Author Question: What is the outside temperature if 4000 kcal of heat is lost through a 4.0 m2 pane of 0.30 cm thick ... (Read 84 times)

casperchen82 · **on:** Jul 29, 2018

What is the outside temperature if 4000 kcal of heat is lost through a 4.0 m2 pane of 0.30 cm thick glass (k = 2.0 10-4 kcal/smC) in one hour from a house kept at 20C?

A)

0C

B)

4C

C)

16C

D)

18C

E)

24C

Question 2

A wave pulse on a string whose end is free is reflected without inversion.

Indicate whether the statement is true or false