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Question: The two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 656 nm (red) and 486 nm (blue). Light from a hydrogen lamp illuminates a diffraction grating with 510lines/mm , and the light is observed on a screen 1.7m behind the grating.
Part A: What is the distance between the first-order red and blue fringes?
I need help to calculate the distance between the first-order red and blue fringes.
A merry-go-round (I= 500 kg m^2) of radius R = 2 meters is rotating about a frictionless pivot, making one revolution every 5 seconds. Find the new angular speed of the merry-go-round
Two barometers are made with water and mercury. If the mercury column is 45 in. tall, how tall is the water column
Three long, straight electrical cables, running north and south, are tightly enclosed in an insulating sheath. One of the cables carries a 21.3 A current southward; the other two carry currents of 17.2 A and 10.8 A northward.
a uniform electric field of 300 nc makes an angle of 25o with the dipole moment of an electric dipole. if the potential
Joey, whose mass is 37kg , stands at rest at the outer edge of the frictionless 250kg merry-go-round, 1.9m from its center. The merry-go-round is also at rest. What is the final angular speed of the merry-go-round
A light bulb is placed 13.6 cm in front of a concave mirror. When the concave mirror is replaced by a plane mirror in the same location, Calculate the focal length of the concave mirror
Blocks with masses of 4.0, 8.0, and 9.0 are lined up in a row on a frictionless table. All three are pushed forward by a 16 force applied to the 4.0 block. How much force does the 8.0 block exert on the 8.0 block.
question1a soccer player kicks a rock horizontally off of a 40.0m high cliff into a pool of water. if he hears sound of
To weigh a fish, a person hangs a tackle box of mass 3.5 kilogramsand a cooler of mass 5 kilograms from the ends of a uniform rigidpole that is suspended by a rope attached to its center. What is the mass of the fish
A catapult on a cliff launches a large round rock towards a ship on the ocean below. calculate the speed at which the rock is launched
A 2.00 kg block hangs without vibrating at the end of a spring(k=500 N/m) that is attached to the ceiling of an elevator car. Thecar is rising with an upward acceleration of g/3 when theacceleration suddenly ceases (at t=0).
Note the gravitational acceleration of equatorial sea level is g = 32.0088ft/s^2 and that its variation is 0.003ft/s^2/ 1000ft ascent. find the height in miles above its point for which g = 30.504 ft/s^2 and what is the weight of a 180lb man on top o..
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