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.

1  2  3  4  5  6  7  8  9  10time remaining59: 30in  the dark game, how does the author develop the central idea that elizabeth van lew was a spymaster during the civil war? 1 2 3 4 5 6 7 8 9 10time remaining59: 30in the dark game, how does the author develop the central idea that elizabeth van lew was a spymaster during the civil war?

For each of the following users of financial accounting information and managerial accounting information, specify whether the user would primarily use financial accounting information or managerial accounting information or both: 1. sec examiner 2. bookkeeping department 3. division controller 4. external auditor (public accounting firm) 5. loan officer at the company's bank 6. state tax agency auditor 7. board of directors 8. manager of the service department 9. wall street analyst 10. internal auditor 11. potential investors 12, current stockholders 13. reporter from the wall street journal 14. regional division managers

1. revising for conciseness - eliminating flabby expressions,limiting long lead-ins, and dropping unnecessary fillerstime is money in any business environment. people want information communicated quickly and clearly. to make your writing more concise and understandable, avoid flabby expressions, long lead-ins, and unnecessary fillers. your audience will appreciate your brevity.1. if your writing contains a flabby expression like in view of the fact that, replace it with the word because / although / probably .for each of the following two sentences, choose the best revision.2. i am sending you this letter to inform you that we have experienced an unexpected surprise within our expense sheet, but we are positively certain we will solve it.1) we need to inform you that we have experienced an unexpected surprise with our expense sheet, but we are midway to an end result.2) we have identified a problem with our expense sheet, but we will solve it.3) i am sending you this letter to inform you that we have a problem with our expense sheet, but we are positively certain we have a solution.3. it is the user who should contact the center.1) everyone knows that it is the user who should contact the center.2) the user should contact the center.3) if there is a problem, the user should contact the center.read the following passage, and then answer the question.[1] you scheduled seven conference calls for this morning between 10 and 11 a.m. [2] generally, the company limits the number of conference calls to three per hour. [3] i’m letting you know that in the future, we should be more careful about scheduling.4. which revision limits the long lead-in in sentence 3? 1) in the future, we should be more careful about scheduling.2) i’m letting you know so that in the future we are more careful about scheduling calls.3) so that you know in the future, we should be more careful about scheduling.