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An electron with a speed of 5.00 x 108cm/s enters an electric field of magnitude 1.00 x 103N/C, traveling along a field line in the direction that retards its motion.
(a) How far will the electron travel in the field before stopping momentarily, and
(b) How much time will have elapsed?
(c) If the region containing the electric field is 8.00 mm long (too short for the electron to stop within it), what fraction of the electron's initial kinetic energy will be lost in that region?
When tightening a bolt, you push perpendicularly on a wrench with a force of 161 N at a distance of 0.120 m from the center of the bolt. How much torque are you exerting
A 2,500-kg car moving east at 10.0 m/s collides with a 3,000-kg car moving north. Find the speed of the 3,000-kg car before the collision
A daredevil jumps a canyon 9.6 m wide. To do so, he drives a car up a 18° incline. What minimum speed must he achieve to clear the canyon
A heat engine operates between a high-temperature reservoir at 610K and a low-temperature reservoir at 320K. What is the net change in entropy as a result of this cycle?
Unpolarized light travels throughout 2 linear polarizers. What (minimum) angle should the second polarizer be relative to the first polarizer (the difference between q1 and q2) so that the final intensity of light is 1/3 original value.
Three boxes, each of mass 22.0 kg are on a frictionless table, connected by massless strings. What is the net horizontal force on box A
When a certain spring is stretched by an amount x, it produces a restoring force of F(x) = ax=bx^2, where a and b are constants. How much work is done through an external force in stretching the spring by an amount D from its equilibrium length.
A metal ball with a mass of 3.81·10-6kg and a charge of +5.21 mC has a kinetic energy of 4.77·108J. how close will it come to the plane before stopping
A cylindrical conductor has resistance of R0 = 200 ? (ohms). what's the value of the new resistance in ohms
A transverse wave of frequency 14 Hz propagates down a string. Two points 15 cm apart are out of phase by pi/6. What is the wave velocity
A muon with rest energy 106 MeV is created at an altitude of 4600 m and travels downward toward Earth's surface. What is the muon's total energy in the muon's frame of reference
A typical person radiates about 62 W of power at room temperature. Given this result, how long does it take for a person to radiate away the energy obtained by consuming a 230-calorie doughnut.
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