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A parallel-plate capacitor is made of two flat metal plates pressed against a thin slab of dielectric material. The capacitor is connected to a power supply, and a potential difference of 105 V is applied to the plates. With the power supply disconnected, the dielectric material is removed and the potential difference between the plates is measured to be 400 V. What is the dielectric constant of the material that was initially used to fill the gap between the plates.
The distance between two successive minima of a transverse wave is 2.57 m. Five crests of the wave pass a given point along the direction of travel every 12.4 s. Find the frequency of the wave
Two tiny spheres have the same mass and carry charges of the same magnitude. Determine the charge magnitude
A standard violin string is 32.8 cm long from the tuning peg to the bridge. When played open(without pressing a finger against the fingerboard), What is the speed of the wave on the string
The Relativistic Heavy Ion Collider (RHIC) at Brookhaven is colliding fully ionized gold (Au) nulcei accelerated to an energy of 200 GeV per nucleon, What is the speed of each Au nucleus just before collision
The ultracentrifuge is an important tool for separating and analyzing proteins in biological research. If the samples are 11 cm from the axis if the rotor and the ultracentrifuge spins at 6.5×10^4 rpm, what is the magnitude of the net force on the ..
A crate is sliding down a ramp that is inclined at the angle of 33° above the horizontal. The coefficient of kinetic friction between the crate and the ramp surface is 0.479. Find the acceleration of the moving crate.
Amber (n = 1.546) is a transparent brown-yellow fossil resin. An insect, trapped and preserved within the amber, How far below the surface is the insect actually located
Sarge notices that the cable is susceptible to vibrations. He drives the rope at a frequency such that the center of the span goes through the largest amount of motion. What frequency does Sarge drive the rope at
Find the capacitance of a parallel plate capacitor having plates of area 6.00 m2 that are separated by 0.200 mm of Teflon
A bomb explodes into three identical pieces. One flies in the + y-direction at 12.5 m/s , a second in the - x-direction at 15.4 m/s. What's the direction of the velocity of the third piece
Suppose you have an electric hot water heater for your house which is an aluminum cylinder which has a 0.6 m radius and is 1.2 m high. The walls are 1.0 cm thick.
If I hit a trampoline with a velocity of 38.8 m/s at 53.4 degrees above the horizontal, and I leave the trampoline at an angle of 36 degrees from the horizontal at a velocity of 40 m/s and am in contact with the trampoline for 0.5 seconds.
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