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Question: From what you know about J.J. Thomson's discovery of the electron:
a. Explain how one can use a combination of electric and magnetic fields to determine the ratio of charge to mass of a particle when you don't know either.
b. Tell what there is about such experiments that leads you to conclude that cathode rays are particles?
c. Describe the ways in which Thomson's experiments suggest that atoms contain electrons, i.e., that electrons are parts of atoms?
Take a 16 cm long 0.6 diameter iron cylinder. Apply an alternating magnetic field along the axis by inserting the rod inside a solenoid attached to a high frequency current source. What is the current distribution in the rod
Calculate your apparent weight at the top and bottom of a Ferris wheel, given that the radius of the wheel is R meters, it completes one revolution every T seconds
Three blocks, each of mass 14kg are on a frictionless table. What is the net horizontal force on block A and what is the horizontal force on block A due to block B
An electric turntable 0.750 meter in diameter is rotating about a fixed axis with an initial angular velocity of 0.250 rev/s, Calculate the tangential speed of a point on the rim of the turntable at t= 0.200 sec
An airplane is flying at 600 km/h at an altitude of 2.0km. how far away is she from being directly below the airplane
A velocity selector has an electric field of magnitude 2620 N/C,directed vertically upward, and a horizontal magnetic field that isdirected south. Charged particles, traveling east at a speed of6.75 x 103 m/s, enter the velocity selector and are ab..
Explain Factors that affect the intensity of color are wavelength and concentration. Concentration affects the intensity of color because the less concentrated something is, the bigger the %T will be and vice versa.
a building is being knocked down with a wrecking ball which is a big metal sphere that swings on a 13-m-long cable. you
A 10.0-kg cylinder rolls without slipping across a surface. At an instant when its linear speed is 10.0-m/s, compute its translational kinetic energy
A very small circular metal ring of radius r=0.5cm and resistance x=5ohms is that the center of a large concentric circular metal ring of raduis R=50cm, What is the magnitude and direction of the average current in the small ring
An airplane accelerates down the runway. Assume the jetengines exerts a constant force on the airplane and assume airresistance is porportional to the velocity squared. What is the terminal velocity
A rock is dropped from a height of 100 m above the ground. How long after the ball is thrown will the objects be at the same height above the ground
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