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Author Question: A glass tea kettle containing 500 g of water is on top of the stove. The portion of the tea kettle ... (Read 224 times)

stephzh

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on: Jul 29, 2018
A glass tea kettle containing 500 g of water is on top of the stove. The portion of the tea kettle that is in contact with the heating element has an area of 0.090 m2 and is 1.5 mm thick.
 
  At a certain moment, the temperature of the water is 75C, and it is rising at the rate of 3 C per minute. What is the temperature of the outside surface of the bottom of the tea kettle? The thermal conductivity of glass is 0.840 W/(mK). Neglect the heat capacity of the kettle. A) 39C
  B) 92C
  C) 120C
  D) 86C
  E) 77C

Question 2

What type of acceleration does an object moving with constant speed in a circular path experience?
 
  A) free fall.
  B) terminal acceleration.
  C) constant acceleration.
  D) linear acceleration.
  E) centripetal acceleration.


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IAPPLET

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

E

Answer to Question 2

E


stephzh

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Reply 2 on: Jul 29, 2018
Excellent

Laurenleakan

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Reply 3 on: Yesterday
:D TYSM

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