An 8 000-kg aluminum flagpole 100-m high is heated by the sun ...

[RODY.ELKHALIL]

An 8 000-kg aluminum flagpole 100-m high is heated by the sun from a temperature of 10C to 20C. Find the increase in internal energy (in J) of the aluminum. (The coefficient of linear expansion is 24  10-6 (C)-1, the density is 2.7  103 kg/m3, and the specific heat of aluminum is 0.215 cal/gC.)
 a. 7.2  105
  b. 7.2  107
  c. 7.2  103
  d. 7.2  101
  e. 7.2  102

Question 2

An 8 000-kg aluminum flagpole 100-m long is heated by the sun from a temperature of 10C to 20C. Find the heat transferred (in J) to the aluminum if the specific heat of aluminum is 0.215 cal/gC.
 a. 7.2  105
  b. 7.2  107
  c. 7.2  103
  d. 7.2  101
  e. 7.2  102

[Bigfoot1984]

Answer to Question 1

B

Answer to Question 2

B

[RODY.ELKHALIL]

TY

[Bigfoot1984]

You're welcome