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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?
LASIK eye surgery uses pulses of laser light to shave off tissue from the cornea, reshaping it. What is the power of one laser pulse
when 200nm light is incident on the cathode of a photoelectric tube the stopping potential is 4.2v.a find the velocity
A semitrailer is coasting downhill along a mountain highway when its brakes fail. Determine what was the trucks initial speed? Ignore air resistance and friction
question a at room temperature what is the strength of the electric field in a 12-gauge copper wire diameter 2.05 mm
A vertical electric field of magnitude 2.25*104 N/C exists above the Earth's surface on a day when a thunderstorm is brewing. A car with a rectangular size of 6.00 m by 3.00 m is traveling along a dry gravel roadway sloping downward at15.5°. Decide t..
We drop a 26-g ice cube (0C) into 1000 g of water (20C). Find the total change of entropy of the ice and water when a common temperature has been reached
An airplane is flying with a velocity of 97.0 at an angle of 25.0 above the horizontal. while the plane is a distance 103 directly above a dog that is standing on level ground, a suitcase drops out of the luggage compartment. How far from the dog ..
An RL circuit has a 5 k resistor and a 1mH inductor. This circuit is driven by a 100 Hz sine wave with 1V amplitude. What is the amplitude of the current in the circuit
The weight of the car is 14 kN. You know three points on the plane, What is the force of friction (Ff=?).
A bicycle wheel has an initial angular velocity of 16 radians/second and acceleraties to a final angular velocity of 42 radians/second, Determine the time required for this motion to occur
A hollow sphere of inner radius 8.0cm and outer radius 9.0cmfloats half -submerged in a liquid of density 800kg/m3, What is the mass of the sphere
A piston, A, as shown below, has a diameter of 0.61 cm. A second piston, B has a diameter of 3.7 cm. Determine the force, F, necessary to support 500.0 N weight in the absence of friction.
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