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Author Question: A 4.0-kg aluminum block is originally at 10C. If 160 kJ of heat is added to the block, what is its ... (Read 82 times)

dejastew

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on: Jul 29, 2018
A 4.0-kg aluminum block is originally at 10C. If 160 kJ of heat is added to the block, what is its final temperature? The specific heat capacity of aluminum is 910 J/kg  K.
 
  A) 24C
  B) 34C
  C) 44C
  D) 54C

Question 2

An object is placed near a concave mirror having a radius of curvature of magnitude 60 cm. How far should you place the object from the mirror so that the lateral magnification produced by the mirror will be +2.5?
 
  A) 18 cm
  B) 24 cm
  C) 30 cm
  D) 36 cm
  E) 42 cm


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xMRAZ

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

D

Answer to Question 2

A


dejastew

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Reply 2 on: Jul 29, 2018
Gracias!

bblaney

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Reply 3 on: Yesterday
Excellent

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