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Author Question: A car wash nozzle directs a steady stream of water at 1.5 kg/s, with a speed of 20 m/s, against a ... (Read 41 times)

Shelles

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on: Jul 28, 2018
A car wash nozzle directs a steady stream of water at 1.5 kg/s, with a speed of 20 m/s, against a car window. What force does the water exert on the glass? Assume the water does not splash back.
 a. 30 N
  c. 300 N
  b. 45 N
  d. 440 N

Question 2

Electrons in a particle beam each have a kinetic energy of 3.2  10-17 J. What is the magnitude of the electric field that will stop these electrons in a distance of 0.05 m? (e = 1.6  10-19 C)
 a. 2000 N/C
  c. 200 N/C
  b. 4000 N/C
  d. 1000 N/C


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ryansturges

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

A

Answer to Question 2

B


Shelles

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Reply #2 on: Jul 28, 2018
Thank you!


ryansturges

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Reply #3 on: Jul 28, 2018
Always glad to help...


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