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Consider an electron with an initial speed v0 = 29 Mm/s (1 Mm = 1 megameter = 1000 km = 1E6 m) that is traveling parallel to an electric field (v0||E) of magnitude E = 7.1 kN/C (1 kN = 1 kilonewton = 1E3 N). How long will it take (what duration T, in microseconds) for the electron to return to its starting point?
A fountain shoots a jet of water 10 m into the air. The fountainhas a round nozzle of diameter 1.84 cm at ground level, fed by a pump located 6 m belowground through a round pipe of diameter 5.19 cm .
a single-turn wire loop is 3.8cm in diameter and carries a 600ma current.part a find the magnetic field strength at the
Suppose that charges on a dipole antenna oscillate slowly at a rate of 1 cycle/s, What is the magnitude of the Poynting vector
A 0.289-kg coffee mug is made from a material that has a specific heat capacity of 990 J/kg C° and contains 0.304 kg of water. determine the minimum power rating of this heater
A factory worker pushes a crate of mass 32.0kg a distance of 4.85 along a level floor at constant velocity by pushing horizontally on it. How much work is done on the crate by friction
The longest "string" (a thick metal wire) on a particular piano is 3.0 m long and has a tension of 300.0 N. It vibrates with a fundamental frequency of 27.4 Hz. What is the total mass of the wire
a red ball is thrown down with an initial speed of 1.3 ms from a height of 27.0 meters above the ground. then 0.5
A defibrillator is used during a heart attack to restore the heart to its normal beating pattern, How many electrons pass through the wires connected to the patient
A positron is a particle with the same mass and magnitude charge as an electron, but a positron has a positive charge. how fast is the positron moving
A woman walks 305 m in the direction 58° east of north, then 164 m directly east. Find the distance she walks
Hydraulic engineers often use, as a unit of volume of water, the "acre-foot", defined as the volume of water that will cover 1 acre of land to a depth of 1 ft. A severe thunderstorm dumps 3.0 in. of rain in 30 min on a town of area 30 km2. What vo..
a car mass 200 kg moving at 30 m/s is braked suddenly, withconstant braking force of 10000 N. How far does the car go before stopping
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