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A proton is located at a distance of 0.435 m from a point charge of +8.46 μC. The repulsive electric force moves the proton until it is at a distance of 1.80 m from the charge. Assume that the electric potential energy lost with the system is carried off by a photon that is emitted through the process. What is its wavelength?
question from amperes law we found that the magnitude of the magnetic field a distance r from a current-carrying wire
A car is traveling around a horizontal circular track with radius r = 190.0 m as shown. It takes the car t = 59.0 s to go around the track once. What is the magnitude of the car's acceleration
A bicycle wheel is rotating at 45 when the cyclist begins to pedal harder, giving the wheel a constant angular acceleration of 0.42.
A converging lens (f1 = 24.0 cm) is located 56.0 cm to the left of a diverging lens (f2 = -28.0 cm). How far is the object from the converging lens
A horizontal circular platform rotates counterclockwise about its axis at the rate of 0.891 rad/s. Calculate the total angular momentum of the system
q1. a person exerts a horizontal force of f 175 n in the test apparatus shown in the drawing. h 0.25 m. find the
A loudspeaker of mass 22 {rm kg} is suspended a distance of h = 2 {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has the length of l = 3.90 {rm m}.
find the radius r of the orbit of a geosynchronous satellite that circles the earth. note that r is measured from the
boxes a and b are descending vertically supported by a parachute .box a has mass of 60kg box b has mass 45kg and hangs
Two cars collide at an intersection. Car A, with a mass of 1900{kg} , is going from west to east, while car B, of mass 1500{kg} , is going from north to south at 17.0{m}/{s} . As a result of this collision, the two cars become enmeshed and move as on..
A 2300 kg truck traveling north at 39 km/h turns east and accelerates to 57 km/h. What is the change in the truck's kinetic energy
The input piston and output plunger of a hydraulic car lift areat the same level, as shown in the drawing. The cross-sectionalarea of the input piston is 12 cm2, while that of theoutput plunger is 1200 cm2
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