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Double-slit experiment. (a) Suppose you illuminate the slits with 589 nm yellow sodium light and observe a 4.5 cm bright-fringe spacing on a screen 1.75 m away. What's the slit spacing? (b) A double-slit system with slit separation 0.340 mm is used to determine the wavelength of light passed by a filter. The resulting bright fringes are 2.58 mm apart on a screen 1.5 m away. What's the wavelength?
Two identical aluminium objects are insulated from their surroundings. Object A has a net charge of excess electrons. Object B is grounded. Which object is at the higher potential.
The desperate contestants on a TV survival show are very hungry. The only food they can see is some fruit hanging on a branch high in a tree. With what speed does the rock leave the spring
Brian purchased a collector's model Mercedes Benz Mr Slim from John, who claimed that the car was part of a limited series edition released in the late 1960s. At a vintage motor show Brian was advised by a number of experts that the car he purcha..
A 9.66 × 1014 Hz electromagnetic wave propagates in carbon tetrachloride with a speed of 2.05 × 108 m/s. The wavelength of the wave in vacuum is closest to:
A car of mass = 1300 travelling at 56.0 enters a banked turn covered with ice. The road is banked at an angle, and there is no friction between the road and car's tires. What is the radius of the turn if = 20.0 (assuming the car continues in uniform ..
The axis of the second polarizer is at an angle θ to the first, and the axis of the third polarizer is at an angle π/2 to the first polarizer. What is the transmitted intensity as a function of θ, and its maximum possible value?
an athlete in a competition needs to get from point a to another point b directly across from a river. he can swim in
A 90.0- and a 45.0- resistor are connected in parallel. Whenthis combination is connected across a battery, the currentdelivered by the battery is 0.376 A. When the 45.0- resistor is disconnected, the currentfrom the battery drops to 0.131 A.
A generator has a square coil consisting of 500 turns. The coil rotates at 82 rad/s in a 0.49 T magnetic field. What is the length of one side of the coil
a 150lb man stands at the rear of a 250lb boat which is pointed towards the pier. the distance from the man to the pier
A projectile is launched vertically from the surface of the earth with an initial speed v0 = 6.02 km/s. What is the magnitude of its acceleration (m/s2) 1920 km above the surface of the earth
Two polarizers are oriented at 54? to one another. Unpolarized light falls on them. What fraction of the light is intensity is transmitted
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