A simple Atwood's machine uses two masses, m1 and m2. Starting from rest, the speed of the two masses is 8.0 m/s at the end of 4.0 s. At that instant, the kinetic energy of the system is 60 J and each mass has moved a distance of 16.0 m. Determine the values of m1 and m2.

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.

pecialized keyboards

0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr

you get 2.3=1.21*\frac{a}2 or 4.6=1.21a or a=3.802 (b)

explanation: