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Lenz's Law is said to be a consequence of the principle of conservation of energy. Explain this statement by describing what would happen if Lenz's Law were reversed. Take the example of a wire loop with a changing magnetic flux, and describe what would happen if current were induced opposite to the way it really is.
A small object is placed to the left of a convex lens and on the optical axis. What is the position of the image formed by the lens
A power station with an efficiency of 0.5 generates 10^8W of electric power and dissipates 1.00 x10^8 W of thermal energy to the cooling water that flows through it.
A spherical Christmas tree ornament is 3.84 cm in diameter. What is the magnification of the image of an object placed 11.1 cm away from the ornament
At a winter fair a 65.5-kg stunt man is shot from a horizontal cannon that rests at the edge of a frozen lake. The human projectile is cast onto the smooth ice, slides some distance, how many revolutions does the stunt man make
a 100 kg car travelling at 20 ms collides with a 100 kg car traveling at 8 ms in opposite direction a if the two cars
When the skateboarder reaches the highest point, how far is this point horizontally from the end of the ramp.
Assuming a deuteron and a triton are at rest when they fuse according to the reaction shown below. determine the kinetic energy acquired by the neutron
The International space station (ISS) orbits the Earth at an altitude of 350km above the surface. it takes 90min to complete one orbit around the Earth. explain why the two clocks fall out of synchronization
Average Rate of Work The loaded cab of an elevator has a mass of 3.00 multiplied by 103 kg and moves 235 m up the shaft in 23s at constant speed. At what average rate does the force from the cable do work on cab.
A group of hikers hears an echo 2.80 s after shouting. How far away is the mountain that reflected the sound wave? (Assume the speed of sound is 346.4 m/s.)
One of the fragments falls straight downward as though it had been released from rest. Explain how far from the gun does the other fragment land
When a certain photoelectric material is illuminated with red light (?=715) and then blue light (?=400), calculate the work function of the material
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