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Visible light passes through a diffraction grating that has 900 slits per centimeter, and the interference pattern is observed on a screen that is 2.80 m from the grating. In the first-order spectrum, maxima for two different wavelengths are separated on the screen by 2.96 mm. What is the difference between these wavelengths? Express your answer in meters.
Two resistors of 20 ohms and 25 ohms are connected in parallel. find the potential difference across the third resistor
In a thin film experiment, a wedge of air is used between two glass plates. how much thicker is the air wedge at the 16th dark fringe than it is at the 6th
a laser beam of unknown wavelength is incident on a single slit of width 0.25 mm and forms a fraunhofer diffraction
An isolated conductor of arbitrary shape has a net charge of +1.2 10-5 C. What is the charge on the cavity wall
A typical color television draws about 2.9 A when connected to a 150 V source. What is the efiective resistance of the T.V. set
A rectangular boat is overloaded so that the water level (in fresh water) is just one centimeter (1.0 cm) below the top of the boat. what is the combined mass of all the people and the boat combined
A 1.4 kg object at x= 2.00m, y = 3.10m moves at 3.96 m/s at an angle of 45 degrees north of east. Calculate the magnitude of the object's angular momentum
A 60 cm long steel rod with a diameter of 4 cm is mated to a 40 cm long Cu rod with the same diameter. the unmated end of the steel rod( not at the interface) is connected to a 140 degrees C heat source, while the far end of the Cu( not at the int..
q1. a spring of force constant k2.5102 nm is suspended form a rigid support. an object o mass 1.00 kg is attached to
How much force pulling along the incline is needed to hold in place a 14.0 kg mass on an incline that makes an angle of 22.0 degrees with the horizontal
A ship's mast reaches to a height of 15 meters above the surface of a 10-meter-deep lake. how long will the shadow of the mast
Assume a small child rolls off a bed that is 0.38m above the floor. If the floor is hardwood, the child's head is brought to rest in approximately 2.2mm. If the floor is carpeted, this stopping distance is increased to about 1.1cm.
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