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A 200-Volt battery is connected to a parallel-plate capacitor that has a dielectric slab (k= 2) filling the space between the plates. The plates are 10cm x 10cm and are 3mm apart. Now the battery is disconnected while the dielectric slab stays inserted, with care taken not to discharge the plates. After the battery is disconnected, the slab is removed completely from between the plates. What is the final potential difference between the plates? What is the final charge on the capacitor?
Two ships are moving along a line due east (see figure below). The trailing vessel has a speed relative to a land-based observation point of v1 = 59.5 km/h, What frequency is monitored by the leading ship
An object of mass 3.00 kg, moving with an initial velocity of 5.00i m/s, collides with and sticks to an object of mass 2.00 kg with an initial velocity of ?3.00j m/s
An 80.0 kg person carries a 25 N package up aflight of stairs. The vertical height of the stairs is 10.0 m. How much total work did the person do on herself and the package
A motor has an internal resistance of 12 ohms. When running, the motor has a back emf of 30 V and draws a current of 4.0 A. What is the supply voltage in this case
q1. the temperature of the glass surface of a 30 w light bulb is 75degc when the room temperature is 10degc. estimate
Make a 10 to12 slide powerpoint presentation on behaviourism and social-learning theory. Include speaker notes and graphics, limit text to fie lines, and use approximately five words per bulleted item.
A uniform electric field of about 100 V/m pointing straight down, exists just above Earth's surface. what uniform surface charge density would be required
Description of Physics - Mechanics - Force, A window washer is standing on a scaffold supported by a vertical rope at each end. The scaffold weighs 200 N and is 3.00 m
A 74 kg person is parachuting and experiencing a downward acceleration of 2.9 m/s2. The mass of the parachute is 5.8 kg. find the upward force on the open parachute from the air
As a bacterium swims through water it propels itself with its flagella so as to overcome the frictional drag forces and move at, more or less, constant velocity of 100 micrometers/s for periods of time. If the frictional drag force on a bacterium is ..
A mechanic pushes a 2.80 103-kg car from rest to a speed of v, doing 4,650 J of work in the process. During this time, the car moves 26.0 m. calculate the horizontal force exerted on the car
A Van de Graaff generator is used to demonstrate the effects of high potential. The device has a radius of 59.7 cm, How much charge does the dome hold at its maximum potential
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