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Author Question: One observation that suggests that the Earth has a dense central core is that A) the Earth has ... (Read 99 times)

jasdeep_brar

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on: Jul 27, 2018
One observation that suggests that the Earth has a dense central core is that
 
  A) the Earth has plate tectonics
  B) surface rocks have the same density as the overall density of the planet
  C) surface rocks have a lower density than overall density of the planet
  D) surface rocks have a higher density than the overall density of the planet

Question 2

The current through a 50.  resistor is I = 0.80 sin (240. t) amperes.
 
  (a) At what frequency does the current vary?
  (b) How much power is dissipated in the resistor?


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Perkypinki

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Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

(a) 38. Hz
(b) 16. W


jasdeep_brar

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Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

xiaomengxian

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Reply 3 on: Yesterday
Excellent

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