In fact, in the absence of air resistance, the amount of engery when the ball is held motionless above the floor equals the amount of energy at impact with the floor?? please help much appreciated ​

colorectal cancer may also develop from areas of abnormal cells in the lining of the colon or rectum. this area of abnormal cells is called dysplasia and is more commonly seen in people with certain inflammatory diseases of the bowel such as crohn's disease or ulcerative colitis.

third one with arrows on top of each other going the same direction