When grocery shopping, the mass of the cart changes as you start to fill up your cart. How does the change in mass of your cart
1 answer:
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Answer:
The electric field at x = 3L is 166.67 N/C
Solution:
As per the question:
The uniform line charge density on the x-axis for x, 0< x< L is
Total charge, Q = 7 nC =
At x = 2L,
Electric field,
Coulomb constant, K =
Now, we know that:
Also the line charge density:
Thus
Q =
Now, for small element:
Integrating both the sides from x = L to x = 2L
Similarly,
For the field in between the range 2L< x < 3L:
Now,
If at x = 2L,
Then at x = 3L:
Answer:
142.7650889
Explanation:
I think the answer above is correct. So to find the velocity of the wave you can do: frequency*wavelength = velocity
in your case, the velocity is equal to 403.5m/s
so we know that the 403.52 is the total velocity of the wave
and the equation: velocity at 0 degrees Celsius * where T represents temperature in Kelvins = veloctity
so we set 403.52 = 327* and solve for T
T will then equal the degree in Kelvins
so to convert from Kelvins to degrees celsius you subtract 273 from the Kelvins value and you are left with the degrees in Celsius which equals 142.7650889 degrees Celsius