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A conducting rod whose length is ? = 1.60 m is placed on frictionless U-shaped metal rails that is connected to a lightbulb having a resistance of 4.00 ? as shown in the figure. The rails and the rod are in the plane of the page. A constant uniform magnetic field of strength 2.20 T is applied perpendicular to and out of the paper. An external applied force moves the rod to the right with a constant speed of 6.00 m/s. At what rate is energy dissipated in the lightbulb?
establish linear speed of the dragster.
What is the initial (horizontal) velocity of the ball. An airplane needs to reach a velocity of 203 km/h to take off. On a 2000 m runway, what is the least acceleration necessary for the plane to take flight.
The speakers produce the same single-frequency tone in either drawing and are in phase. The speed of sound is 343 m/s. Find the single smallest frequency that would produce both constructive interference in drawing 1 and destructive interference in d..
An 88 kg spacewalking astronaut pushes off a 640kg satellite, exerting a 640N force for the 0.60 s it takes him to straighten his arms.
Two point charges are on the y-axis. A 6.0 µC charge is located at y = 1.50 cm, and a -2.46 µC charge is located at y = -1.40 cm. (a) Find the total electric potential at the origin. (b) Find the total electric potential at the point having coordi..
An alpha particle of mass m = 6.68×10-27 kg, positive charge q = 2e, and initial kinetic energy K = 9.00 MeV is projected, how close to the center of the nucleus is the particle when it comes momentarily to rest
Four charged particles are at the corners of a square of side. (Let A = 3, B = 4, and C = 5.) (a) Determine the electric field at the location of charge q.
When placed 1.2 m apart, the force each exerts on the other is 12 N and is repulsive. What is the charge on each? What if the force were attractive.
Consider three identical metal spheres, A, B, and C. Sphere A carries a charge of +10q. Sphere B carries a charge of -7q. Sphere C carries no net charge. Spheres A and B are touched together and then separated.
A rattlesnake can strike with the acceleration equivalent to an increase in speed from 0 to 60 mi/h in 1/2 s. If the rattlesnake's head weighs 0.33 lb, what average power does the rattlesnake generate throughout its strike.
A charge -318e is uniformly distributed along a circular arc of radius 7.00 cm, which subtends an angle of 49o, What is the linear charge density along the arc
A child slides down a slide with the 29 degree incline, and at the bottom her speed is precisely half of what it would have been if the slide had been frictionless. Compute the coefficient of sliding between the child and the slide.
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