Answer:
4
Explanation:
there are 4 complete wavelengths
Answer:
54%
Explanation:
We are given that
S.D=4.2 lb
Mean=
We have to find the percentage of household throw out at least 9 lb of paper a week.
Normal distribution formula :
We have a=9
%
Hence, the percentage of household throw out at least of paper a week=54%
Answer:
50 Ohms
Explanation:
Given that
the original resistance of the wire is 2 ohms, then
it is known that the equivalent resistance in a parallel circuit is
1/R(eq) = 1/R1 + 1/R2 + 1/R3 + 1/R4 + 1/R5.......+ 1/Rn
Giving that there are 5 pieces, then we stop at number 5.
Since R(eq) is 2, we substitute for that, and then we have
1/2 = 1/R + 1/R + 1/R + 1/R + 1/R
1/2 = 5/R
R = 5 * 2
R = 10 ohms
Since each R is 10 ohms, and the wire was cut into 5 pieces, we can then say that the original resistance of the wire is
R + R + R + R + R
10 + 10 + 10 + 10 + 10
total original resistance is 50 Ohms
Wait I don't see the question... Can you comment me in it so I can see? I think it's a glitch or something..