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Question: Suppose the crystal in the above example is rotated to 30 ? with respect to the incident beam and the detector is rotated to 30 ? with respect to the crystal. What is the wavelength of the x-rays that are detected?
A steel piano wire vibrates in its first harmonic mode with a fundamental frequency of f1 = 410 [Hz]. How many harmonics can be heard by a person
A mining lift, with a 80kg cage, should be able to pull up to the surface ten 90kg miners, from a 20m deep well, in 20s. If the gearboxes available have an efficiency of 75%, what should be the power rating of the DC motor used. If the driving gear p..
At a distance r away from a point charge q, the electric potential is V = 600 V and the magnitude of the electric field is E = 200 N/C
What is the angular velocity of the tires in rad/s - Find the horizontal distance the arrow will travel before hitting the ground.
a 13.5-kg box slides over a rough patch 1.75 m long on a horizontal floor. just before entering the rough patch the
A rod suspended on its end and acting as a physcial pendulum swings with a period of T=1.49 sec. What is the length of this physical pendulum
An electric utility company supplies a customer's house from the main power lines (115V) with two copper wires, Calculate the power lost in the copper wires
Because the neutron has no charge, its mass must be found in some way other than by using a mass spectrometer. Find the mass of the neutron from these data
A 51.0-g Super Ball traveling at 27.0 m/s bounces off a brick wall and rebounds at 21.5 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 3.75 ms,
Two charges of equal magnitude exert an attractive force of 2.5×10-4 N on each other. If the magnitude of each charge is +3.0? C, how far apart are the charges
A coil of four circular loops of radius 3.0cm carries a current of 5.0A clockwise, What is the magnetic field at the center of the coil
A sun yacht is a spacecraft with a large sail that is pushed by sunlight. Although such a push is tiny in everyday circumstances, What is the magnitude of the resulting acceleration
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