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1. Sunlight incident on a screen containing two long narrow slits 0.2mm apart casts a pattern on a white sheet of paper 2m beyond. What is the distance (in mm) separating the violet (lambda = 400nm) in the first-order band from the red (lambda = 600nm) in the second order?
2. A soap film has an index of refraction of 1.334. How thick (in nm) is the film if one-half of a wavelength of red light (with a vacuum wavelength of 700nm)extends from one surface across the film to the other surface?
3. A think film of ethyl alcohol (n = 1.36) spread on a at glass plate and illuminated with white light shows a lovely color pattern in reflection. If a region of the film reflects only green light (500nm) strongly, what is its minimum thickness (in nm)?
What phase difference between two otherwise identical harmonic waves, moving in the same direction along a stretched string, will result in the combined wave having an amplitude 1.4 times that of the amplitude of either of the combining waves? Exp..
Curious about the resistance of an audio speaker, Luke Klaus Lee measures the resistance of a speaker which is labeled as having a6 Ω impedance. The voltmeter’s lowest scale is 200Ω and only gives one digit. What is the range of frequencies involved?
Two persons are pulling a boat through the water. Each exerts a force of 600 Newton directed at a θ = 25.0 degree angle relative to the forward motion of the boat, obtain the resistive force exerted by the water on boat
Point A of the link BA has a downward velocity of Va = 2 m/s during an interval of it's motion. For the position where Φ = 30 degrees determine the angular velocity W of AB and determine the velocity (Vg) of the midpoint G of the link. Solve the ..
Plane microwaves are incident on a thin metal sheet that has a long, narrow slit of width 5.6 cm in it. What is the wavelength of the microwaves
A ball of radius 0.200 m rolls with a constant linear speed of 3.60 m/s along a horizontal table. What is the angular displacement of the ball while the ball is in the air
A 370-?F capacitor and a 10m H inductor are in series with a 365 ? resistor. What is the impedance at the resonant frequency
the membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space.
A ship has a mass of 40000 kg. its energy gives it an acceleration of 0.27 m/s while it travels a distance of 105 meters from rest. what force does the engine exert on the ship.
The 10-kg block B is supported by the 40-kg block A which is pulled up an incline by a constant 500 N force. Neglecting friction between the block and the incline and knowing that block B does not slip on block A, determine the smallest allowable ..
Suppose a duck lives in a universe in which h = 2? J · s. The duck has a mass of 2.55 kg and is initially known to be within a pond 1.65 m wide. determine the uncertainty in the duck's position after this time interval
A man drags a 71.5-kg crate across the floor at a constant velocity by pulling on a strap attached to the bottom of the crate. Find the magnitude of the tension in the strap
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