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Author Question: A 220-kg object is lifted at a constant speed through a height of 42 m by a crane. If the crane ... (Read 112 times)

sheilaspns

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on: Jul 29, 2018
A 220-kg object is lifted at a constant speed through a height of 42 m by a crane. If the crane takes a total time of 1.8 seconds to lift this object, what is the average power required? Use g = 10 m/s2.
 
  A) 25 kW
  B) 51 kW
  C) 75 kW
  D) 100 kW
  E) 150 kW

Question 2

Mrs. Jones went on a diet and lost 15 kilograms. How many pounds did she lose?
 
  A) 68 pounds
  B) 42 pounds
  C) 38 pounds
  D) 33 pounds
  E) 6.8 pounds


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Leostella20

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

B

Answer to Question 2

D


sheilaspns

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Reply 2 on: Jul 29, 2018
Excellent

ryhom

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Reply 3 on: Yesterday
Gracias!

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