For objects the size of baseballs, cars, and airplanes, an uncertainty in momentum of magnitude only one percent yields a limiting uncertainty in position that
A)
is also one percent.
B)
is so small as to be unmeasurable.
C)
is quite large.
D)
does not exist.
E)
is 50%.
B
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The gauge pressure of the water in a swimming pool at 10 ft is ____________ the gauge pressure of the water at 5 ft
a. 1/4 b. 1/2 c. equal to d. 2 times e. 4 times
Determine the intensity (in W/m2) of a harmonic longitudinal wave with a pressure amplitude of 8.0 × 10^?3 N/m2 propagating down a tube filled with helium. (? = 0.179 kg/m3, v = 972 m/s.)
a. 3.7 × 10^?7 b. 1.8 × 10^?7 c. 9.2 × 10^?8 d. 4.6 × 10^?8 e. 1.5 × 10^?9
Instructions: On occasion, the notation 
will be a shorthand notation for 
.
Vectors 
and 
are shown. What is the magnitude of a vector 
if 
?
?
?
A. 46
B. 10
C. 30
D. 78
E. 90
Pour two liters of water at 40°C into one liter of water at 20°C and the final temperature of the two becomes
A) less than 30°C. B) at or about 30°C. C) more than 30°C.