A hornet circles around a pop can at constant speed once per second in a path with a 12-cm diameter. We can conclude that the hornet's wings must push on the air with force components that are
a. straight down.
b. down and inwards.
c. down and outwards.
d. down and backwards.
e. down, inwards and backwards.
c
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If the log of the creep strain rate is plotted as a function of the log of the applied stress, the slope is equal to the _________of the applied stress.
Fill in the blank(s) with the appropriate word(s).
A visual defect wherein a person can see distant objects clearly but not nearby objects is called
a. dispersion. b. destructive interference. c. farsightedness. d. nearsightedness.
Graphical Addition: Vectors 
and 
obey the equation 
+ 
= 0. These vectors satisfy which one of the following statements?
A. Vectors 
and 
are at right angles to each other.
B. Vectors 
and 
point in the same direction.
C. Vectors 
and 
have the same magnitudes.
D. The magnitude of 
is the negative of the magnitude of 
.
What is the cutoff frequency for a metal surface that has a work function of 5.42 eV?
A) 1.31 × 1015 Hz B) 2.01 × 1015 Hz C) 3.01 × 1015 Hz D) 5.02 × 1015 Hz E) 6.04 × 1015 Hz