The current through two identical light bulbs connected in series is 0.25 A. The voltage across both bulbs is 110 V. The resistance of a single light bulb is
A) 22 ohms.
B) 44 ohms.
C) 220 ohms.
D) 440 ohms.
E) none of the above
Answer: C
Physics & Space Science
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Pioneer 10 was able to escape the solar system by
A) having a sufficient escape velocity at launch. B) "bouncing off" Jupiter like a tennis ball bouncing off an approaching tennis racket. C) refueling via solar cells. D) nuclear-powered sustained thrust.
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The element potassium should produce compounds most similar to those of
a. Tc. b. Na. c. Al. d. Sr.
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A car travels counterclockwise around a flat circle of radius 0.25 km at a constant speed of 20 m/s. When the car is at point A as shown in the figure, what is the car's acceleration?
a.
1.6 m/s2, south
b.
Zero
c.
1.6 m/s2, east
d.
1.6 m/s2, north
e.
1.6 m/s2, west
Physics & Space Science