What is this article mainly about? A. Mario Andretti and his son, Michael, were the first set of father-son opponents ever in IndyCar history. B. Mario Andretti and his twin brother Aldo were born during wartime in 1940 and lived in a part of Italy that later became part of Yugoslavia. C. Mario Andretti made millions of dollars, was placed in four Halls of Fame, and is believed by many to be the best racecar driver of all time. D. Mario Andretti has written three autobiographies and has been the subject of eight books written by other authors.

Which fators influence ocean currents

Carbon-14 is a radioactive element that undergoes beta decay. which force is responsible for allowing carbon-14 to become stable? electromagnetic gravitational weak nuclear strong nuclear

The base of a 50-meter tower is at the origin; the base of a 50-meter tree is at (0, 50, 0). the ground is flat and the z-axis points upward. the following parametric equations describe the motion of six projectiles each launched at time t = 0 in seconds. (i) r (t) = (50 + t2)k (ii) r (t) = 2t2 j + 2t2k (iii) r (t) = 50 i + 50 j + (50 − t2)k (iv) r (t) = 2t j + (50 − t2)k (v) r (t) = (50 − 2t) i + 2t j + (50 − t)k (vi) r (t) = t i + t j + tk (a) which projectile is launched from the top of the tower and goes downward? at time t = , the projectile hits the ground at point (x, y, z) = . (b) which projectile hits the top of the tree?