Question:Q1 = +2.1µC and is located at (5, 0), Q2
= -8.4µC and is located at...
Question
Q1 = +2.1µC and is located at (5, 0), Q2
= -8.4µC and is located at...
Q_{1} = +2.1µC and is located at (5, 0), Q_{2}
= -8.4µC and is located at (0, -7), and Q_{3} = +6.5 µC and
is located at (-8, 6). A ball with a charge of Q_{B} =
+4.2µC is placed at the origin (0,0). (units of distance measured
in meters)
Sketch the setup and make an FBD for the ball.
Find the force from Q_{1} on the ball in component
form?
Find the force from Q_{2} on the ball in component
form?
Find the force from Q_{3} on the ball in component
form?
What is the magnitude of the net force acting on the ball?
In what direction is the net force on the ball acting? (give an
answer as an angle measured CCW from the +x axis)
A fourth charge, Q_{4} = +5µC, is placed such that the
ball is in equilibrium. What must the coordinates of Q_{4}
be?
A 15kg block, with charge Q_{1} = +2mC, is suspended in
equilibrium d meters directly above a second charge, Q_{2}
= +5µC, in the earth’s gravity (g = 9.81m/s^{2}). (assume
constant gravity)
Draw and Label the Free Body Diagram of Q_{1} in the
space below.
What is the magnitude and direction of the force of gravity on
Q_{1}?
What is the magnitude and direction of the electric force from
Q_{2} on Q_{1}?
In what directions (if any) is this configuration stable? In
which directions (if any) is this configuration unstable? (Hint –
think about how the forces on Q_{1} change when
perturbed)
Find the length of d, the distance between Q_{1} and
Q_{2}.
The charge on Q_{1} is doubled, find the new distance
between Q_{1} and Q_{2}. What if the charge on
Q_{1} was halved instead?
Four charges are located along the x-axis with Q_{0} at
x=0, Q_{1} at x=1 m, Q_{2} at x=2 m, and
Q_{3} at x=3 m.
If Q_{0}=16q, Q_{2}=4q, and Q_{3}=2q
what must the charge of Q_{1} be, in terms of q, for the
net force on Q_{2} to be zero?
If q=1.2 µC what would the net force on Q_{1}
A fourth charge, Q_{4}= +24 µC, is placed along the
x-axis. Where must Q_{4} be located if the net force on
Q_{1} is now zero?
Four charges of equal magnitude, q = +2.0 µC, are placed at the
corners of a square with a side length of 4 meters located in the
xy-plane.
A small ball of known charge +3 µC and an unknown mass is
placed 2 meters above the center of the square, what is the total
force on the ball from the charges?
If the ball is in equilibrium where it was placed and we assume
standard earth gravity, 9.8 m/s^{2}, what must the mass of
the ball be?