The eighth season of American Idol premiered on January 13, 2009, and concluded on May 20, 2009. Judges Simon Cowell, Paula Abdul, and Randy Jackson continued to judge the show's contestants, along with Ryan Seacrest as host. Jamar Rogers, who was cut in the green mile round in this season of American Idol, would go on as contestant on the second season of NBC 's The Voice and made it to the Semi-Final round before being eliminated.
The forces acting on a falling leaf are A. air resistance and fluid friction. B. gravity and air resistance. C. gravity and static friction. D. weight and rolling friction. The forces acting on a falling leaf are : gravity and air resistance.
Why do leaves fall from trees in fall--and can they keep hanging on? Researchers say that they have pinpointed chemical signals that cause leaves, flowers, and fruit to fall from plants â and that, if blocked, might allow them to hang on forever. Scientists already knew there were cells in the tissue linking stems and branches that release chemicals that break down plant cells, causing leaves, et al, to fall off.