Two children are holding onto opposite ends of a rope. The one on roller skates is being swung around in circles. If the moving child weighs 75 lbs and he attains a constant speed of 12ft/sand the rope is 10ft long, how much tension is in the rope?

as a general rule, scissors have blades less than 6 in (15 cm) long and usually have handles with finger holes of the same size. shears have blades scissors used to cut hair or fabric must be much sharper

beta is electron from nucleus

something from nucleus has changed, but charge must be same for cons of charge

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.