Need help with this problem.... session. masteringphysics. com Spring 2015, PHYS

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Need help with this problem....

session. masteringphysics. com Spring 2015, PHYS 1111/1113, Sections A/ BB-EE Signed in as Brandon Cole Heb Cos LINCh-14) Problem 14.19 Resources previous 6 of 14 next Problem 14.19 Part A One of the moving parts of an engine contains 1.65 kg of aluminum and 0.312kg of iron and is designed to operate at 215 C How much heat is required to raise its temperature from 20.7 C to 215 C? Wy Answers Give UR Incorrect; Try Again; 2 attempts remaining Prowide Feedbeck Continue the fo 25 7 8 0

Explanation / Answer

m1c1 + m2c2)*dT = (1.65*904 + .312*449) (215 - 20.7) = 3.17*105 J

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