Explanation:
(a) From E=
r
2
k
e
Q
Q=
k
e
Er
2
=
(8.99×10
9
N⋅m
2
/C
2
)
(8.90×10
2
N/C)(0.750m)
2
=5.57×10
−8
C
But Q is negative since
E
→
points inward, so
Q=−5.57×10
−8
C=−55.7nC
(b) The negatve charge has a spherically symmetric charge distribution, concentric with the spherical shell
The following expression is applicable:
Max. inductor energy = Max. capacitor energy
Where;
Max. inductor energy = LI^2/2, with L = 20.0 mH, I = 0.400 A
Max. capacitor energy = CV_max^2/2, C = 0.150 micro Faraday, V_max = Max. potential difference
Substituting;
LI^2/2 = CV^2/2
LI^2 = CV^2
V^2 = (LI^2)/C
V_max = Sqrt [(LI^2)/C] = Sqrt [(20*10^-3*0.4^2)/(0.15*10^-6)] = 146.06 V
The left end of the string is given as y = - 0.100 sin (3.14t )
<h3>How to find the sinusoidal wave</h3>
We would have to create an equation of this form
The wave function equation
y = A sin ( π*x - ω* t )
When we put in the values that we have in the equation
y = 0.100 sin ( 3.14 x - 3.14 t )
Due to the fact that it is the left end of the string, the value that we would have for x is going to be 0, hence we would have
y = 0.100 sin (3.14 * (0) - 3.14t )
Then y would be 0.100 sin (- 3.14t )
This would give us the final equation
y = - 0.100 sin (3.14t )
Hence we would have the left end of the string as y = - 0.100 sin (3.14t )
Read more on sinusoidal wave here:
brainly.com/question/20912200
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Answer:
Summer begins in the Northern Hemisphere on June 20 or 21 when the North Pole is tilted a full 23.5° toward the sun. On this day, the Northern Hemisphere has the most hours of daylight, while the Southern Hemisphere has the least hours of daylight.
Explanation:
