What is the frequency of yellow light with a wavelength of 580 nm? 1. 5.2 × 1014 hz 2. 1.9 × 10−17 hz 3. 5.2 × 1016 hz 4. 5.2 × 1012 hz 5. 1.9 × 10−15 hz?

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