Answer:
Explanation:
The angular momentum of an object is given by:
where
m is the mass of the object
v is its velocity
r is the distance of the object from axis of rotation
Here we have:
m = 350 g = 0.35 kg is the mass of the ball
v = 9.0 m/s is the velocity
r = 3.0 m is the distance of the object from axis of rotation (if we take the ground as the centre of rotation)
Therefore, the angular momentum is:
Complete Question
A 10-cm-long thin glass rod uniformly charged to 8.00 nC and a 10-cm
long thin plastic rod uniformly charged to -8.00 nC are placed side by
side, 4.20 cm apart. What are the electric field strengths E_1 to E_3 at
distances 1.0 cm, 2.0 cm, and 3.0 cm from the glass rod along the line
connecting the midpoints of the two rods
a.) Specify the electric field strength E1
b.) Specify the electric field strength E2
c.) Specify the electric field strength E3
Answer:
Explanation:
From the question we are told that
The length of the thin glass is
The charge on the glass rod is
The length of the plastic rod is
The charge on the plastic rod is
The distance between the materials is
The various distances to obtain electric field of are
The objective of the solution is to obtain the electric field at distance
from the glass rod along the line connecting its mid point
Generally electric field of a charge rod at a distance of r the line dividing the rod into half is mathematically represented as
For the
The electric filed by the positively charge glass rod on the left side of the dividing line is mathematically represented as
The electric filed by the positively charge glass rod on the right side of the dividing line is mathematically represented as
The net electric field is,
Where k is know as the coulomb's constant with a constant value of
For the
The electric filed by the positively charge glass rod on the left side of the dividing line is mathematically represented as
The electric filed by the positively charge glass rod on the right side of the dividing line is mathematically represented as
The net electric field is,
Where k is know as the coulomb's constant with a constant value of
For the
The electric filed by the positively charge glass rod on the left side of the dividing line is mathematically represented as
The electric filed by the positively charge glass rod on the right side of the dividing line is mathematically represented as
The net electric field is,
Where k is know as the coulomb's constant with a constant value of