ElectricPavlov

6012.37 = 3725 (1 + i/n)^n        To solve this you will have to either try and try again as guest has suggested.....or graph it  or go to Wolfram alpha....

I graphed it to find n = 1 time per year

WolframAlpha returned the same value   n= 1 times/yr

This equaton gets used over and over...it would be good te commit it to memory

FV =PV (1+i)^n      Fv = future value  PV= present value   i= interest in decimal PER PERIOD  n= PERIODS
 

the period for this equaton is twice per year x 11 years = 22 periods

interest per period = 2.5 annual / 2  = 1.25

675.54 =  PV(1.0125)^22

PV = ~~ $ 514.   initial deposit 11 years ago

RE-thinking this a bit....

T = a * (2/3 mr^2) = .3 * (2/3 (.625)(.23^2)) = .0066125 N-m   BUT I do not think this is correct either as your question gives acceleration as  .3  m/s^2  which is a LINEAR acceleration......so:

  Are we to calculate the angular acceleration from THAT or were you actually given ANGULAR acceleration ????

Let me know and I will continue re-learning this stuff !   (it has been a while)....keep me posted....

See previous post and discussion.....Hope it is correct...there are no guarantees   LOL

Six is to 24 in as 5 is to its width

6/24 = 5/x

x = 5 x 24/6 =  20 inches = width

" When a torque is applied to an object it begins to rotate with an acceleration inversely proportional to its moment of inertia."

SO its moment of inertia ( 2/3 mr^2 [for a thin walled sphere]) would have been used to determine the acceleration...which was already computed (if you will) and given to you in the question as 0.3 m/s^2....so ...yah, I guess it is not needed unless you used it to calculate the acceleration you gave in your question.

Please let me know if you find something here to be in error....Thanx  !

F= ma      and torque = f x d     where d= the radius of 0.23 m

                                   = ma x r

                                   =.625 (.3)(.23) = .0431 N-m                           

2/12 are hawk fans    10/12 are cyclone fans

(10/12 -2/12)(500) = number of more cyclone fans than hawks = 8/12 x 500 =~ 333 more cyclone fans than hawk fans

380 = 2 x 190

=2 x 2 x 95

= 2 x 2 x 5 x 19

1 1/2  / (2)  =  3/2  / (2/1) =  3/2 x 1/2 = 3/4