A hot-air balloon has a volume of 2800 m3m3 . The balloon fabric (the envelope) weighs 840 NN . The basket with gear and full propane tanks weighs 1500 NN . Part A If the balloon can barely lift an additional 2800 NN of passengers, breakfast, and champagne when the outside air density is 1.23 kg/m3kg/m3, what is the average density of the heated gases in the envelope

answer: at 24 february, 2014 the population gets twice of its initial population.

explanation:

since we have given that

the population for alpha city, t years after january 1, 2004 is given as

first we find out the initial population, i.e. t=0,

so, our quadratic equation becomes,

according to question, we have said that if the population has twice its initial population, then it becomes

so, time taken to reach this above mentioned population is given by

now, we know that time can't be negative so, we take t=9.149 years.

hence, at 24 february, 2014 the population gets twice of its initial population.

area of focus

connect the batteries in series and hope

answer is slate

hope this