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.
Reaction wood of broad-leaved trees, which occurs on the upper side of tilted tree trunks, is called tension wood. The reaction wood that forms in conifers, called compression wood, occurs on the lower side of inclined trees.uttress Formation. Even more dramatic effects of wind on tree form occur in the tropics. Here, the trunks of trees commonly develop enlarged bases or fluted buttresses. These structures effectively support large trees on shallow soils where anchorage by the roots is poor.