Which of the following is NOT true about streaming media?
A. You need very high bandwidth to stream media.
B. Frequently it requires a specific media server to transfer data.
C. It consumes RAM even when it is not being played.
D. Users can choose the file portion they want to play.
Answer: C
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Series/Parallel Circuits: You obtain a 100-W light bulb and a 50-W light bulb. Instead of connecting them in the normal way, you devise a circuit that places them in series across normal household voltage. If each one is an incandescent bulb of fixed resistance, which statement about these bulbs is correct?
A. Both bulbs glow with the same brightness, but less than their normal brightness. B. Both bulbs glow with the same brightness, but more than their normal brightness. C. The 100-W bulb glows brighter than the 50-W bulb. D. The 50-W bulb glows more brightly than the 100-W bulb.
Air pressure is 1.00 × 10^5 N/m2, air density is 1.30 kg/m3, and the density of soft drinks is 1.00 × 10^3 kg/m3 . If one blows carefully across the top of a straw sticking up 0.10 m from the liquid in a soft drink can, it is possible to make the soft drink rise half way up the straw and stay there. How fast must the air be blown across the top of the straw?
a. 0.036 m/s b. 27 m/s c. 1.4 m/s d. 19 m/s e. 750 m/s
The compound Mg(OH)2 is commonly known as
a. Epsom salt. b. Alka-Seltzer. c. smelling salts. d. milk of magnesia.
The surfaces of a Dewar flask are silvered for the purpose of minimizing heat transfer by what process?
a. conduction c. convection b. radiation d. vaporization