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In the a proton is projected horizontally midway two parallel plates that are separated by 0.50 cm. The electrical field due to the plates has magnitude 610,000 N/C between the the plates away from the edges. If the plates are 5.60 cm long find the minimum speed of the proton if it just misses the lower plate as it emerges from the field.(ep=1.60 x 10-19 C, epsilon 0=8.85 x 10-12 C2/N.m2 ,mel=1.67 x 10-27kg)
A large negatively charged object is placed on an insulated table. A neutral metallic ball rolls straight toward the object, however stops before it touches it. A second neutral metallic ball rolls along the path followed with the first ball, strikes..
Eight 60 kg skaters join hands and skate down an ice rink at4.6m/s. Side by side; they form a line 12 m long. The skater at one end stops suddenly, and the line proceeds to rotate strictly about that skater.
A long straight wire carries a current of 88.0 A. An electron, traveling at 6.5x10^7 m/s, is 1.5 cm from the wire. What force (magnitude and direction) acts on the electron if the electron's velocity is directed toward the wire?
The work to required to strech a certain spring by an elongation of 4.00 cm to an elongation of 5.00cm is 30.5 J. (a)is the work required to increase the elongation of the spring from 5.00 cm to 6.00 cm greater than,less than or equal to30.5J?
An aircraft with a mass of 908 kilogram accelerates from 0 to 88 meter per second in 7.2 s, at which time the aircraft launches. Find the kinetic energy of aircraft when aircraft launches
The magnetic field of an electromagnetic wave in a vacuum is Bz=(2.5 microT)Sin(1.9*10^7 x-2(3.14)ft), where x is in m and t is in s. What is the wave's electric field amplitude
A cat runs along a straight line (the x-axis) from point A to point B to point C. The distance between points A and C is 5.00 m, distance between points B and C is 10.0 m, and the positive direction of x axis points to the right. The time to run f..
A 1000 kg roller coaster car starts from rest from a hilltop 80.0 m above the ground, find the average frictional force between the car's wheels and the track
A 10 kg object is moving at 6.36 m/s. The object passes 3m over rough surface with a frictional force of 20 N. How far does the object compress the spring
A 5.0-um strand of DNA carries charge +e per nm of length. Treating it as a charged line, What is the electric field strength 21nm from the DNA, not near either end
A cell membrane has a resistance and a capacitance and thus a characteristic time constant. What is the time constant of a 8.7nm -thick membrane surrounding a 4.2 × 102 mm-diameter spherical cell
What is the wavelength of the reflection minimum?
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