How many cubic yards to the nearest tenth of concrete are needed for a residential walkway 30' 6" long, 4' wide, and 4" thick.
What will be an ideal response?
1.5
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for an insulated container that changes in temperature along with the water and has a heat capacity equivalent to 5 kg of water. Work the problem with:
(a) The water and container as the system. (b) The water alone as the system.
A nonconducting container filled with 25 kg of water at 20°C is fitted with a stirrer, which is made to turn by gravity acting on a weight of mass 35 kg. The weight falls slowly through a distance of 5 m in driving the stirrer. Assuming that all work done on the weight is transferred to the water and that the local acceleration of gravity is ,
determine:
(a) The amount of work done on the water.
(b) The internal energy change of the water.
(c) The final temperature of the water, for which 
(d) The amount of heat that must be removed from the water to return it to its initial temperature.
(e) The total energy change of the universe because of (1) the process of lowering the weight, (2) the process of cooling the water back to its initial temperature, and (3) both processes together.
Which parties in a construction contract can terminate for convenience?
What will be an ideal response?
The structural design of a greenhouse must provide safety from ____________________,
____________________, and ____________________ damage.
Fill in the blank(s) with the appropriate word(s).Plastigage is commonly used to measure crankshaft endplay.
Answer the following statement true (T) or false (F)