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Some forms of cancer can be treated using proton therapy in which proton beams are accelerated to high energies, then directed tocollide into a tumor, killing the malignant cells. Suppose a protonaccelerator is 7.3 m long andmust accelerate protons from rest to a speed of 8.0*106 m/s. Ignore anyrelativistic effects and determine the magnitude of the averageelectric field that could accelerate these protons.
A hot water stream at 80 degrees C enters a mixing chamber with a mass flow rate of 0.5kg/s where it is mixed with a stream of cold water at 20 degrees C. If it is desired that the mixture leave the chamber at 42 degrees C,
Battery-powered electricity is very expensive compared with that available from a wall receptacle. Estimate the cost per kWh of an alkaline D-cell
A swimmer, capable of swimming at a speed of 1.50 m/s in still water (i.e., the swimmer can swim with a speed of 1.50 m/s relative to the water), How long does it take the swimmer to cross the river
The star nearest the earth (the sun) radiates the most energy at a wavelength of 470 nm. What is the temperatures of the sun's outer layer, the photosphere
Two tanks are engaged in a training exercise on level ground. The first tank fires a paint-filled training round with a muzzle speed of 237.5m/s, Find the distance between the tanks when the round was first fired
Two large, parallel, conducting plates are 26cm apart and have charges of equal magnitude and opposite sign on their facing surfaces. An electrostatic force of 2.8 x10-15 N acts on an electron placed anywhere between two plates.
question1a space station is in the shape of a hollow ring 450 in diameter. at how many revolutions per minute must it
A 40-cm-long tube has a 40-cm-long insert that can be pulled in and out. A vibrating tuning fork is held next to the tube. What is the frequency of the tuning fork
a 1.000 meter long rod (measured when stationary) is moving at 0.8 c. How long would the rod appear to a stationary observer
A light plane attains an airspeed of 480 km/h. The pilot sets out for a destination 830 km due north but discovers that the plane must be headed 24.0° east of due north to fly there directly
Why is the normal force of an object zero at the top of a hill (such as the hill of a roller coaster)? I'm doing a circular motion unit and I found a few problems where this is the case, and I was wondering how it works.
q1. a basketball player achieves a hang time of .658 s in dunking the ball. what vertical height will he attain? the
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