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Author Question: A crane lifts a 2500-kg beam at a steady rate of 15 cm/s using a steel cable whose mass per unit ... (Read 145 times)

jhjkgdfhk

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on: Jul 29, 2018
A crane lifts a 2500-kg beam at a steady rate of 15 cm/s using a steel cable whose mass per unit length is 0.65 kg/m. What is the speed of transverse waves on this cable?
 
  A) 230 m/s
  B) 580 m/s
  C) 1200 m/s
  D) 1900 m/s
  E) 190 m/s

Question 2

A large vat contains 1.000 L of water at 20C. What volume will this water occupy when it is heated up to 80C? Water has a volume expansion coefficient of 210  10-6 K-1.
 
  A) 1.600 L
  B) 1.013 L
  C) 0.987 L
  D) 0.9987 L
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Cnarkel

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

E

Answer to Question 2

B


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