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A tiny capacitor found in a clock radio uses a dielectric with a dielectric constant of 262. The electric field strength between the plates of this capacitor is 6.11 × 105 V/m. If the dielectric were replaced with a vacuum, obtain what would the strength of this electric field become, assuming the charges on the plates remain the same?
An elevator can lift a 185 N aircraft a distance of 36 meters in 11 s. What is the power output of the elevator
Two children tug on a toy of mass 2.0 kg. Costa pulls with a force of 10.0N [W 30degrees S]. The toy slides with an acceleration of 2.5 m/s^2 in the direction of the net force.
How much farther from the tower does the cannonball from the higher cannon land than cannonball from the lower cannon.
The radius of the hydrogen atom is 0.053 nm. What is the frequency of the circular motion of the electron in the hydrogen atom
a boat that can travel at 3.4kmh in still water crosses a river with a current of 1.9kmh. at what angle must the boat
An airplane pilot tries to fly directly east with a velocity of 800.0 km/h. what is the relative velocity of the airplane to the surface of the earth
A perfect negative index lens is used with a single molecule. How long time will it take to form a perfect image of themolecule with the ideal lens, and why?
A baseball (m = 145 gram) approaches a bat horizontally at a speed of 39.1 m/s (87 miles per hour) and is hit straight back at a speed of 45.5 m/s (102 mi/h). determine the average force exerted on the ball by the bat
A 2-kg book with no initial velocity slides down an inclined plane with an angle of 20 degrees a total of 2 meters. The force of friction does 10 Joules of work, what is the final kinetic energy of the system as the book reaches the bottom of the ..
The average threshold of dark-adapted (scotopic) vision is 4.00 10-11 W/m2 at a central wavelength of 500 nm. how many photons per second enter the eye
How much heat is released when a mixture containing 23.0 g CS2 and 23.0 g Cl2 reacts by the following equation CS2(g) + 3Cl2(g) ---> S2Cl2(g) + CCl4(g) delta H= -230 kJ
An iron bolt is used to connect two iron plates together. The boltmust withstand shear forces up to about 3200 N. Calculate the minimum diameter for the bolt
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