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Presume an “anti-Lenz’s law” existed that meant a force was exerted to increase the change in magnetic field. Thus, when more energy was demanded, the force required to turn the generator would be reduced. What conservation law would be violated by this new “law”? Describe.
A vertical spring (spring constant =165 N/m) is mounted on the floor. A 0.390-kg block is placed on top of the spring, Obtain the frequency (in Hz) of the motion
a uniform electric field aibj intersects a surface of area a. what is the flux through this area if the surface lies
A skier of mass 79 kg is pulled up a slope by a motor-driven cable. What power must a motor have to perform this task
A cyclotron accelerates two protons directly toward each other, each with a speed of 950 km/s , measured relative tothe earth. Find the maximum electric force in N that these protonswill exert on each other.
Heat is another word for thermal energy. Dissimilar materials at the same temperature can contain different amounts of heat.
most of the suns energy comes from the proton-proton chain in which four hydrogen nuclei i.e. protons fuse into one
Suppose we have a cube of resistors (12 resistors total) all the same resistance R connects as in the figure to left. Find the equivalent resistance between the two diagonally opposite corners
A container is filled with water to a depth of 48.3 cm. on top ofthe water floats a 24.4 cm thick layer of oil with a density of 862kg/m3. what is the absolute pressure at the surface of the water? the acceleration of gravity is 9.81 m/s2.
Two satellites of the same mass are in circular orbits of differentradii above the Earth's equator. what is the ratio of the satellites angular momenta
explain the significance of rh in a hall sensor and using the hall sensor how would you prove that the charges that
The figure below shows a 6.2 kg rod of 1.00 m in length, hinged to a vertical wall and supported by a thin wire. The wire and rod each make angles of 45° with the vertical. When a 10.0 kg block is suspended from the midpoint of the rod, the tension T..
during the first 18 minutes of a 1 hour trip a car has an average speed of 11 ms. what must the average speed of the
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