Which describes an object's speed when free falling in a vacuum? The object accelerates until it reaches its terminal velocity.
The object falls at a constant speed because only one force acts on it.
The object falls faster and faster until it strikes the ground.
The object speeds up and then stops when air resistance equals gravity.

the answer is a 3.8cm

explanation:

iron would move it is magnetic there is a mag field around the current in the wire

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.

it is a negative acceleration