A certain CD-ROM disk can store approximately 6.0 × 102 megabytes of information, where 106 bytes = 1 megabyte. If an average word requires 9.0 bytes of storage, how many words can be stored on one disk?
A) 6.7 × 107 words
B) 5.4 × 109 words
C) 2.1 × 107 words
D) 2.0 × 109 words
A
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a. True b. False Indicate whether the statement is true or false
Plane Mirrors: You may have seen ambulances on the street with the letters of the word AMBULANCE written on the front of them, in such a way as to appear correctly when viewed in your car's rear-view mirror. (See the figure.) How do the letters appear when you look directly at the ambulance (not through the mirror)?
A. a B. b C. c D. d E. e
Applications to Astronomy: The cosmic background radiation corresponds to a temperature of about
A. 1.4 K. B. 2.7 K. C. 8.0 K. D. 20 K.
A child on a playground swings through a total of 32 degrees. If the displacement is equal on each side of the equilibrium position, what is the amplitude of this vibration?
a. 32 b. 16 c. 64