Which one of the following parenting factors is associated with improved iq scores in children? a. strict discipline b. a stable home and varied activities c. early instruction in reading d. lenient discipline and fewer rules c is incorrect

Asap and show ! a 14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.