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Suppose a 12C beam is produced at a tandem Van de Graaff accelerator. The negatively charged 12C ions become positively charged after being stripped by the stripping foil at the terminal. Then the analyzing magnet after the accelerator is used to select the 12C beam with charge state of 3+ for an experiment. What should the terminal voltage of the accelerate be set to if the energy of the 12C beam is needed to be 20Mev?
A bottle containing 600 gram of lukewarm water is located inside of a freezer. Determine how many calories of heat must be removed from that water to chill its temperature 32oC to 10oC
Electrons are emitted when a metal is illuminated by light with a wavelength less than 381nm but for no greater wavelength. What is the metal's work function?
A 5.06 10-5 H solenoid is constructed by wrapping 63 turns of wire around a cylinder with a cross-sectional area of 9.70 10-4 m2 , Determine the change in the length of the solenoid
He area of a typical eardrum is about 5.0 multiplied by 10-5m2. Compute the sound power incident on an eardrum at the threshold of pain. Compute the sound power (the energy per second) incident on an eardrum at the threshold of hearing.
A particular wire has a resistivity of 6.21×10-8 m and a cross-sectional area of 2.04 mm2. A length of this wire is to be utilized as a resistor that will develop 120 W of power when connected to a 6.50 V battery. What length of wire is required?
Humans can detect a difference in sound instensity levels of 1.0dB. What is the ratio (louder to softer) of the sound intensities
An open-open organ pipe is 84.2 cm long. An open-closed pipe has a fundamental frequency equal to the third harmonic of the open-open pipe. How long is the open-closed pipe
a 1.0 x 10-9 c charge is at the origin and a -1.00 x 10-9 c charge is 4.1 m to the right on the positive x-axis. the
1. a a massless rope is stretched horizontally between two supports that are 3.0 m apart. when an object of weight 3200
Two pieces of optically flat glass (n = 1.50) touch at one edge and a separated by a thin stretched fiber at the opposite edge. Light of wavelength 500 nm is shone from above and 100 dark fringes are counted. How thick is the fiber?
A skier slides down along a frictionless snow slope starting from rest at point A with elevation hA = 84 m. Ignore air resistance. Find the speed of the skier at point B with elevation hB = 21 m and point C with elevation hC = 62m
A 4.0- m-long iron bar of uniform cross section is held perpendicular to the wall by a wire from the end of the bar to the wall, What is the tension in the wire if the iron bar weighs 300 N and the wire is 5.0 m long
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