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When high-energy, charged particles move through a transparent medium with a speed greater than the speed of light in that medium, a shock wave, or bow wave, of light is produced. This phenomenon is called the Cherenkov effect and can be observed in the vicinity of the core of a swimming pool reactor due to high-speed electrons moving through the water. In a particular case, the Cherenkov radiation produces a wavefront with an apex half-angle of 61.8?.
Calculate the speed of the electrons in the water. The speed of light in water 2.2 × 108 m/s.
A meterstick lies along the optical axis of a convex mirror of focal length -48 cm, with its nearest end 63 cm from the mirror. How long is the image of the meterstick
Two point charges are on the y axis. A 5.20-µC charge is located at y = 1.25 cm, and a -2-µC charge is located at y = ?1.80 cm. Find the total electric potential at the origin
An electron with an initial speed of 4.00×105m/sis brought to rest by an electric field, What was the initial kinetic energy of the electron, in electron volts
A 5.0 multiplied by 102-newton girl takes 10. seconds to run up two flights of stairs to the landing, a total of 5.0 meters vertically above her starting point. What power does the girl develop during her run.
A potter's wheel having a radius 0.49 m and a moment of inertia of 12.6 kg · m2 is rotating freely at 48 rev/min. Find the effective coefficient of kinetic friction between the wheel and the wet rag
5 moles of an ideal gas, initially at P=105 Pa and V=3m3, expand adiabatically until the volume is doubled, How much work was done in the adiabatic step
The new blade on my table saw has a radius of 15.0 cm. My table saw has a maximum speed of 3750 rpm. If it takes 2.50 seconds to get up to this final speed, what is the tangential velocity of the tip of the saw blade,
A 2.50m long pipe closed at one end, Find the number of the harmonic corresponding to this frequency
A 55.0 kg sailor jumps from a dock into a 100.0 kg rowboat at rest beside it. what is the velocity of the sailor
Dan is gliding on his skateboard at 4.00m/s . He suddenly jumps backward off the skateboard, kicking the skateboard forward at 6.00m/s, How fast is Dan going as his feet hit the ground
A 128-cm-long pipe is stopped at one end. Near the open end, there is a loudspeaker that is driven by an audio oscillator, What is the lowest frequency of the oscillator that will produce resonance within the tube
A cylindrical capacitor consists of a cylinder (of length L and radius a) with a total charge Q nested inside a thin conducting cylindrical shell (of length L and radius b) with total charge -Q
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