Homework Convert the following. a) 0.785 kg to mg 　 c) 7.56 mm to cm   　 　   d) 0.0300 h to s 　 　 e) 5 km/h to m/s 　 　 f) 60 m/s to km/h   Page 349: Questions 8, 9    Students should be looking for parts and designs for a car that can be moved 3m by a balloon.