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Author Question: A high voltage transmission line of diameter 2 cm and length 2 km carries a steady current of 1000 ... (Read 128 times)

ENagel

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on: Jul 28, 2018
A high voltage transmission line of diameter 2 cm and length 2 km carries a steady current of 1000 A. If the conductor is copper with a free charge density of 8  1028 electrons/m3, how long does it take one electron to travel the full length of the cable? (e = 1.6  10-19 C)
 a. 8  102 s
  c. 8  106 s
  b. 8  108 s
  d. 8  104 s

Question 2

The total kinetic energy of a baseball thrown with a spinning motion is a function of:
 a. its linear speed but not rotational speed. c. both its linear and rotational speeds.
  b. its rotational speed but not linear speed. d. neither its linear nor rotational speed.


cici

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Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

C


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