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Two equal charges are located 1m from each other. The force acting between them is 2N. How many Coulombs is each charge?
In a series of 2ohms,4ohms,3ohms,2ohms,4ohms and 3voltage find the current in the circuit
•Q2. the position of a particle moving along the x-axis is given by
x= 7.8 + 9.2t -2.1 t3
Where x is in meters and t is in seconds.
a). What is the velocity at t=3.5s?
b). Is the velocity constant or continuous?
c). What is the displacement of the particle after 3.5 seconds?
d). Sketch i. displacement - time graph
ii. Velocity – time graph
iii. Acceleration-time graph
For the particle motion within the time o ≤ t ≤ 6s
If two charges are fixed such that the distance r between them does not change, but the charge q1 is decreased by half, what is the new force?
two charges are not changed but they are moved twice farther than the original distance r, what becomes of the new electric force?
Two charges q and Q are separated by a distance R. If both charges are doubled to 2q and 2Q but the distance R remains the same, the new electric force is _____ the old force.
1. Three point charged particles are arranged in a line as shown in the figure below. Charge A = -5 µC, charge B = +10 µC, and charge C = -12 µC. Calculate the net electrostatic force on particle B due to the other two charges.
How far apart are two charges , one of magnitude is 3 uC and the other magnitude is 5uC if the force between them is 20N
If two electrons are 1.50 x 10^-10 m each from a proton, find the magnitude and direction of the net electric force they will exert on the proton.
Two small spheres spaced apart have equal charge. How many electrons must be present on each sphere if the magnitude of the force of repulsion between them is 4.57 x 10^-21 N?
Two equal positive charges q1 = q2 = 4.0 μC are located at x = 0, y = 0.30 m, x = 0, y = -0.30 m and respectively. What are the magnitude and direction of the total electric force that q1 and q2 exert on a third charge at Q = 4.0 μC x = 0.40 m, y = 0?
