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Author Question: Ocean tides are waves that have a period of 12 hours and a speed of 750 km/hr. What is their ... (Read 75 times)

Jkov05

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on: Jul 29, 2018
Ocean tides are waves that have a period of 12 hours and a speed of 750 km/hr. What is their wavelength?
 
  A)
 
  9000 km
 
  B)
 
  32,400 km
 
  C)
 
  9000 m
 
  D)
 
  32,400 m
 
  E)
 
  2,500 m

Question 2

An object is rotating with an angular momentum of magnitude 20.0 kgm2/s in a direction directly east. A torque of magnitude 10.0 Nm acts in a direction 30 north of east acts on the object for 5.00 s.
 
  What is the angular momentum after the torque has acted? A)
 
  45.0 kgm2/s, 51.3 north of east
  B)
 
  68.1 kgm2/s, 21.5 north of east
  C)
 
  25.0 kgm2/s, 51.3 north of east
  D)
 
  63.3 kgm2/s east
  E)
 
  32.0 kgm2/s, 51.3 north of east


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s.meritte

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

A

Answer to Question 2

B


Jkov05

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Reply #2 on: Jul 29, 2018
TY


s.meritte

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Reply #3 on: Jul 29, 2018
You're welcome


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