Physics, 19.07.2019 20:20, tingzontumbler9061
Arail gun uses electromagnetic forces to accelerate a projectile to very high velocities. the basic mechanism of acceleration is relatively simple and can be illustrated in the following example. a metal rod of mass 50.0 g and electrical resistance 0.300 \omega rests on parallel horizontal rails that have negligible electric resistance. the rails are a distance l = 7.00 cm apart. the rails are also connected to a voltage source providing a voltage of v = 5.00 v.
the rod is placed in a vertical magnetic field. the rod begins to slide when the field reaches the value b = 0.210 t. assume that the rod has a slightly flattened bottom so that it slides instead of rolling. use 9.80 m/s^2 for the magnitude of the acceleration due to gravity.
find mu_s, the coefficient of static friction between the rod and the rails.
Answers: 2
Physics, 22.06.2019 10:30, janeou17xn
Find the magnetic field a distance r from the center of a long wire that has radius a and carries a uniform current per unit area j in the positive z direction.
Answers: 2
Physics, 22.06.2019 17:00, Gabriel134
Two conductors, a and b, are each in the shape of a tetrahedron. but of different sizes. they are charged in the following manner: 1. tetrahedron a is charged from an electrostatic generator to charge q. 2. tetrahedron a is briefly touched to tetrahedron b. 3. steps 1 and 2 are repeated until the charge on tetrahedron b reaches a maximum value. if the charge on tetrahedron b was q/4 after the first time it touched tetrahedron a. what is the final charge qbmax on tetrahedron b?
Answers: 2
Physics, 22.06.2019 20:00, scott5315
Aspectroscope breaks light up into its colors, allowing scientists to analyze light from the solar system and universe. by studying the spectral line patterns, widths, strengths and positions, scientists can determine the speed, position, and of celestial bodies. a) age b) origin c) rotation d) temperature
Answers: 1
Arail gun uses electromagnetic forces to accelerate a projectile to very high velocities. the basic...
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