Find the annual heat loss if u-value of windows is given
The building has 25 windows each with 8 ft2 area. The U-value is 0.4 Btu/(hr ft2°F). In the region with 7000 heating degree days annually, find the annual heat loss.
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Derive from part (i) that for all n in N, there exist n consecutive positive integers which are not prime, that is, set of prime integers has arbitrarily large gaps.
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he air conditioning system requires to bring air at 73 °F and 80% relative humidity (17 g water/kg air is saturated) to 55 °F at 100 % relative humidity (10 g water/kg air is saturated) at the input rate of 2 m3/s.
An automobile manufacturer would like to know what proportion of its customers are not satisfied with the service provided by the local dealer. The customer relations department will survey a random sample of customers and compute a 99% confidence
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Montarello and Martins found that fifth-grade students completed more mathematics problems correctly when simple problems were mixed in with their regular assignments. To further discover this phenomenon, assume that the researcher chooses a stand
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