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Author Question: A 50.0-kg block is being pulled up a 15.0 slope by a force of 300 N which is directed 30.0 above the ... (Read 80 times)

silviawilliams41

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A 50.0-kg block is being pulled up a 15.0 slope by a force of 300 N which is directed 30.0 above the slope. The coefficient of kinetic friction between the block and the slope is 0.200. What is the acceleration of the block?
 
  A) 1.36 m/s2
  B) 0.158 m/s2
  C) 0.924 m/s2
  D) 0.520 m/s2
  E) 1.47 m/s2

Question 2

The distance between the object and the eyepiece of a compound microscope is 25 cm. The focal length of its objective lens is 0.20 cm and the eyepiece has a focal length of 2.6 cm. A person with a near point 25 cm is using the microscope.
 
  What is the largest angular magnification obtainable using the eyepiece alone as a magnifying lens? A) 6.5
  B) 7.6
  C) 8.6
  D) 9.6
  E) 10.6


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beccamahon

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