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Author Question: A flat horizontal plate of area 400 cm2 is dragged over a 0.20 cm thick layer of oil at a speed of ... (Read 89 times)

anshika

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on: Jul 29, 2018
A flat horizontal plate of area 400 cm2 is dragged over a 0.20 cm thick layer of oil at a speed of 30.0 cm/s. The oil is resting on a fixed horizontal surface. It takes a force 1.20 N applied to the plate to sustain this speed.
 
  What is the viscosity of the oil? A) 6.00 kg/m  s
  B) 20.0 kg/m  s
  C) 60.0 kg/m  s
  D) 0.200 kg/m  s
  E) 200 kg/m  s

Question 2

A cart has an initial velocity of 5.0 m/s to the right and a constant acceleration of 2.0 m/s2 to the right. What is the cart's displacement during the first 6.0 s of this motion?
 
  A) 10 m
  B) 55 m
  C) 66 m
  D) 80 m


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ladyjames123

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

D

Answer to Question 2

C


anshika

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Reply 2 on: Jul 29, 2018
Wow, this really help

daiying98

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Reply 3 on: Yesterday
Excellent

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