Which of the following factors affect the amount of work needed to lift a heavy suitcase onto a high bed? Explain each answer The height of the bed
The mass of the suitcase
Whether the room is on the Earth or the Moon
Whether the suitcase is lifted straight up or on a diagonal

probably not if net force is zero

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.