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A Capacitor is constructed with an area A=1.0cm2, a plate seperation d=1.0mm and a dielectric with K=10.
A) Suppose you were to disconnnect the battery (without losing any of the charge on the plates) and then remove the dielectric medium. What would be the new voltage across the plates?
B) Suppose a negative charge were placed next to the negative charged plate of the capacitor. What velocity will the particle gain by the time it strikes the positive plate?
a loaded cart has a total mass of 227kg.if a 312n force acting at an angle of 30degree to the ground is applied. how much work is done in moving the cart 15meters?
The volume control on a surround-sound amplifier is adjusted so the sound intensity level at the listening position increases from 21 to 59 dB. What is the ratio of the final sound intensity to the original sound intensity?
If the coefficient of kinetic friction between the box and the roof is 0.55, with what speed must you push the box to have it gently come to rest right at the edge of the roof.
Of the charge Q initially on a tiny sphere, a portion q is to be transferred to a second, For what value of q/Q>0.5 will the electrostatic force between the two parts have 1/2 of the maximum possible value
Assume we have an infinitely long wire carrying a current of 2-A. It is bent into an L-shape extending into positive infinities along the x- and y- axes. Find out the magnitude of the magnetic field at a point P with coordinates (0.3 m, 0.3 m).
A boy in a moving bus at +6 m/s observes a car moving at -3 m/s. What is the actual velocity of the car with respect to the bus?
The deflection plates in an oscilloscope are 10 cm by 2 cm with a gap distance of 1 mm. A 100 volt potential difference is suddenly applied to the initially uncharged plates through a 950 ohm resistor in series with the deflection plates.
A loudspeaker of mass 25 {rm kg} is suspended a distance of h = 1.60 {rm m} below the ceiling by two cables that make equivalent angles with the ceiling. Each cable has a length of l = 3.50 {rm m}.
Then, calculate the exact number of protons and express the answer in scientific notation with the correct number of significant digits.
The coefficients of static and kinetic friction between a 67 kg box and a horizontal surface are 0.56 and 0.32, respectively. Illustrate what is the acceleration of the object if a 335 N horizontal force is applied to the box?
A source emits sound uniformly in all directions. A radial line is drawn from this source. On this line, determine the radial positions of two points, 0.786m apart, such that intensity level at one point is 1.72 dB greater than that at the other.
A 750 air-track glider attached to a spring with spring constant 10.5 is sitting at rest on a frictionless air track. A 475 glider is pushed toward it from the far end of the track at a speed of 118 .
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