Answer:
The answer to your question is the letter D. 2.5 N
Explanation:
The electrostatic force is the same in both directions,
If the electrostatic force on B due to A is 2.5 N, the magnitude of the electrostatic force on A due to B must be 2.5N.
Maybe the direction is different but the magnitude is the same.
Answer:
2.36 x 10^6 Hz
Explanation:
We know ;,
Iamp = 1.8mA
L = 0.45mH
VL = 12V
VL = IwL
VL = I x 2π x f x L
f = VL / (I x 2π x L)
f = 12 V/ (1.8mA x 2π x 0.45mH)
f = 12/(1.8x10^-3 x 2π x 0.45 x 10^-3)
f = 2.36 x 10^6 Hz
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
Answer:
Only electrons
Explanation:
When a current flows through a metal wire, the moving charges are electrons since electric current is the flow of electric charge in an electric circuit. This electric charge are therefore electrons.
