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Two 2.3-cm-diameter-disks spaced 1.8 mm apart form a parallel-plate capacitor. The electric field between the disks is 4.6×105V/m.
a. What is the voltage across the capacitor? (Express your answer with the appropriate units.)
b. How much charge is on each disk? (Enter your answers numerically separated by a comma.)
c. An electron is launched from the negative plate. It strikes the positive plate at a speed of 2.2×107m/s . What was the electron's speed as it left the negative plate?
(Express your answer with the appropriate units.)
For a given (tiny) > 0, explain how you would design a system for communicating the source's output over the channel with an average error probability per source symbol less than . Be as explicit as possible. In particular, do not invoke Shannon'..
Two forces of 2 and 3N, respectively, make an angle of 50 degrees with each other. Determine the resultant analytically by applying the cosine law, namely, R^2= A^2 +2AB cos (theta) + B^2, where A and B are the two forces and R is the resultant?
a particle of charge of 4.50 x 10-6 c is 12.0 cm distant from a second particle of charge of -2.00 x 10-6 c. calculate
The human eye is able to detect as little as 2.35 × 10-18 J of green light of wavelength 510 nm. Calculate the minimum number of photons of green light
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
A toddler, initially standing next to his father in the front yard, walks slowly away from his dad in the direction of 30.0? N of E for 3.50 meters. How far was the distance he walked due south
Monochromatic light falling on two slits 0.019mm apart produces the fifth-order bright fringe at an 8.3degree angle. What is the wavelength of the light used
one mole of an ideal gas at 1 atm and 0 C is compressed isothermally from 50 L to 20 L. What is the change of internal energy for this gas
A showroom for a department store is to be rectangular with a 6 ft door opening in wall and 2/3 of the opposite wall replaced by a window. What dimensions for the showroom will minimize the length of wall used
A river 107.3 m wide flows toward the south at 31.0 m/min. A girl on the west bank wishes to reach the east bank in the least possible time. How far downstream does she travel
A 79-kg parachutistdescends through a vertical height of 350 m with constant speed. Find the increase inentropy produced by the parachutist
A rifle bullet with mass 8.00g strikes and embeds itself in a block with a mass of 0.992 kg that rests on a frictionless, Find the magnitude of the block's velocity just after impact
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