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Author Question: If the uncertainty in the position of a proton is 0.053 nm, what is the uncertainty in its speed? (h ... (Read 45 times)

mmm

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on: Jul 29, 2018
If the uncertainty in the position of a proton is 0.053 nm, what is the uncertainty in its speed? (h = 6.626  10-34 J  s, mproton = 1.67  10-27 kg)
 
  A) 2.2 m/s B) 0.60 km/s C) 1.2 km/s D) 0.98 km/s E) 37 m/s

Question 2

A simple series circuit consists of just a 3.4-F capacitor and an 80-mH inductor, with no appreciable resistance. At t = 0 the capacitor has charge 5.4 C and the current in the inductor is zero.
 
  (a) How long after t = 0 will the current in the circuit be maximum?
  (b) What will be this maximum current?


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blakcmamba

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

C

Answer to Question 2

(a) 0.82 ms (b) 10 mA


mmm

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Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


blakcmamba

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Reply #3 on: Jul 29, 2018
Great! Please up vote :D


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