is 200 m in diameter, what angular velocity would produce an “artificial gravity” of 9.80 m/s^{2} 2 at the rim?

Which of the following is the phase that results when the moon is on the opposite side of the earth from the sun? a. quarter moon b. crescent moon c. new moon d. full moon