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An alpha particle (mass 4 u) experiences an elastic head-on collision with a nucleus (mass 192 u) that is originally at rest. (The symbol u represents the atomic mass unit.) What fraction of its original kinetic energy does the alpha particle lose?
A weather balloon filled with helium gas has a volume of 306 m3 and pressure 1.4 105 Pa at the Earth's surface (where the temperature is 293 K). What is the new volume of the balloon
A solid cylinder of mass 10 kg is pivoted about a frictionlessaxis through the center O. What is the angular acceleration of the cylinder
the astronaut whose heart rate on earth is 60 beats/min increases his velocity to v=.8c. Now what is his heart rate as measured by an earth observer
A charge -Q is uniformly distributed along a circular arc of radius R beginning on the +y axis and ending on the -x axis. Find the electric potential at the origin
A 20cm radius centrifuge is spinning. If the test tube travels a distance of 50 meters around the centrifuge in 3 seconds, What is the period and frequency of the centrifuge
You heat a 585 cm3 sample of a substance from 129°C to 283°C, Calculate the coefficient of volume expansion of this substance
An x-ray tube is operated at 40600 V. find the minimum wavelength of the radiation emitted by this tube
A train makes a round trip on a straight, level track. The first half of the trip is 300 km and is traveled at a speed of 75 km/h. What is the train average speed and average velocity
An airplane with a speed of 77.7 m/s is climbing upward at an angle of 45.5 ° with respect to the horizontal. Relative to the ground, determine the angle of the velocity vector of the package just before impact
A light year is defined as the distance light can travel at 3 x 108 m/s in one year (365 days). How far is one light year in kilometers
Consider a closed triangular box resting within a horizontal electric field of magnitude E = 8.24 104 N/C. Calculate the electric flux through the vertical rectangular surface of the box.
Three equal point charges, each with a charge of 1.80?C , are placed at the corners of an equilateral triangle whose sides have a length of 0.550m, What is the potential energy of the system
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