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Author Question: A series LRC circuit consists of an ac voltage source of amplitude 75.0 V and variable frequency, a ... (Read 113 times)

B

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on: Jul 29, 2018
A series LRC circuit consists of an ac voltage source of amplitude 75.0 V and variable frequency, a 12.5-F capacitor, a 5.00-mH inductor, and a 35.0- resistor.
 
  (a) To what angular frequency should the ac source be set so that the current amplitude has its largest value? (b) Under the conditions of part (a), what is the maximum current amplitude? (c) Suppose that the voltage source is set to twice the angular frequency needed in part (a). What will be the current amplitude in this case?

Question 2

In massive stars, three helium atoms fuse together, forming a carbon nucleus. This reaction heats the core of the star. The net mass of the three helium nuclei must therefore be
 
  A) higher than that of the carbon nucleus.
  B) less than that of the carbon nucleus.
  C) the same as that of the carbon nucleus (mass is always conserved).


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aloop

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Reply #1 on: Jul 29, 2018
Answer to Question 1

(a) 4.00  103 rad/s (b) 2.14 A (c) 1.63 A

Answer to Question 2

A


B

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Reply 2 on: Jul 29, 2018
:D TYSM

Liddy

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Reply 3 on: Yesterday
Wow, this really help

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