Resonance occurs in an AC series circuit when which of the following conditions is met?
a. capacitive reactance equals zero
b. capacitive reactance equals inductive reactance
c. resistance equals capacitive reactance
d. resistance equals inductive reactance
B
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The maximum mass for a white dwarf is 1.4 solar masses
Indicate whether the statement is true or false
A rock is thrown upward with a speed of 12 m/s on the surface of planet X where the acceleration of objects in free fall is 1.5 m/s2 and there is no atmosphere. How long does it take for the laser to reach the maximum height?
A) 8.0 s B) 11 s C) 14 s D) 16 s
A wheel rotating about a fixed axis has a constant angular acceleration of 4.0 rad/s2 . In a 4.0-s interval the wheel turns through an angle of 80 radians. Assuming the wheel started from rest, how long had it been in motion at the start of the 4.0-s interval?
a. 2.5 s b. 4.0 s c. 3.5 s d. 3.0 s e. 4.5 s
Exhibit 17-1
The figure below shows a sine wave at one point of a string as a function of time.
?
?
Use the exhibit to answer the following question(s).
Refer to . Which of the graphs below shows a wave where the amplitude and frequency are each reduced in half?
a.
