Afather swings his child around in a circle. the source of the centripetal force that keeps the child moving in a circle is tension friction weight gravity

yes

ya te ayud espera

metric time was an attempt to create a standard unit of time based off of 10, but it never took off an is not included in the metric system (si)

they all get energy from eating other animals, dead animals to be more precise.

hienas tends to steal pray from other animals. crows and vultures tend to eat dead animals and leftovers.

hope it ,

bioteacher101