Impact of the low atmospheric pressure

a. a balloon is filled at sea level on a spring day (temperature 200c) to a volume of 0.500 m3 and then brought atop of mount everest the same day (temperature -200c). how does its volume change? what is the percent change?
b. what is the air density atop of mount everest on a summer day (at a pressure of 3.30 x 104 n/m2 and a temperature of -190c)? how is it different from the density of air in standard conditions (at a pressure of 1.01 x 105n/m2 and a temperature of 200 c the air density is1.28 kg/m3). the molar mass of air is 28.8 g/mole.

The owners of backstreets italian restaurant are considering starting a delivery service forpizza and their other italian dishes in the small college town where they are located. theycan purchase a used delivery van and have it painted with their name and logo for $21,500.they can hire part-time drivers who will work in the evenings from 5 p. m. to 10 p. m. for$8 per hour. the drivers are mostly college students who study at the restaurant when theyare not making deliveries. during the day, there are so few deliveries that the regular employeescan handle them. the owners estimate that the van will last 5 years (365 days per year)before it has to be replaced and that each delivery will cost about $1.35 in gas and othermaintenance costs (including tires, oil, scheduled service, they also estimate that onaverage each delivery order will cost $15 for direct labor and ingredients to prepare andpackage, and will generate $34 in revenue. a. how many delivery orders must backstreets make each month in order for the service to break even? b. the owners believe that if they have approximately the break-even number of deliveries during the week, they will at least double that number on fridays, saturdays, and sundays. if that’s the case, how much profit will they make, at a minimum, from their delivery service each month (4 weeks per month)?

Look at this check register. calculate the current balance. check date transaction (+) deposit balance 5/1 5/3 $82.92 debit 8.00 78.24 005 monthly fee phone bill paycheck 1 125.00 5/15 5/17 5/20 atm 40.00 56.50 006 t ennis lessons the current balance is?

The rybczynski theorem describes: (a) how commodity price changes influence real factor rewards (b) how commodity price changes influence relative factor rewards. (c) how changes in factor endowments cause changes in commodity outputs. (d) how trade leads to factor price equalization.