A rectangular vessel measurements 5 cm by 15 cm. Ethanol of density p = 810 kg. m-3a) calculate is poured into the vessel to a depth of 5.5 cm [the density of water is 1000 kgm-3, atmospheric pressure is 101300 pa] i. the pressure due to the ethanol

iii the total pressure of the liquid on the base of the container

iii. the force ethanol exerts at the botton the tank

b) determine the relative density of ethanol​

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.

it would be c. predictability