Answer with Explanation:
We are given that
x=-2.6 cm to x=2.6 cm
Linear charge density=
Length of wire=
Length of wire=
1 m=100 cm
We know that
a.Linear charge density=
Where Total charge =Q
Length=L
Total charge,Q=
Using the formula
Total charge,Q=
b.y=4 cm=
1 m=100 cm
Electric field on the y-axis is given by
Using the formula
c.y=12 cm=
Using the formula
Density=mass/volume. if you know any 2 of these variables, you can figure out the missing one
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Answer:
compass needle normally points toward Earth's magnetic pole, which is near the North Pole. Which best explains why the
eedle moves away from the pole when it comes close to a current-carrying wire?
Current within the wire weakens the magnetic force of the pole.
Magnetism surrounding the wire weakens the magnetic force of the nole
Explanation:
Answer:
0.5sec
Explanation:
Parameters
Height(H) =20m
Initial velocity(u) = 5m/s
Acceleration due to gravity(g) =10m/s^2
Method one
Using the second law of motion
H=ut-1/2gt^2
20=5t-1/2×10×t^2
20=5t-5t^2
dh/dt = 5-10t
where any constant is zero therefore the 20 is zero
5-10t=0
Collect like terms
-10t= -5
t=1/2 = 0.5sec
2nd method
Parameters
Height(H) =20m
Initial velocity(u) = 5m/s
Acceleration due to gravity(g) =10m/s^2
Using the time taken formula
t=u/g
t=5/10
t=0.5sec