Recent content by Matt512

1. ( Repeat until ) Since the until condition will still be false , it will go back up and repeats itself. 1. I think it will re execute the sum =0 , i = 1 , so i should put those two at the top and the while <>i after

Homework Statement 1.Rewrite this algorithm using a repeat until loop and then with a while loop.[/B] Start sum=0 Display "Input value n" Input n FOR( i=1 , i <=n , i+1 ) Input a value sum=sum+value ENDFOR Output sum Stop I have some doubts if i have done the...

Thanks :)

well for v and a i got the correct answer by using the cos equation then when you derive the equation one should be cos and the other sin , for the v and a right? and thd minus sign is it necessary to put??

Thanks very much for you help :)

so its A w^2 cos wt ?

Well using v=dx/dt = A w cos wt i get 0.026 ms What formulae should i use for the acceleration ? Is it the same principle as for the speed ?

Well if i choose X= A sin wt then v=dx/dt = A w cos wt which is what i want if i choose x = A cos wt it would be the inverse right ?

I have 1 question When do you know that you have to use either A w cos wt or A w sin wt ?

Ah i see Yeah the question was confusing me xD Well x=Psin(Qt) you compare it to x=Asinwt p will be equal to 0.05 and w(Q) will be π/6 right ?

Its still not clear in my head :( Can you give me an example of how to write position as a function of time and where to take the max speed ? I am still trying to do the part (a) , when i finish i will do the remaining parts

if i use the equation A w sin wt i should replace t with what ?

Homework Statement A particle moves with simple harmonic motion in a straight line with amplitude 0.05 m and the period 12 s.Find (a) the maximum speed , (b) the maximum acceleration of the particle.Write down the values of the constants P and Q in the equation x/m = P sin [Q)(t/s)] Homework...

Well i can calculate the power loss by using p=I2R right or p=V2/R

Power= 10MW P.D =10KV I = p/v = (106)/(103)=1000A Well the answer represents the current at the factory ?