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A helium atom (mass 4.0 u) moving at 600m/s to the right collides with an oxygen molecule (mass 32 u)moving in the same direction at 403 m/s.After the collision, the oxygen molecule moves at 447 m/s to the right. What is the velocity of thehelium atom after the collision?
an ideal gas for which cv3r2 is the working substance of a carnot engine. during the isothermal expansion the volume
The number of radioactive nuclei in a particular sample decreases to one-eighth of the original amount in 21 days. What is the half-life of the these nuclei
A hydraulic jack is made with a small piston 1.2 cm in diameter that is used to move a large piston 6.1 cm in diameter. how heavy a load can he lift with the jack
Assume that a 90.0 W light bulb radiates all its energy as a single wavelength of visible light. Estimate the magnetic field strength at the surface of the bulb
a car travels 20km at 15degrees north of west then turns and goes 30km at 10degrees east of south . find the carss
The length of a moving spaceship is 27.0 m according to an astronaut on the spaceship. If the spaceship is contracted by 14.5 cm according to an Earth observer, what is the speed of the spaceship
Determine the initial rate of heat transfer from a hot pack to a patient due to thermal conduction (through the toweling) when the hot pack is applied
A scuba diver releases a 3.50 cmdiameter (spherical) bubble of air from a depth of 10.0 m in alake. How large is the bubble when it reachesthe surface
Suppose that electrical energy costs about $0.098/(kW · hour), If the electric potential provided by the electric company was 120 V, what was the average current in all circuits in the author's house
A student is ice fishing in Colorado on a frozen lake over spring break. Find the mass of ice cut out to make the hole
In a baseball game, the catcher stops a 35 m/s pitch. How much net work is done on the baseball as it is caught? what average force did the mitt exert on the ball
A luminous point is moving at speed Vo toward a spherical mirror of radius R along its axis. What is the speed at which the image is moving
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