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Two rigid rods are oriented in parallel to each other and to the ground. The rods carry the same current in the same direction. The length of each rod is 0.85 m, and the mass of each is 0.073kg. One rod is held in place above the ground, while the other floats beneath it at a distance 8.2 x 10^-3 m. Determine the current in the rods.
One day, after pulling down your window shade, you notice that sunlight is passing through a pinhole in the shade and making a small patch of light on the far wall. estimate the diameter of the pinhole
The index of refraction for red light in water is 1.331 and that for blue light is 1.340. A ray of white light enters the water at an angle of incidence of 80.4°. What is the underwater angle of refraction for the red component of the light?
A river 107.3 m wide flows toward the south at 31.0 m/min. A girl on the west bank wishes to reach the east bank in the least possible time. How far downstream does she travel
A 2.0-kg block slides along a rough horizontal surface. A force(P=6.0N) is applied to the block at a 30degree angle. find the magnitude of the force of friction acting on block
A race car rounds a curve at 53 m/s. The radius of the curve is 450 m, and the car's mass is 620 kg. What is the centripetal force acting on the car
A toaster uses a heating wire. When the toaster is turned on at 20 degree C, the initial current is 1.54 A. A few seconds later, the toaster warms up and the current has a value of 1.23 A. The average temperature coefficient of resistivity for thi..
At a certain point on Earth's surface in the southern hemisphere, the magnetic field has a magnitude of 5.1 10-5 T, find the magnitude and direction of the force on the muon
A converging lens is located 10.0 cm to the left of a diverging lens. The focal length of the converging lens is +20.0 cm. where is the final image formed by the diverging lens
A space station is constructed in the shape of a wheel 16 rm m in diameter, with essentially all of its 6.0×10^5 rm kg mass at the rim.
a particle is moving along a straight line with the acceleration a 12t-3t12fts2 where t is in seconds.determine the
A proton and an antiproton, both at rest with respect to one another, How much energy is produced in this annihilation
A softball of mass 0.200 that is moving with a speed of 7.1 collides head-on and elastically with another ball initially at rest. Afterward the incoming softball bounces backward with a speed of 3.4 .Calculate the velocity of the target ball after th..
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