Conduction: Some properties of a certain glass are listed here:Density 2300 kg/m3Specific heat capacity 840 J/kg ? C°Coefficient of thermal expansion 8.5 × 10-6 (C°)-1 Thermal conductivity 0.80 W/m ? C° A glass window pane is 2.7 m high, 2.4 m wide, and 9.0 mm thick. The temperature at the inner surface of the glass is 19°C and at the outer surface 4°C. How much heat is lost each hour through the window?
A. 3.1 × 107 J
B. 3.1 × 104 J
C. 8.6 × 103 J
D. 8.6 J
E. 3.1 × 105 J
Answer: A
You might also like to view...
The figure shows the position of an object as a function of time, with all numbers accurate to two significant figures. Between time and time (a) what is the average speed of the object? (b) what is the average velocity of the object?
What will be an ideal response?
How is the Mars Rover mission different from Global Surveyor mapping mission?
What will be an ideal response?
When a car goes around a banked circular curve at the proper speed for the banking angle, what force cause it to follow the circular path?
A) the normal force exerted by the road on the car perpendicular to the road's surface B) the friction force exerted by the road on the car C) the force that Earth exerts on the car D) No force causes the car to do this because the car is traveling at constant speed and therefore has no acceleration.
To make a p-type semiconductor from silicon, one element that might be added as an impurity is ________.
Fill in the blank(s) with the appropriate word(s).