Why does the water in a swimming pool stay cool on a hot, sunny day? because radiation has no effect on water
because of convection
because the pool is a good insulator
because the Sun's rays are reflected off of the pool's surface

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.

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.

amplitude

hope this