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A parallel-plate capacitor in air has a plate separation of 1.49 cm and a plate area of 25.0 cm2. The plates are charged to a potential difference of 255 V and disconnected from the source. The capacitor is then immersed in distilled water. Assume the liquid is an insulator.
(a) Determine the charge on the plates before and after immersion.(b) Determine the capacitance and potential difference after immersion.(c) Determine the change in energy of the capacitor.
A coil with magnetic dipole moment 1.5 A-m^2 is rotated initally with its magnetic moment parallel to a uniform magnetic field of 0.4T. what is the change in potential energy of the coil
The charge is uniformly distributed within volume of each sphere.How much kinetic energy does the block gain.
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1000 kg of seawater at 17.5 C and salinity of 3 percent is mixed with 500 kg of pure water with initial temperature 5 C, Determine the final temp C and salinity % of the mixture?
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Two friends hold on to a rope, one at each end, on a smooth, frictionless ice surface. What is the magnitude of the angular momentum of the system comprised of the two friends
An unknown material has a normal melting/freezing point of -26.3 ° C, and the liquid phase has a specific heat capacity of 160 J/(kg · C °). What is the latent heat of fusion of the unknown material
A model airplane of mass 0.790 kg is flying at constant speed in a horizontal circle at one end of a 26.0 m cord and at a height of 11.0 m. What is the acceleration of the plane
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A 1.00-kg glider attached to a spring with a force constant of 25.0 N/m oscillates on a horizontal, frictionless air track. At t = 0 the glider is released from rest at x = -3.00 cm.
A student moves a box of books by attaching a rope to the box and pulling with a force of 90.0 N at an angle of 30.0 degrees. Find the acceleration of the box
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