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Author Question: An electron in a TV picture tube is accelerated through a potential difference of 20 kV before it ... (Read 74 times)

Pineappleeh

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on: Jul 28, 2018
An electron in a TV picture tube is accelerated through a potential difference of 20 kV before it hits the screen. What is the kinetic energy of the electron in electron volts? (1 eV = 1.6  10-19 J)
 a. 6.25  1022 eV
  c. 2.0  104 eV
  b. 1.0  104 eV
  d. 3.2  10-22 eV

Question 2

Consider a point on a bicycle wheel as the wheel turns about a fixed axis, neither speeding up nor slowing down. Compare the linear and angular accelerations of the point.
 a. Both are zero.
  c. Only the linear acceleration is zero.
  b. Only the angular acceleration is zero.
  d. Neither is zero.


frankwu0507

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

C

Answer to Question 2

B


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