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Author Question: The peak current and voltage outputs of a generator are 20 A and 240 V, respectively. What average ... (Read 105 times)

cdr_15

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on: Jul 29, 2018
The peak current and voltage outputs of a generator are 20 A and 240 V, respectively. What average power is provided by the generator?
 
  What will be an ideal response?

Question 2

Suppose that the Hubble constant had the value 35.0 km/s per million light-years.
 
  (1 y = 3.156  107 s, mH  mproton = 1.67  10-27 kg, c = 3.00  108 m/s, 1 light-year = 9.461  1015 m, G = 6.67  10-11 N  m2/kg2)
  (a) What would be the maximum density the universe could have that would still allow it to expand forever?
  (b) Under the conditions of part (a), how many hydrogen atoms would we expect to find, on the average, in a volume of space measuring 3.00 m by 8.00 m by 8.00 m?


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Ddddd

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

2.4 kW

Answer to Question 2

(a) 2.45  10-26 kg/m3 (b) 2820 atoms


cdr_15

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Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review

vickyvicksss

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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