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Ratio of Charge to Mass (e/m) for the Electron
Presume an apparatus (vacuum tube) is turned on to a constant voltage of 200V. A beam will now be observed on the glass envelope opposite the anode. Adjusting the current, I through the coil would show how the beams curves up into the sphere of the tube and eventually bends over to complete a full circle.
1) Using a compass, decide the direction of the magnetic field applied by the coil. Then, from the direction the electrons bend, decide whether their charge is positive or negative. EXPLAIN your rezoning.
2) Turning off the current to the coil. Use a permanent magnet with known north and south poles to apply a known magnetic field to the electron beam. From the direction of deflection of the electrons, decide whether their sign is positive or negative. Describe your reasoning.
3) Can you explain why the presence of the extra field distorts the electron's path?
4) How will Earth's field affect the motion of the electrons?
A storage tank has a diameter of 80 ft, a height of 25 feet, and contains oil to a height of 15 ft. The suction pumps, whichcan handle 15, 000 bbl/d are started, but the safety valves areclogged and a vacuum is drawn in the tank. The roof is flata..
Consider the crates in the figure where m1 = 45 kg and m2 = 12 kg. Assume that there is no friction between m1 and the table, Write Newton's second law for motion along both coordinate directions
A capacitor (3.90 µF) is connected in a series arrangement with a second capacitor (1.30 µF) and a 12 Volt battery. find by how much does the charge on larger capacitor change
suppose that the speed of light in a vacuum were one million times smaller than its actual value c 3.00 x 102 ms. the
A gas is compressed inside a cylinder. An average force of 100n acts to move the piston 0.2m. What is the change in internal energy of gas
A satellite circles the earth in an orbit whose radius is 1.83 times the earth's radius. What is the period of the satellite
Your university radio station has a 5.5 kW radio transmitter that broadcasts uniformly in all directions; listeners within 15 km have reliable reception. What should be the new power
a winch pulls a car of mass 2000kg up a 20 degree incline at a speed of 3 ms. what is the minimum power output of the
Blood pressure in Argentinosaurus. If this long-necked, gigantic sauropod had a head height of 20.2 m and a heart height of 9.00 m, What was the blood pressure at the feet
what is the maximum head-start distance the speeder can have? Measure time from the moment the police car starts.
The lowest frequency standing wave pattern that can be made on a certain string on a cello is 220Hz (which is a musical "A" note). calculate the frequency of the 3rd overtone
a 2598.79 lbs. go cart and driver rounds a curve. If the centripetal force on the go cart and driver is 1250 lbs. What is the radius of the curve
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