Physics, 31.05.2021 15:00 esnyderquintero
While driving in your car you notice that your car’s speedometer is not working, thus being a clever physics student you deduce the speed of the car from its rev meter. If the radius of the car is 35 cm and the rev meter reading is 800 rpm. What is the linear velocity of the car?
Answers: 3
Physics, 22.06.2019 11:20, leandrogarin37p2g5ds
Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.
Answers: 1
Physics, 22.06.2019 15:00, ttorres013
Consider a uniformly charged ring in the xy plane, centered at the origin. the ring has radius a and positive charge qdistributed evenly along its circumference. a)what is the direction of the electric field at any point on the z axis? . b)what is the magnitude of the electric field along the positive z axis? use k in your answer, where k=14πϵ0. d)the ball will oscillate along the z axis between z=d and z=−d in simple harmonic motion. what will be the angular frequency ω of these oscillations? use the approximation d≪a to simplify your calculation; that is, assume that d2+a2≈a2. express your answer in terms of given charges, dimensions, and constants
Answers: 2
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