An 8000-kg aluminum flagpole 100-m long is heated by the Sun from ...

[evelyn o bentley]

An 8000-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/g/C.
 a. 7.2  105
  b. 7.2  107
  c. 7.2  103
  d. 7.2  101
  e. 7.2  102

Question 2

An 8000-kg aluminum flagpole 100 m long is heated by the Sun from a temperature of 10C to 20C. Find the work done (in J) by the aluminum if the linear expansion coefficient is 24  106 (C)1 . (The density of aluminum is 2.7  103 kg/m3 and 1 atm = 1.0  105 N/m2.)
 a. 287
  b. 425
  c. 213
  d. 710
  e. 626

[polinasid]

Answer to Question 1

b

Answer to Question 2

c

[evelyn o bentley]

Both answers were spot on, thank you once again

[polinasid]

Great! Please up vote