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Question: A thin, horizontal, 20-cm-diameter copper plate is charged to 4.0 nC . Assume that the electrons are uniformly distributed on the surface
a) What is the strength of the electric field 0.1 mm above the center of the top surface of the plate?
b) What is the direction of the electric field 0.1 mm above the center of the top surface of the plate? (Away or toward)
c) What is the strength of the electric field at the plate's center of mass?
d) What is the strength of the electric field 0.1 mm below the center of the bottom surface of the plate?
e) What is the direction of the electric field 0.1 mm below the center of the bottom surface of the plate? (Away or toward plate)
Two identical +45.3 nC point charges A and B, with masses of 3.0*10^-9 kg each, are fixed in place with a distance of 2.54 cm between them. Calculate the speed of charge B when it has reached a distance of 3.68 cm away from charge A
A harmonic oscillator consists of a mass of 1g on a spring. It's frequency is 1Hz and the mass passes through the equilibrium position with a velocity of 10 cm/s. What is the order of magnitude of the quantum number associated with the energy of the ..
Professional baseball pitchers can deliver a pitch which can reach the blazing speed of 100 mph (miles per hour). how much kinetic energy does the ball have
The magnitude of a magnetic field a distance 2.0 um from a wire is 11.0*10^4 T. How much current is flowing through the wire
Two lenses, one converging with focal length 20.5cm and one diverging with focal length ?10.5cm , are placed 25.0?cm apart. Determine the magnification of the final image formed
A single mass m1 = 4 kg hangs from a spring in a motionless elevator. The spring is extended x = 12 cm from its unstretched length.
a flat ciruclar loop with radius r situation on the xy plane centered at the origin has a magnetic field at a point z
A sinusoidal voltage Δv = (100 V) sin (160t) is applied to a series RLC circuit with L =50 mH, C = 100 μF, and R = 38 Ω. What is the impedance of the circuit? What is the maximum current in the circuit?
two carpenters are hammering at the same time each at a different hammering frequency. the hammering frequency is the
A mass m of 0.16 kg is attached to the end of a spring andreleased from rest at t = 0s from an extended positionxmax = 32 cm. Find themaximum speed of the mass
A 292 kg motorcycle is accelerating up along a ramp that isinclined 25.0° above thehorizontal. Find the magnitude of themotorcycle's acceleration
a simple harmonic oscillator with frequency f 2 hz has initial conditions x0 0.76m and v0 0.31 ms. calculate the
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