What does the prefix kilo- stand for?
What will be an ideal response?
103
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When stars are moving away from us the color of their light is shifted toward the ______ (red or blue) end of the light spectrum because the wavelegth is ________ (shorter or longer).
a. red; longer b. red; shorter c. blue; longer d. blue; shorter
The speed of a 4.0-kg object is given by v = (2t) m/s, where t is in s. At what rate is the resultant force on this object doing work at t = 1 s?
a. 48 W b. 40 W c. 32 W d. 56 W e. 16 W
What is the current through the 2.0-? resistor?
a.
1.0 A
b.
0.50 A
c.
1.5 A
d.
2.0 A
Suppose you are throwing two dice in a friendly game of craps. For any given
throw, the two numbers that are face up can have a sum of 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12. Which outcome is least probable?
1.2 2.2 and 12 3.7 4.6 and 10 5.11