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Find the net electric flux through the spherical closed surface shown in the figure below. The two charges on the right are inside the spherical surface. (Take q1 = +1.98 nC, q2 =+1.11 nC, and q3 = - 3.06 nC.)
An ice skater is gliding horizontally across the ice with an initial velocity of +6.40 m/s. How much time elapses before her velocity is reduced to +2.92 m/s
What generalizations can you make from this exploration? Where would a positive test charge have the least potential energy
Two traveling waves with the same amplitude A, frequency f, and wavelength, but out of phase with each other by one quarter of a wavelength, aWrite the equation of the resulting traveling wave
A point charge of +6.5? C is located 0.33 m from a second point charge of -6.8? C. What is the absolute magnitude of the force on each charge
A bat flying in a cave emits a sound and receives its echo 0.2 second later. Determine how far away is the cave wall
A Carnot refrigerator operating between -10.0 ?Cand + 10.0 ?C extracts heat from the cold reservoir at the rate 100J/s. What is the rate at which heat is exhausted to the hot side
A cyclotron designed to accelerate protons has a magnetic field of magnitude 0.590 T over a region of radius 1.40 m, What is the cyclotron frequency
An electron collides elastically with a stationary hydrogen atom. The mass of the hydrogen atom is 1837 times that of the electron.Assume that all motion, before and after the collision, occursalong the same straight line.
Calculate the magnitude, the direction of resultant force and the coefficient of kinetic friction.
A soldier has a huge contraption that notches a large 4 kg arrow (it looks more like a lance) in a massive bow and uses a winch system to draw the arrow back to set the bow. What is the speed of the arrow
A compact disk (CD) in a computer rotates from rest up to an angular speed of 31.4 rad/sec in 0.892 sec. What is the angular acceleration of the disc
An engine that operates at the maximum efficiency possibletakes in 1.0 MJ of heat at 327o C and exhausts waste at127o C. How much work does it perform
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