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A body of mass m1 with initial velocity v0 collides with a second body, of mass m2, initially at rest (like in the LAB frame). The initial Kinetic energy K0 of the first body must be "paid for"(must be provided by some energy source). But it is the total kinetic energy of the two bodies in the center-of-mass(CM) frame which represents the energy available for reactions, to create new particles, et cetera. Calculate the ratio of this total energy to the initial LAB energy K0, in term of the masses m1 and m2.
an air-filled lead balloon of radius r is totally submerged in a tank of water. a show that the thickness of the skin
Consider light with an initial intensity, I0. Calculate the fraction of light that gets through the following setups: (a) A single polarizer, (b) Two polarizers with their transmission axes 30 degrees apart
A particle travels around a circle of radius 2.0 m making one complete revolution every 2.0 m/s. What are the particle's tangential speed and its angular speed
A football is kicked with a speed of 20 m/s at an angle of 40 degrees to the horizontal? What is the final velocity of the football
The rain-soaked shoes of a man may explode if ground current from nearby lightning vaporizes the water. find what average current is required to vaporize water
A 6.4-cm-diameter, 10-cm-long cylinder contains 120mg of oxygen (O2) at a pressure less than 1 atm. What is the temperature of the gas
A plane of a 5.0 cm x 8.0 cm rectangular loop of wire is parallel to a 0.19 -T magnetic field. The loop carries a current of 6.2 A. obtain the magnetic moment of the loop
the earth completes a circular orbit around the sun in one year. the orbit has a radius of 93,000,000 miles. what is the speed of the earth around the sun in m/s? Report your result using scientific notation.
You select a rental package that includes a car with an average consumption of 6rm liters of fuel per 100 rm km. Considering that in Europe average fuel cost is 1.063 rm euros/ liter, how much (in US dollars) will you spend in fuel in your trip.
Shortly after detonation the fireball of a uranium fission bomb consists of a sphere of gas radius 15 m and a temperature 3E5 K. Assuming that the expansion is adiabatic and that the fireball remains spherical, estimate the radius of the ball when..
Each question below is unique and do not borrow information from a previous part. Sometimes farmers use barrels of hot water to keep their barns warm in the winter. How much heat would need to be removed from a barrel (42L) for it to go from 90 oC ..
The hydrogen spectrum has a red line at 656 nm and a violet line at434 nm. What angular separation between two spectral lines obtained by a diffraction grating that has 4880lines/cm? (Suppose that the light is incident normally on the grating.)
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