If a simple machine reduces the strength of a force, what must be increased?
the distance over which the force is applied
the work the simple machine performs
the speed of the input force
the size of the simple machine

A is correct I just took this test :) hope this helps!

colorectal cancer may also develop from areas of abnormal cells in the lining of the colon or rectum. this area of abnormal cells is called dysplasia and is more commonly seen in people with certain inflammatory diseases of the bowel such as crohn's disease or ulcerative colitis.

no. dot product   =0 when vecs at right angles