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In Rutherford's famous scattering experiment, α particles (helium nuclei) were fired at 2.0 x 10^7 m/s over a large distance toward a gold nucleus with charge +79e. How close does the α particle get before turning around?
A spaceship of rest length 192 m races past a timing station at a speed of 0.780c. What is the length of the spaceship as measured by the timing station
Two charged bodies exert a force of 0.790N on each other. If they are moved so that they are one-fourth as far apart, what force is exerted.
You take a trip to Pluto and back (round trip 11.5 billion km), traveling at a constant speed (except for the turnaround at Pluto) of 44500 km/hr. How long does the trip take, in hours, from the point of view of a friend on earth
What is the speed of the arrow as it leaves the bow.
An iron bar 40 cm long is braised to a copper bar 40 cm long and of the same diameter. What is the temperature of the junction point
Two 1.50V batteries -- with their positive terminals in the same direction-- are inserted in series into the barrel of a flashlight, What fraction of the chemical energy transformed appears asinternal energy in the batteries
A ‘U' shaped pipe contains a liquid that is sealed at both ends by pistons. Determine the downward force
Two rocks are thrown off the edge of a cliff that is 15.0 m above the ground. The first rock is thrown upward, at a velocity of +12.0 m/s. The second is thrown downward, at a velocity of 12.0 m/s.
Two forces act on a 6.00- kg object. One of the forces is 10.0N. If the object accelerates at 2.00 m/s 2, what is the greatest possible magnitue of the other force
Two 140 kg lead spheres are suspended from 200 m-long massless cables. By what distance (in meters) do the two spheres move closer
A light beam containing red and violet wavelengths is incident on a slab of quartz at an angle of incidence of 35.6°. The index of refraction of quartz is 1.455 at 660 nm (red light), and its index of refraction is 1.468 at 410 nm (violet light). Fin..
An aircraft weighing 902 N is accelerated at 10.8 m/s/s for 5 seconds, at which time the aircraft launches. What is the force required to launch the aircraft
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