Athird class lever has a mechanical advantage of < 1. what is an example of a third class lever and why use it?
a) pulley; changes direction
b) baseball bat; increases velocity
c) car jack; increases the weight it can lift
d) wheel barrow; makes it easier to move a load

Choice B: baseball bat; increases velocity

Explanation:

I got this right on my test

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.

490 n

f=125n a=2.5m/s2