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In an electron diffraction experiment, electrons are accelerated during voltage dissimilarity and then hit a wall with two small slits separated by 0.50 nm. 20 cm beyond the wall there is a phosphorescent screen where a diffraction pattern forms when the electrons strike it. The minima in the diffraction pattern are separated with 2.1 cm. What is the value of the voltage utilized to accelerate the electrons?
The author gold wedding ring is stuck on his finger, and he must remove it. How much must the temperature of the ring be increased for it to slide past the knuckle
A box is sliding down an incline tilted at an angle 14.0° above horizontal. The box is sliding down the incline at a speed of 1.70 m/s. The coefficient of kinetic friction between box and incline is 0.380. How far does the box slide down the incli..
A small object has a mass of 4.0 × 10-3 kg and a charge of -32C. It is placed at a certain spot where there is an electric field. When released, the object experiences an acceleration of 2.8 × 103 m/s2 in the direction of the +x axis. Decide the elec..
A conductor bar ab of length 0.6 m is moving on two conductin grails with a speed v = 3.6 m/s perpendicular to a uniform magneticfield of B=0.35 T.
a block of mass 0.246 kg is placed on top of a light vertical spring of force constant 5 125 nm and pushed downward so
A person driving her car at 46.0 km/hr approaches an intersection just as the traffic light turns yellow, How far from the intersection will she be when the light turns red
Over a certain region of space, the electric potential is V = 4.2x-3.6x^2y+1.5yz^2. On scratch paper, What is the magnitude of the field at the point P
Two newly discovered planets follow circular orbits around a starin a distant part of the galaxy. What is the orbital period of the faster planet
An ambulance traveling at 38 m/s approaches a car heading in the similar direction at a speed of 27 m/s Find at what frequency does the driver of the car hear the siren
Large conventional electromagnets use water cooling to prevent excessive heating of the magnetic coils. ow many liters of water must circulate by the coils each second if the temperature of the coils is not to exceed 50 degree C
A football player kicks a 0.41-kg football initially at rest;and the ball flies through the air. what is the football's change in momentum
We have a hollow metallic sphere with charge -5.0 µC and radius 5.0 cm. We insert a +10-µC charge at the center of the sphere during a hole in the surface. What charge now rests on the outer surface of the sphere?
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