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A capacitor has circular plates of radius 10 cm separated by 1 mm. If the capacitor is connected to a 12 volt battery,
a) What will be the charge on the capacitor?
b) What is the electric field in the capacitor?
c) What would be the energy stored in the capacitor?
d) A dielectric is inserted into the capacitor in and the stored energy is found to be 0.14 µJ. What is the dielectric constant?
Some of the earliest atomic models held that the orbital velocity of an electron in an atom could be correlated with the radius of the atom, what is the kinetic energy of this orbital electron
In a certain compound microscope, the object is 9.0 mm from the objective. What overall magnification is produced
two point charges, seperated by 1.5 cm have charge values of +2.0, What is the value of the mutual force between them
The resistance of a silver wire is to be calibrated for low-temperature measurements. A silver wire with a resistance of 1.15, what is the expected resistance of the silver wire at -196 °C
A 76 W light bulb with a resistance of 178 ? is connected to a power supply with a 117 V, What is the internal resistance of the power supply
A cars brakes can only accelerate the car by -10m/s^2. If the car is going 30m/s when the brakes are applied, how long would it take for the car to come to a stop.
There is a beam that weighs 1500 kilograms and is twenty meters in length. It has a 15000 kilogram mass on the right side, five meters from the center of gravity. obtain the net tension of each brace that is holding up the beam on both sides.
A 24.5 kg child is standing on the outer edge of a merry-go-round which has moment of inertia 989 kg*m2 and radius 2.40m. Find the angular velocity if the child moves to a final position
A 0.5 kg block of ice is sliding by you on a very slippery floor at 2.5m/s. As it goes by, you give it a kick perpendicular to its path. Your foot is in contact with ice block for 0.0025 seconds.
A mirror has a focal length of 10 cm. An object is located 15 cm to the left of the mirror. What is the total magnification for the two images
An airplane needs to reach a velocity of 402km/h to take off. On a 2000 m runway, what is the minimum acceleration necessary for the plane to take flight.
Two point charges are located on the axis as follows: charge = -1.80 at = -0.500 , and charge = 2.20 at the origin (= 0). What is the direction of the net force
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