24
the first law of thermodynamics states that △e = q-w. is this also a statement of the principle of conversation of energy?
a. the heat that flows into the system is transformed into work and a change in internal energy
b. the energy that flows into the system is transformed into heat and work
c. the work that is done by the piston is transformed into heat and a change in internal energy
d. a change in internal energy causes work to be done and heat to flow into the system

the electric field is a “force field” around a charged object that illustrates the direction the electric force would push an imaginary 

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.