Light waves are traveling through glass. if the wavelength of some part of the light wave is 4 x 10^(-7) m and the frequency of that light is 5 x 10^(14) hz, what is the speed of light through the glass? 8 x 10^(-22) m/s 1.25 x 10^21 m/s 1 x 10^7 m/s 2 x 10^8 m/s

If a rock is thrown upward on the planet mars with a velocity of 10 mys, its height in meters t seconds later is given by y − 10t 2 1.86t 2 . (a) find the average velocity over the given time intervals: (i) [1, 2] (ii) [1, 1.5] (iii) [1, 1.1] (iv) [1, 1.01] (v) [1, 1.001] (b) estimate the instantaneous velocity when t − 1.