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A certain substance has a dielectric constant of 2.8 and a dielectric strength of 18.0 MV/m. If it is used as the dielectric material in a parallel-plate capacitor, what minimum area should the plates of the capacitor have to obtain a capacitance of 9.00×10-8 F and to ensure that the capacitor will be able to withstand a potential difference of 4.5 kV?
A copy-cat daredevil tries to reenact Evel Knievel's 1974 attempt to jump the Snake River Canyon in a rocket-powered motorcycle. What is the minimum launch speed required for the daredevil
a magnetic field is directed at a 40 degree angle to a plane circular loop of wire with a radius of 26.8 cm draw a diagram showing the wire loop angle and magnetic field. determine the induced emf in the wire loop
A stone is dropped from rest from the roof of a 100-m high building; 2.00 s after that, a second stone is thrown straight down with initial speed v0, and the second stone passes the first stone 21.6 m above ground.
A projectile is launched at ground level with an initial speed of 50.0 m/s at an angle of 30.0º above the horizontal. It strikes a target above the ground 3.00 seconds later. What are the x and y distances from where the projectile was launched to..
A 0.54 cm high object is placed 8.7 cm in front of a diverging lens whose focal length is -7.5 cm. What is the height of the image
A proton moves through a magnetic field at 31.1% of the speed of light. compute magnitude of the magnetic force acting on the proton
By what factor must the mass of the ice be increased if the system is to have the same final temperature?
An air-hockey puck of mass m floats across the table essentially frictionless on a cushion of air. What is the final velocity of the heavier puck
A long piece of wire with a mass of 0.100 kg and total length of 4.00 m is used to make a suare coil with a side of 0.100 m. Find the torque acting on the coil due to the magnetic force at equilibrium
You are trying out for the position of place-kicker on a professional football team. By how much is it under or over the bar
Explain why should the Bryson Corporation act ethically in this situation? Illustrate what are the potentially negative representations of acting unethically?
A ball of mass m is tied to a vertical (Cyclinder) post of radius R. The mass slides on a frictionless, What is the angular momentum of the ball after the string has wrapped once around the post
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