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Author Question: A certain metal has a resistivity of 1.68 10-8 m. You have a long spool of wire made from this ... (Read 55 times)

lbcchick

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A certain metal has a resistivity of 1.68  10-8   m. You have a long spool of wire made from this metal. If this wire has a diameter of 0.15 mm, how long should you cut a segment so its resistance will be 15 ?
 
  A) 16 mm
  B) 16 cm
  C) 1.6 m
  D) 16 m

Question 2

A gas expands from an initial volume of 30.0 L to a final volume of 65.0 L at a constant pressure of 110 kPa. How much work is done on the gas during this expansion?
 
  A) -3.85 kJ
  B) -10.4 kJ
  C) -3850 kJ
  D) -10.4 MJ
  E) -3.85 MJ


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Shshxj

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