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One can not align the apparatus to eliminate entirely the effects of the Earth's magnetic field. Consider the case where electrons having accelerated through V then enter the uniform field region between the Helmholtz coils. With the coil current set to zero, the electron beam was observed to have a slight curvature due to the earth's magnetic field. The current in the coil had to be set to 0.476A to set the electron beam exactly straight. If each coil has 64 turns and has a mean radius of 65.6 cm, calculate the component of the earth magnetic field perpendicular to the entering electron beam
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A bullet is fired horizontally from a 100 m, t all building with a speed of 900 m? How long will it take to hit the ground?
two 1.3kg masses are 1.2m apart (center to center) on a frictionless table. Each has + 9.2?Cof charge, What is the magnitude of the electric force on one of the masses
Problem on elevator
Find the acceleration of the aircraft and express it in multiples of g, free fall acceleration.
Smoke particles in the air typically have masses of the order of 10 to 16 kg. The Brownian motion (rapid, irregular movement) of these particles, resulting from collisions with air molecules, can be observed with microscope.
A second fragment, who's mass is 3.4 kg, moves away from the point of explosion with a speed of 418 m/s along the negative x axis. What is the speed of the third fragment? Ignore effects due to gravity.
A converging lens of focal length 7.550cm is 20.5cm to the left of a diverging lens of focal length -6.50cm, Find the magnification of the coins final image
The department actually completed 10,000 hours of production. Illustrate what is the appropriate total budget for the department, assuming it uses flexible budgeting?
A small spherical insulator of mass 8 x 10 kg and change +0.600 micro Coulomb is hung by a tin wire of negligible mass. A charge of -0.900 micro Coulomb is held 0.150 m away the sphere and straight to the right of it, so the wire makes the angle with..
A batter hits a 0.14kg baseball that was approaching him at 30.0 m/s and, accordingly, the ball leaves the bat at 40.0 m/s in the direction of the pitcher. The ball remains in contact with the bat for 2ms. What is the average force exerted by bat.
A parallel-plate capacitor has fixed charges +Q and -Q. The separation of the plates is then doubled. (a) By what factor does the energy stored in the electric field change? (b) How much work must be done in doubling the plate separation from d to..
A student eats a candy bar that may give 1.8 * 10^6 joules of energy. if the student has a mass of 60 kg, how high will he have a climb a ladder to offset completely the energy contained in the candy bar.
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