A child holds one end of a 33.0-meter long rope in her hand and moves it up-and-down to produce a sinusoidal wave by moving her
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Please find the figure attached below:
Answer:
a.Resistance of bulb==192 ohm
b.power consumed by bulb after motor disconnection=74.609 W
Explanation:
<u>a.Resistance of bulb=</u><u>=?</u>
As we know that
putting R as resistance of bulb i.e.
<u>b.power consumed by bulb after motor disconnection? </u>
from the figure we see that are in series so
current through their resistance is
Power consumed by bulb is
Answer:
E =
Explanation:
For this exercise let's use Gauss's law. The Gaussian surface that follows the symmetry of the charges is a sphere
Ф = ∫ E. dA =
the bold are vectors, the radii of the sphere and the electric field are parallel therefore the scalar product reduces to the algebraic product
Ф = ∫ E dA = \frac{x_{int} }{\epsilon_o}
E ∫ dA = \frac{x_{int} }{\epsilon_o}
E A = \frac{x_{int} }{\epsilon_o}
the area of a sphere is
A = 4π r²
the charge inside the sphere is q = + q
we substitute
E 4π r² = \frac{x }{\epsilon_o}
E =