Reply asap : a substance that cannot be broken down into a simpler substance is called an
animal
organ system
element
organism

A substance that cannot be broken down into a simpler substance is called an element

Explanation: Some examples are Gold,Iron,Carbon, and etc.

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)