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Two equipotential surfaces have a potential of -10V and 90V respectively, what is the difference in potential between these surfaces?
A capacitor has a capacitance of 4.50 μF. What charge would be stored if the potential difference is 6V?
A charge is released from rest in a
uniform electric field with a magnitude of 4.5 × 103 V/m. The charge moves 350 cm as aresult. What is the potential difference between the charge’s initial and final positions?
Three charged particles are placed so that each particle is at the corner of a triangle that lies in the x-y plane. The charge at the origin is –3.0 μC, the charge at x = 6.0 cm on the x-axis is+4.0 μC, and the charge at y = 4.0 cm on the y-axis is +2.5 μC. What is the net electric force on the –3.0 μC charge?
In 1955, a water bore that was 2231 m deep was drilled in Montana. Consider two
charges, q2 = 5.60 mC and q1, separated by a distance equal to the depth of the well. If
a third charge, q3 = 1.998 C, is placed 888 m from q2 and is between q2 and q1, this
third charge will be in equilibrium. What is the value of q1?
A charge is released from rest in a
uniform electric field with a magnitude of 4.5 × 10^3 V/m. The charge moves 350 cm as a
result. What is the potential difference between the charge’s initial and final positions?
Producing an electric spark in a factory furnace requires an electric field of 9.5 × 106 V/m. The
gap between electrodes in the ignition device is 8.5 mm. What minimum potential difference
must be supplied by the ignition device to start the furnace?
A charge q1 of +8.00 × 10−9 C and a charge q2 of +4.00 × 10−9 C are separated by a distance
of 60.0 cm. What is the equilibrium position for a third charge of
–25.0 × 10−9 C?
2-1. Compute rL for the following cases if v0 is negligible:
(a) A 10-keV electron in the earth's magnetic field of 5 x 10-5 T.
(b)· A solar wind proton with streaming velocity 300 km/sec, B = 5 x 10-9 T.
(c) A 1-keV He+ ion in the solar atmosphere near a sunspot, where B =
5 X 10-2 T.
(d) A 3.5-MeV He++ ash particle in an 8-T DT fusion reactor.
A 5kg block was placed on an inclined plane(50 degrees with respect to the vertical).Forces A is at angle C with respect to the horizontal. Force B is parallel with the incline.The coefficients of static and kenetic friction are 0.3 and 0.2 respectively.
A=197KN
B=49 KN
C=7 degrees
A.Determine if there is motion and its direction
The block is initially 5m from the ground (vertically).Based on your answer in "A",if block will be moved 2m vertically from its original elevation (relative to the incline and depending on the direction of motion)in a span of 5 seconds.
How much work was done?
