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A beam of particles is directed at a0.013-kg tumor. There are1.8 × 1010particles per second reaching the tumor, and the energy of each particle is4.2 MeV. The RBE for the radiation is 14. Find the biologically equivalent dose given to the tumor in11 s.
Two charged particles areprojected in the same direction into a magnetic field perpendicularto their velocities. If the particles are deflected in oppositedirections, what can be said about them?
A flat sheet of crystalline quartz has athickness of 3.1 cm. It is on top of aflat sheet of diamond that has a thicknessof 3.0 cm. how far would it have traveled in a vacuum
An ac generator with a frequency of 1.44kHz and an rms voltage of 21.2V is connected in series with a 1.90 kiloohms resistor, What is the power factor for this circuit
Light enters a container of benzene at an angle of 43 deg. to the normal, Calculate the index of refraction of benzene
A 3.9 kilogram block is pull by horizontal force of 50 Newton along rough horizontal surface at a constant velocity 6m/s. Evaluate what the coefficient of friction
A motorcycle has a constant speed of 30.0 m/s as it passes over the top of a hill whoseradius of curvature is 118 m. Find the magnitude of the normal force that acts on the cycle
what is the absolute magnitude of the force on each charge?
A canoe has a velocity of 0.31m/s southeast relative to the earth. The canoe is on a river that is flowing 0.47m/s east relative to the earth. Find the magnitude of the velocity of the canoe
Rapid changes that are sometimes observed in stars might indicate that dynamical processes are taking place. From the timescales of such changes-usually oscillations with a characteristic period - we may roughly estimate the average density of the st..
a monkey pulls a box of bananas with mass 6.2 kg on a surface with a constant speed of 0.50 m/s. how much is the normal force on the box
A firefighter mounts the nozzle of his fire hose a distance 40.1 m away from the edge of a burning building so that it sprays from ground level at a 45° angle above the horizontal. By what factor was the nozzle diameter changed
A 1200kg car traveling initially at v initial of 25m/s in aneasterly direction crashes into the back of a 9000kg truck movingin the same direction at v truck of 20 m/s. The velocity of the carimmediately after the collision is 18 m/s in the eastdi..
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