Question 3 unsaved how much current flows through a circuit in which the voltage is 120 volts and a resistance of 8 ohms? question 3 options: 15 amps 960 amps 15 ohms 960 volts

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.