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A crystal is mounted in a goniometer (an apparatus that allows it to be turned around its axis). Using x-rays of wavelength 0.14 Angstroms, you observe maxima when the reading on the goniometer is 12.5 degrees, 14.6 degrees and 16.7 degrees. What is the spacing between the crystal planes? Note you do not know how the crystal is oriented in the goniometer.
Consider an alternating current of the form i(t) sin(2pit), where t is the time elapsed measured in seconds. (a) at what times is the magnitude of the current largest? (b) if this current were applied to a resistor, at what times would the magnitude ..
A binary star system has two stars, each with the same mass as our sun, separated by 8.00×1011m. What is the comet's speed at the midpoint
Two 2.0 cm x 2.0 cm square electrodes, spaced 0.4 mm apart, are connected to a 10 V battery. What is the charge on each electrode
The index of refraction of rock salt is about 1.52. What is the speed of light in rock salt
A thin rod with uniform length per unit length "lambda" is bent into the shape of an arc of a circle of radius R. What is the electric field at the origin
suppose you made a 5.40 kiloOhm resistor from a carbonresistor and a Nichrome wire-wound resistor connected together so the total resistance is the sum of their separate resistances. Whatvalue should the carbon resistor have (at 0 degrees Celsius)..
a 60middotkg bungee jumper jumps from a bridge. she is tied to a 15middotm-long bungee cord and falls a total of
In the figure, suppose that the separation between speakers A and B is 5.90 m and the speakers are vibrating in phase. They are playing identical 110-Hz tones, and the speed of sound is 343 m/s.
A train (an engine and four cars) is accelerating at 1.60 m/s^2 . The mass of each car is 3.60 x 10^4 kg, What is the force of the first car on the second car
A child sitting 1.06 m from the center of a merry-go-round moves with a speed of 1.35 m/s. Calculate the centripetal acceleration of the child
A container is filled to a depth of 21.0 cm with water. What is the absolute pressure at the bottom of the container
Spinal fluid pressure can be measured using a spinal tap in which a needle is inserted in the patient's lower back with the patient sitting upright on an examination table. The pressure due to the weight of the spinal fluid (given that its density..
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