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An electrically neutral model airplane is flying in a horizontal circle on a 3.0m guideline, which is nearly parallel to the ground. The line breaks when the kineticenergy of the plane is 50.0 J. Reconsider the same situation, except that now there is a point charge of +q on the plane and a point charge of -q at the other end of the guideline. In this case, the line breaks when the kinetic energy of the plane is 51.8 J. Find the magnitude of the charges.
Two manufactures of fiber optic material are in competition. ZipCo offers a fiber with a loss coefficient of 2.9E-3/m, Which company has the best offer
a clay vase on a potters wheel experiences an angular acceleration of 7.15 rads2 due to the application of a 14.1-n m
A tennis player swings her 1000 g racket with a speed of 9.00m/s . She hits a 60 g tennis ball that was approaching her at a speed of 14.0m/s . The ball rebounds at 45.0m/s.
In determining the specific heat of a new metal alloy, 150g ofthe substance is heated to 400C and then placed in a 200g aluminium calorimeter containing 400g of water at 10C. If the final temperature of the mixture is 30.5C, what is the specific h..
A spherical capacitor contains a solid spherical conductor of radius 0.5mm with a charge of 7.4 micro coulombs, surrounded by a dielectric material with er = 1.8 out to a radius of 1.2mm, then an outer spherical non-conducting shell, with variable ch..
a metal rod is forced to move with constant velocity along two parallel metal rails, connected with a strip of metal at one end, At what rate is energy being transferred to thermal energy
A 500 Hz whistle is moved toward a listener at a speed of 10 m/s. At the same time, What is the apparent frequency heard by the listener
A 900-kg car traveling east at 15.0 m/s collides with a 750-kg car traveling north at 20.0 m/s. The cars stick together. What is the speed of the wreckage just after the collision
an electric dipole consists of q330nc separated by a distance of 1200nm. the dipole is initially oriented in -i
a projectile of mass 0.831 kg is shot straight up with an initial speed of 28.9 ms. a how high would it go if there
A current of 32.9 mA flows in a silver wire of diameter 4.01 mm, Find the electric field strength inside the wire
008 10.0 points A length of metal wire has a radius of 0.006 m and a resistance of 0.08 ?. calculate the density of free electron in the wire
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