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blac D www.google.com k Announcements meta x Assignments Mastering Physics: PS-1-Advanced Google Chrome Secure https:// session.masteringphysics.com /myct/itemView? assignment ProblemID 374 Help I Close PHYS1052 General Physics II PS-1-Advanced Problem 16.49 Mastering Phys previous l 4 of 12 l next ACTIONS O My Courses Problem 16.49 nt View Course Home Part A nt Mew A glass window 0.40 cm thick measures 84 cm by How much heat flows through this window per minute if the inside and outside temperatures differ by 17°C? Syllabus 36 cm Express your answer using two significant figures, Assignments Ed nt View Scores Course Tools eText Submit My Answers Give up Study Area User Settings incorrect Try Again, 5 attempts remaining Continue Provide Feedback Ask me anything 9/2017Explanation / Answer
16.49)
Area of he window, A = 0.84*0.36 = 0.3024 m^2
thickness, d = 0.4 cm = 0.004 m
dT = 17 C
we know,
thermal conductivity of glass, k = 0.96 W/(m k)
the rate of energy tranfered,
Q/t = k*A*dT/d
= 0.96*0.3024*17/0.004
= 1234 J/s
= 1234*60 J/min
= 74 kJ/min <<<<<<<<<<<<<--------------Answer
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