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An x-ray tube is operated at 45000 V.
(a) Find the minimum wavelength of the radiation emitted by this tube.
(b) If the radiation is directed at a crystal, the first-order maximum in the reflected radiation occurs when the grazing angle is 4.5°. What is the spacing between reflecting planes in the crystal?
The Mars rover was deployed on the surface of Mars in July 1997. At one point during its subsequent mission, How far was Mars from the from Earth at that time
Two point charges are fixed on the y axis: a negative point charge q1 = -28 µC at y1 = +0.23 m and a positive point charge q2 at y2 = +0.31 m. A third point charge q = +8.7 µC is fixed at the origin. The net electrostatic force exerted on the char..
The coefficient of kinetic friction between the lighter block and the plane is 0.10 the lighter block leads, find the tension in the taut string
A plane sinusoidal electromagnetic wave in air has a wavelength of 3.90cm and an E field amplitude of 1.40V/m. What is the magnetic field amplitude?
A laboratory vacuum pump can reduce the pressure to 1.0 × 10^-7 Pa. If the volume of the chamber is 0.500m^3 and the temperature is 27°C
A fisherman is fishing from a bridge and is using a "30.0-N test line." In other words, the line will sustain a maximum force of 30.0 N without breaking. What is the weight of the heaviest fish that can be pulled up vertically.
At high noon, the Sun delivers 825W to each square meter of a blacktop road. If the hot asphalt loses energy only by radiation, what is its equilibrium temperature.
An airplane flies 200 km due west from city A to city B and then 315 km in the direction of 33.0° north of west from city B to city C.
While riding her bicycle on a 140 meter track, a rider took 18 seconds on her first lap and 17 seconds on her second
A cord is wrapped around the rim of a solid uniform wheel 0.300 in radius and of mass 7.80 . A steady horizontal pull of 40.0 to the right is exerted on cord, pulling it off tangentially from the wheel. The wheel is mounted on frictionless bearing..
A 12.0V dc battery having no appreciable internal resistance, a 146.5? resistor, an 10.6mH inductor, and an open switch are all connected in series. After the switch is closed, what is the maximum energy stored in the inductor
Charge of -3.30 nC and a charge of -6.25 nC are separated by a distance of 40.0 cm. Find out the position at which a third charge of +7.60 nC can be placed so that the net electrostatic force on it is zero.
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