the efficiency of simple machine is 80%when a load of 60N is moved by 20N by how much does the load move when 20N moves 10CM​

What is an endocrine function? (apex) a.esophageal glands release mucus into the esophagus b.salivary glands release saliva into mouth c.swear glands release sweat to the skin d.the pineal gland releases melatonin into the bloodstream

Can yall plz me on this question im having a hard time think about it

What are the characteristics of subsystem