For a pair of oppositely charged parallel plates, the negatively charged plate is at a lower electric potential than the positively charged one by an amount ?V
Indicate whether the statement is true or false
TRUE
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Suppose the main water pipe breaks in a nuclear power plant, shutting off the water flow. If the control rods fall immediately into place, stopping the chain reaction, is there still a problem?
A) Yes, because radioactivity continues to create lots of thermal energy. B) Yes, because the uranium can still fission even though it is not chain-reacting. C) Yes, because the control rods stop only the fissioning of uranium and not the fissioning of plutonium. D) No, because no heat can be created once the fission reaction is shut off. E) No, because the small amount of heat that continues being created is not enough to cause any danger.
Exhibit 16-1
A graph of position versus time for an object oscillating at the free end of a horizontal spring is shown below.
?
?
Use this exhibit to answer the following question(s).
Refer to . The point at which the object has zero velocity and positive acceleration is
a.
A
b.
B
c.
C
d.
D
e.
E
A vertical tube one meter long is open at the top. It is filled with 75 cm of water. If the velocity of sound is 344 m/s, what will the fundamental resonant frequency be (in Hz)?
a. 3.4 b. 172 c. 344 d. 1.7 e. 688
Any flow of water occurring between well-defined banks is defined by geologists as
a. a stream. b. a meander. c. a lake. d. none of these.