Checking formula rearrangements for P=W/t, e=IR+Ir, x=a/y, F=ma

  • Thread starter Thread starter faisal
  • Start date Start date
  • Tags Tags
    Formulas
Join the discussion
Registration is free. Start your own thread to ask a follow-up.
Sign up Log in
2 replies · 3K views
faisal
Messages
46
Reaction score
0
can u just check if these questions are correct.
a) P=W/t for t
answer t=w/p
b)e=IR+Ir for I
ANSWER, I=R/e+r/e
c) x=a/y for y
ANSWER-y=a/x
d)F=ma for a
answer F/m=a
 
Physics news on Phys.org

Discussion

b) should be : I = e/(R + r)
c) should be : y = a/x
regards
marlon
 
Expressed step by step for clarity the solution to (b) is as follows:

e = IR + Ir
e = I(R + r)
I = e/(R +r)