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Home Q & A Board Science-Related Homework Help Physics Astronomy
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dundlermuffin dundlermuffin
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6 years ago
A golf club exerts an average force of 1000 N on a 0.045-kg golf ball which is initially at rest. The club is in contact with the ball for 1.8 ms. What is the speed of the golf ball as it leaves the tee?
 
  A) 30 m/s
  B) 35 m/s
  C) 40 m/s
  D) 45 m/s
  E) 50 m/s

Question 2

A heat engine absorbs 64 kcal of heat each cycle and exhausts 42 kcal.
 
  (a) Calculate the efficiency each cycle.
  (b) Calculate the work done each cycle.

Question 3

Which term in the simplified Drake equations depends on sociological factors?
 
  A) NHP
  B) flife
  C) fciv
  D) fnow
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bpetronickbpetronick
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6 years ago
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dundlermuffin Author
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6 years ago
This site is awesome
sweetalia
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Yesterday
Helped a lot
patyfeitosa
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2 hours ago
Thanks
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