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The intensity on the screen at a certain point in a double slit interference pattern is 64.0% of the maximum value.
1. What minimum phase difference (in radians) among sources produces this result?
2. Express this phase difference as a path difference for 486.1nm light.
You slide a box of books at constant speed up a 30 degree ramp, applying a force of 160 N directed up the slope. What is the mass of the box
An ac power generator produces 24 A rms at 4909 V. The voltage is stepped up to 86000 V by an ideal transformer, What percentage of the power delivered by the generator is dissipated as heat in the power line
Class 2 lasers, including many laser pointers, produce visible light with no greater than 1 mW total power. Find the peak electric field in the laser beam
A 9.4 cm diameter loop of wire is initially oriented perpendicular to a 2.3 T magnetic field. determine the average induced emf in the loop
Three wires are arranged parallel to each other. Wire 1 sits at x = -2.5m with a current I1 = 3.0A directed into the page, Determine the location of wire 3 and the direction of the current such that the net magnetic force acting on wire 3 is zero
A railroad car of mass 3.0 104 kg moving at 4.00 m/s collides and couples with two coupled railroad cars, What is the speed of the three coupled cars after the collision
Photons of wavelength 220nm impact on a metal target and liberate electrons with kinetic energies ranging from 0 to 61X10 to the -20 power J. Determine the cutoff wavelength
An n-type semiconductor has a donor concentration of 1*10^13 cm^-3. If the equilibrium electron concentration is 1.2*10^13 cm^-3
A record breaking steam powered car needs to turn 52.5 liters of water into steam every minute, what power heater is required to do that
A rectangular barge, 4.0 m long and 1.5 m wide, floats in fresh water. (a) Find out how much deeper it floats when its load is a 380-kg horse. (b) If the barge can only be pushed 15 cm deeper into the water before water overflows to sink it, how m..
If linear momentum is conserved when there is no external force applied, how is angular momentum conserved? 2. The change in angular momentum with the change in time is equal to what?
Steam enters an insulated pipe at 200 kPa and 200 degrees C and leaves at 250 kPa and 150 degrees C. The inlet-to-outlet diameter ratio for the pipe is D1/D2=1.80. Determine the inlet and exit velocities of the steam.
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