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A velocity selector has an electric field of magnitude 2500 N/C,directed vertically upward, and a horizontal magnetic field that is directed south. Charged particles, traveling east at a speed of7.27 x 103 m/s, enter the velocity selector and are able to pass completely through without being deflected. When adifferent particle with an electric charge of +4.40 x10-12 C enters the velocity selector traveling east, thenet force (due to the electric and magnetic fields) acting on it is2.17 x 10-9 N, pointing directly upward. What is the speed of this particle?
Two sound sources driven in phase by the equal amplifier are d = 4 m apart on the y axis. At a point a very large distance from the y axis, constructive interference is first heard at an angle θ1 = 0.140 rad with the x axis.
A roller coaster at an amusement park has a dip that bottoms out in a vertical circle of radius r, how fast is the roller coaster traveling at the bottom of the dip
Two railroad freight cars with masses 110 Mg and 140 Mg approach with equal speeds of 0.350 m/s. They collide, the lighter car rebounding opposite its original direction at 0.330 m/s.
A 72 kg man in a 5-kg chair tilts back so that all weight is balanced on two legs of the chair. Assume that each leg makes contact with the floor over a circular area with the radius of 1.0 cm, and find out the pressure exerted on the floor by eac..
A dockworker applies a constant horizontal force of 72.0N to a block of ice on a smooth horizontal floor, What is the mass of the block of ice
Two negative and two positive point charges (magnitude = 3.64mC) are positioned on opposite corners of a square (each side = 0.155 m).Determine the magnitude of the force on each charge.
A 6-µF capacitor in series with a 2-? resistor is charged with a 9-V battery for a long time by closing the switch, Determine the maximum current through the inductor
A typical incandescent lightbulb has a filament temperature of approximately 3191 K. At what wavelength is the intensity of the emitted light highest
An object is held up by two ropes. rope 1 makes an angle of 65 degrees above horizontal and the tension in it is T1 = 26N. rope 2 makes an angle of 32 degrees above horizontal and the object is in equilibrium. what is the tension in rope 2 (T2) an..
A ship's mast reaches to a height of 15 meters above the surface of a 10-meter-deep lake. how long will the shadow of the mast
Suppose you want a capacitor bank with a total capacitance of 1.450 F and you possess numerous 2.50 mF capacitors. What is the smallest number you could hook together to achieve your goal
drop a rock into a well. You hear the splash 2.40 s after you release the rock from rest. The speed of sound in air at the ambient temperature is 336 m/s. How far below the top of the well is the surface of the water?
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