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An empty capacitor is connected to a 11.9-V battery and charged up. The capacitor is then disconnected from the battery, and a slab of dielectric material (κ = 2.2) is inserted between the plates. Find the magnitude of the amount by which the potential difference across the plates changes.
Gas is contained in a 6.00-L vessel at a temperature of 21.0°C and a pressure of 8.00 atm. Determine the number of moles of gas in the vessel
A block of unknown mass is attached to a spring with a spring constant of 6.00N/m and undergoes simple harmonic motion with an amplitude of12.5cm. Calculate the maximum acceleration of the block
Element X decays to element Y with a half-life of 0.77 s. Initially there is a sample of pure X and after 2.31 s there are 7g of Y. What was the mass of the original sample
A 350kg piano slides 3.7m down a 33^\circ incline and is kept from accelerating by a man who is pushing back on it parallel to the incline (see the figure(Figure 1) ). The effective coefficient of kinetic friction is 0.32.
An electron (charge=-1.6x10^-19C) is moving at 3x10^5 m/s in the positive x direction. What are the magnitude and direction the magnetic force on the electron
A stone thrown horizontally from a height of 5.72 m hits the ground at a distance of 13.50 m. Calculate the speed of the stone as it hits the ground
The basic concepts in optics.
4. A ball is kicked toward a fence from a point 32 meters away. The velocity of the ball as it leaves the kicker's foot is 24 m/s at an angle of 37 degrees above the horizontal. The top of the fence is 2.0 meters high. Assuming air resistan..
A roof tile falls from rest from the top of a building. How far abovethe top of this window is the roof
A hiker's trip consists of three segments. Path A is 8km long heading 65 degrees north of east. Path B is 7km long in a direction due east. Path C is 4.0 km long heading 313 degrees counter clockwise from east.
A cubical block of wood 10cm on a side, floats at the interface between oil and water with its lower surface 1.50 cm below the surface
External forces compress 21 mol of ideal monatomic gas; during the process the gas transfers 15 kJ of heat to its surroundings, How much work was done on the gas
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