Scientists believe that bees use the ____________________ to orient their flight and communicate this orientation to worker bees in the hive.
Fill in the blank(s) with the appropriate word(s).
sun
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What device is used in a home or business to capture heat from or release heat into the ground?
What will be an ideal response?
When the dry-bulb and wet-bulb temperatures are the same, the relative humidity of the air is ____________________%.
Fill in the blank(s) with the appropriate word(s).
Using Figures 22-2 and 22-3, determine the cost for a 250-foot by 200-foot warehouse. The exterior walls are to be concrete block, which are used as bearing walls. The warehouse is 20 feet high. Include ten 7-foot by 8-foot dock levelers in the costs.
What will be an ideal response?
Some water-source heat pumps contain a separate coaxial coil for heating domestic hot water. The heat for the domestic hot water comes from:
A) De-superheating the hot gas leaving the compressor. B) Subcooling the liquid leaving the condenser. C) A submersion-style electric heater. D) Using the water heating coil instead of the loop in cooling.