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A large person with mass m1 and a small person with mass m2 with m1 = 4m2, are holding on to a massless pole while standing on frictionless ice, as shown above. If the large person pulls himself toward the little person along the massless rod, where will they meet?
If the cross product of a vector of length 5 and a vector of length 3 in a vector of length 10. What is the angle between them?
When 1.0 kg of coal is burned, about 3.0 x 107 J of energy is released. how many kilograms of coal must be burned to produce the same energy as 0.79 kg of 92U235
an electron in a cathode-ray tube is traveling horizontally at 2.60times109 cms when deflection plates give it an
An electric field ofmagnitude 11000 N/C and directed upward perpendicular to theEarth’s surface exists on a day when a thunderstorm is brewing. A truckthat can be approximated as a rectangle 2.7 m by 3.2 m is traveling along a road that isinclined..
a person jumps from the roof of a house 3.4 high. when he strikes the ground below he bends his knees so that his torso
An electron and a proton are each accelerated starting from rest through a potential difference of 30.0 million volts. Find the momentum (in MeV/c) and the kinetic energy (in MeV) of each, and compare with the results of using the classical formul..
Tom the cat is chasing Jerry the mouse across a table surface1.5 m above the floor. What velocity components will he have just before he hits
There are 50x10^6 homes in the US. Each home has one light bulb which runs one hour per day. all have 75watt light bulbs. How much energy per year do they use for lighting
Radiation of a certain wavelength causes electrons with a maximum kinetic energy of 0.68 eV to be ejected from a metal whose work function is 2.55 eV. What will be the maximum kinetic energy
Two equally charged spheres are located 2 cm away from each other. what is the magnitude of the charge on each of sphere
A light string can support a stationary hanging load of 23.0 kg before breaking. What range of speeds can the object have before the string breaks
A tuning fork with frequency 540 Hz is dropped from a building of height 125 m with a musician. The musician can hear the fork sounding as it falls. What frequency does the musician hear right after three seconds?
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