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Light from a laser strikes a diffraction grating that has 4250 grooves per centimeter. The central and second order principal maxima are separated by 0.850m on a wall 1.50m from the grating.
a. Find the wavelength of the laser.
b. In separate experiment, microwaves of wavelength 5.00cm pass through a tall, narrow slith of width 36.0cm. If the microwaves are projected to a wall 6.50m from the slit, find the central maximum width of the microwaves diffraction pattern.
A 2.30 cm diameter tungsten sphere is heated to a temperature of 2000 degree C. At this temperature tungsten radiates only 30% of the energy radiated by a blackbody of the same size and temperature.
The G string on a violin has a fundamental frequency of 196 Hz. It is 28.0 cm long and has a mass of 0.500 g. what is the effective length of her string
An electron orbiting a hydrogen atom has an initial energy of -0.544 eV. The atom emits a photon, then absorbs a photon, What was the wavelength of the emitted photon
a car is driven along a circular track. the track road is flat. the car starting from rest increases its speed
A microwave oven operates at 2.4 GHz with an intensity inside the oven of 2350W/m^2. What is the amplitude of the oscillating electric field
An ice sheet with area 10:0 m x 10:0 m and uniform thickness of 1.20 m floats in the Arctic Ocean. Assume that the density of ice is 917 kg/m3, Find the buoyant force acting on the ice sheet
A point charge Q is located at the center of a very thin, spherical metal shell. what is the electric potential of the shell
If the spring stretches by 2.4cm, what is the coefficient of static friction between the backpack and the table.
Find out the recoil velocity that the raft. At what height above the cannon should the net be placed in order to catch the daredevil.
Suppose you point a pinhole camera at a 15-m-tall tree that is 75m away. If the film is 22cm behind the pinhold, what will be the size of the tree's image on the film
Light is incident on a thin prism for which n= 1.5. Find the angle of deviation for the emerging beam
The volume flow rate in an artery supplying the brain is 4.00 10-6 m3/s. If the radius of the artery is 4.80 10-3 m, determine the average blood speed
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