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A parallel-plate capacitor is made from two aluminum-foilsheets, each 4.0 cm wide and 5.00 mlong. Between the sheets is a Teflon strip of the same width andlength that is 0.030 mm thick. What is the capacitance of this capacitor? (The dielectric constant ofTeflon is 2.1.)
µF
Object A, which has been charged to + 16nC , is at the origin. Object B, which has been charged to ? 20nC , is at (x,y)=(0.0cm,2.0cm). What is the magnitude of the electric force on object A
A horizontal beam of electrons initially moving at 4.2 107 m/s is deflected vertically by the vertical electric field between oppositely charged parallel plates, What is the charge per unit area on the plates
A sinusoidal voltage ?v = (75 V) sin (100t) is applied to a series RLC circuit with L = 50 mH, C = 160 ?F, and R = 34 ?. What is the impedance of the circuit
Suppose wire A and wire B are made of different metals, and are subjected to the same electric field in two different circuits. How many electrons enter wire B every second
A fan blade rotates with angular velocity given by Wz(t)=r-B t^2 For the next two parts assume that the constants and are defined as follows: r= 5.25 rad/s B= 0.835 rad/s^3 -------------------------- A)Calculate the instantaneous angular acceleration..
An ion with charge q+ and radius 1*10^-10m is present in 1 M concentration in H2O. At equilibrium, what is the concentration in the membrane?
The kinetic energy of a 5.0 kg bowling ball just before it hits the ground is 455.0 J. determine from what height was the ball thrown
A block of mass m1 = 6.67 kg on a frictionless plane inclined at angle ? = 33.6° is connected by a cord over a massless, What is the acceleration of the hanging block
A 500 kg cannon fires a 4.0 kg projectile with a velocity of 500 m/s relative to the ground. What is the recoil speed of the cannon
A firehouse shoots water at a speed of 50 m/s from a ground level at an angle of 60 above the horizontal. how far above the ground does it hit the building
A public transportation bus makes the position-time graph over a 5.00 hour interval shown below. What is the average velocity (magnitude and direction) of the bus
Flux and nonconducting shells. A charged particle is suspended at the center of two concentric spherical shells that are very thin , What is the charge of the central particle
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