James made a poster showing the two body systems that regulate a person's pulse. Which two systems did james represent on his poster? F nervous and circulatory G resiratoty and endocrine systems H circular and digestive system I digestive and nervous system

a:

by the combination of an unlimited number of elements

i'm pretty sure its b i might be wrong though!

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)