The roof of a house consists of a 0.8-ft-thick concrete slab (k 1.1 btu/h-ft-of) that is 25 ft wide and 35 ft long. the emissivity of the outer surface of the roof is 0.8, and the convection heat transfer coefficient on that surface is estimated to be 3.2 btu/h-ft2-°f. on a clear winter night, the ambient air is reported to be at 50°f, while the night sky temperature for radiation heat transfer is 310 r. if the outer surface temperature of the roof is t2 38°f, (a) determine the inner surface temperature of the roof and (b) the rate of heat loss through the roof when steady operating conditions are reached.

Chipotle mexican grill, the american mexican food chain restaurant, opened its first restaurant in the united states in 1993. in 2010, chipotle opened its first restaurant in the united kingdom in london on charing cross. by late may 2013, the company had 6 restaurants in london, but they have not been doing well even though the british have taken a liking to mexican food (boyle, 2013). why has this successful u.s. chain not seen the same success overseas? if you were chipotle's ceo, how would you fix this situation? what is an alternative means of venturing outside of its domestic markets that may allow for a competitive advantage? then, pick a company that has not yet expanded overseas, or if it has expanded, suggest a different strategy for entrance into an overseas market that you feel would be more strategic for the company. research its rivals in the global marketplace and market conditions in the overseas market you are targeting. justify your recommended entry strategy based on these industry and market conditions.

Fanning company is considering the addition of a new product to its cosmetics line. the company has three distinctly different options: a skin cream, a bath oil, or a hair coloring gel. relevant information and budgeted annual income statements for each of the products follow. skin cream bath oil color gel budgeted sales in units (a) 110,000 190,000 70,000 expected sales price (b) $8 $4 $11 variable costs per unit (c) $2 $2 $7 income statements sales revenue (a × b) $880,000 $760,000 $770,000 variable costs (a × c) (220,000) (380,000) (490,000) contribution margin 660,000 380,000 280,000 fixed costs (432,000) (240,000) (76,000) net income $228,000 $140,000 $204,000 required: (a) determine the margin of safety as a percentage for each product. (b) prepare revised income statements for each product, assuming a 20 percent increase in the budgeted sales volume. (c) for each product, determine the percentage change in net income that results from the 20 percent increase in sales. (d) assuming that management is pessimistic and risk averse, which product should the company add to its cosmetics line? (e) assuming that management is optimistic and risk aggressive, which product should the company add to its cosmetics line?

The market demand curve for a popular teen magazine is given by q = 80 - 10p where p is the magazine price in dollars per issue and q is the weekly magazine circulation in units of 10,000. if the circulation is 400,000 per week at the current price, what is the consumer surplus for a teen reader with maximum willingness to pay of $3 per issue?