You drive your car 2 km to the gas station, 4 km to the shopping mall to let your mother off, and 4.5 km back home. The trip takes 20 min What is your VELOCITY in m/s? NOT average speed ik someone asked this on here

Answers:

-9 m/s

-3 m/s

0 m/s

+4 m/s

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.

c) up is the direction the magnetic force is acting on the charge.

electric field is a function of 1/r^2

yes, the force per unit charge for a point charge is inverse square law.