Which of the following describes the shape of dust particles, based on polarization of light?
A) diamonds
B) cubes
C) spheres
D) disks
E) rodlike
E
Physics & Space Science
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The direction of a magnetic field at a point can be determined by
a. a generator. b. a compass. c. a transformer. d. electromagnetic induction. e. none of the above.
Physics & Space Science
A 10-V battery moves 7.0 mC of charge through a circuit running from its positive terminal to its negative terminal. How much energy was delivered to the circuit?
a. 1.4 mJ b. 0.67 J c. 0.070 J d. 5.7E+2 J e. 1.4 J
Physics & Space Science
Vector V1 is (5i + 7j - 3k) and V2 = (7i + 2j + 14k). The vector product of these two vectors is:
(A) -104i + 72j - 39k (B) -124i + 62j - 33k (C) 104i - 91j - 39k (D) -114i - 12j + 91k
Physics & Space Science
Of the four jovian planets, which likely formed first?
A) Jupiter B) Saturn C) Uranus D) Neptune
Physics & Space Science