The voltage between the cathode and the screen of a television set is 30 kv. if we assume a speed of zero for an electron as it leaves the cathode, what is its speed (m/s) just before it hits the screen? 1.48.7 x 10 2.23x 10 3. 10.2x 10 4.5.2x 105 5. 16.2x 10

Asilver dollar is dropped from the top of a building that is 1324 feet tall. use the position function below for free-falling objects. s(t) = −16t2 + v0t + s0 (a) determine the position and velocity functions for the coin. s(t) = v(t) = (b) determine the average velocity on the interval [1, 2]. ft/s (c) find the instantaneous velocities when t = 1 second and t = 2 seconds. v(1) = ft/s v(2) = ft/s (d) find the time required for the coin to reach the ground level. (round your answer to three decimal places.) t = s (e) find the velocity of the coin at impact. (round your answer to three decimal places.) ft/s