a sound wave is described by d(y, t)=(0.0200mm)× sin[(8.96rad/m)y (3140rad/s)t π/4rad], where y is in m and t is in s.

the answer to your question is high voltage and high currency

its c its is a mixture of gases

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.

the best answer for these questions would be:

1.            c. is smaller

2.            d) concrete operational

3.            b) interaction with the environment – the children interact with their environment can them learn more.

4.            a) parents who reason openly with children can limit a child’s cognitive ability.