) The current world record for the 100 m dash is 9.58 s, held by Usain Bolt of Jamaica. Calculate his average speed in miles per hour. Note that 1 mile = 1.609 km.

Aprojectile is launched horizontally 10m above the ground and with an initial velocity of 15 m/s. a) sketch the trajectory using an appropriate coordination system. b) how long for the projectile to reach the ground. c) how far did projectile travel horizontally before striking the ground. d) determine the projectilex & y position at t-1.3s e) determine the magnitude and direction of projectile velocity at t= 1.3s f) determine the magnitude and direction of projectile acceleration at t-1.3s

The density of a liquid could be found by using

Which is not one of the major climate zones? question 3 options: rain forest polar tropical temperate