Roofs used for sundecks are designed in a manner similar to floors.
Answer the following statement true (T) or false (F)
True
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A 2 kg block of iron is to be dropped from the roof of a tall building. The initial temperature of the iron is 25oC, and the height of the building is 150 m.
(a) Assuming that the block is insulated and ignoring the effects of the atmosphere, determine the final temperature of the iron when it comes to rest on the ground. (b) Develop a computer model for this problem, and plot the final temperature of the iron that would be expected for building heights ranging from 10 m to 500 m. Given: Fe; m = 2 kg; T1 = 25oC; z1 = 150 m; z2 = 0 m Assume: Q = W = ?KE = 0; The iron is an incompressible substance with constant specific heats: c = 0.447 kJ/kg-K = 447 J/kg-K What will be an ideal response?
Because molds need no oxygen to live, they are generally found deep within the core of food
Indicate whether the statement is true or false
How many standard-size bricks are needed to build a single-wythe brick wall whose length is 36' and height is 18'.
What will be an ideal response?
Which type of glass has the higher coefficient of thermal expansion?
a. Ordinary glass b. Silica glass c. None of the above