Social Studies, 26.02.2020 18:23, enicole10
Let us assume that the winter consists of 150 days in which the outside temperature is 0∘∘C. This will give the typical number of "heating degree days" observed in a winter along the northeastern US seaboard. (The cumulative number of heating degree days is given daily by the National Weather Service and is used by oil companies to determine when they should fill the tanks of their customers.) Given that a gallon (3.4 kgkg) of oil liberates Qg=1.4×108JQg=1.4×108J when burned, how much oil will be needed to supply the heat lost by conduction from this house over a winter? Assume that the heating system is 75% efficient. Give your answer numerically in gallons to two significant figures.
Answers: 2
Social Studies, 23.06.2019 16:00, merzedes
Which of these is an example of physical systems impacting the environment? a flood causes erosion and loss of shoreline. people fill a lake before building houses near it. an earthquake causes a building to fall. a native tribe considers a volcano to be sacred.
Answers: 1
Let us assume that the winter consists of 150 days in which the outside temperature is 0∘∘C. This wi...
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