Two charges q1 = −3.20 nC and q2 = +8.36 nC are at a distance of 1.43 µm from each other. q1 is fixed at its location while q2 is released from rest. (b) The charge q2 has a mass m2 = 7.85 µg. What is its speed when it is 0.340 µm from q1?
using energy conservation
change in electric potential energy of q2 = gain in KE
k q1 q2 ( 1/ r1 - 1/ r2) = 0.5 m v^2
9*10^9* 3.2* 8.36*10^-18* ( 1/ (0.34*10^-6) - 1 / ( 1.43*10^-6) ) = 0.5 * 7.85*10^-9* v^2
v = 11727 m/s
=========
Comment in case any doubt, will reply for sure.. Goodluck
Iwo particles, with charges of q1-90.U nC and q2 =-90.0 nC, are placed at the points with coordinates (0, 12.00 cm) and (0,-12.00 cm) as shown in the figure below. A particle with charge q3-45.0 nC is located at the origin. (a) Flnd the electric potentlal energy of the conflguratlon of the three fixed charges (b) A fourth particle, with a mass of 2.28 x 10-13 ka and a charge of q4 = 180.0 nC, is released from rest at...
Two charges q1 (-40uC) and q2 (50uC) are stationary and separated by an initial distance of 120 cm. Charge q2 is released from rest. What distance from q1 is the speed of q2 447m/s? Assume that q2 has a mass of 5.7x10^-4 kg?
Two charges, Q1=-9.6 μC and Q2=-5.8 nC with masses m1=973.6 gram and m2=8.0 gram were located 5.6 cm from each other. Charge q1 was held in place, but charge Q2 was released and allowed to move. How fast will charge Q2 be moving when the distance between the charges has increased to 81.0 cm?
Three charged particles of q1 = 30.0 nC, q2 = -30.0 nc, and q3 = 15.0 nC are placed on the y-axis, as shown in the figure. Charge q1 has the coordinates (0, 12.0 cm), q2 has the coordinates (0, -12.0 cm), and q3 is located at the origin. (a) Find the electric potential energy in J) of the configuration of the three fixed charges. (b) A fourth particle, with a mass of 1.74 x 10-13 kg and a charge of q4 =...
Two charges Q1 = 15 nC and Q2 = 21 nC are in rest on the horizontal axis. The distance between the charges is 1 m. What is the value of the magnetic field at the point between the charges which is 0.44 m away from charge Q1? Express the answer as a whole number.
(6%) Problem 10: Two point charges Q1-Q2-+1.8 nC are fixed symmetrically on the x-axis at x = ±0.062 m. A point particle of charge Q3 = +4.4 μ.C and mass m 13 mg can move freely along the y-axis If the particle on the y-axis is released from rest at y-0.016 m, what will be its speed, in meters per second, when it reaches y2 0079 m? Consider electric forces only.
Two stationary positive point charges, charge 1 of magnitude 3.20 nC and charge 2 of magnitude 1.90 nC , are separated by a distance of 35.0 cm . An electron is released from rest at the point midway between the two charges, and it moves along the line connecting the two charges. What is the speed vfinal of the electron when it is 10.0 cm from charge 1? Express your answer in meters per second.
A positive charge Q1 =+ 117 nC with mass M = 17 mg is released form rest at a distance r 1 = 6 mm from a fixed positive charge Q2=+ 311 nC, the speed of Q1 when it is at r2= 30 mm from Q2 is close to (in m/s): O 13.67 O 45.89 O 21.87 105.41 O 71.27
Q1. The charges in the figure above both have a magnitude of 6.20 nC, and the distance d is 5.40 cm. What is the magnitude of the electric field at the dot? Q2.In the figure above, charge A is -2.35 nC, charge B is 4.70 nC, and charge C is 2.35 nC. If x = 4.00 cm and y = 8.00 cm, what is the electric field at the dot? Q3.A -1.00 nC charge of mass 1.10×10-6 kg is released...
Two point charges are fixed 4.0 cm apart from each other. Their charges are Q1 = Q2 = 6.5µC and their masses are m1 = 3.5 mg and m2 = 2.5 mg. (a) If Q1 is released from rest, what will its speed be after a very long time? (b) If both charges are released from rest at the same time, what will be the speed of Q1 after a very long time?