In infinite cylinder of radiusacarries a surface current that increases with time,~K=αtˆφ, whereαis a constant. Let thezaxis be the axis of the cylinder. Themagnetic field in the quasi-static approximation is given b

Awave with a frequency of 500 hz is traveling at a speed of 100 m/s.what is the wavelength?

How are positive ions different from neutral atoms

An athlete swings a ball, connected to the end of a chain, in a horizontal circle. the athlete is able to rotate the ball at the rate of 8.13 rev/s when the length of the chain is 0.600 m. when he increases the length to 0.900 m, he is able to rotate the ball only 6.04 rev/s. (a) which rate of rotation gives the greater speed for the ball? 6.04 rev/s 8.13 rev/s (b) what is the centripetal acceleration of the ball at 8.13 rev/s? m/s2 (c) what is the centripetal acceleration at 6.04 rev/s? m/s2