Ahorizontal wheel rotates at 4.66 rev/s. for a point 0.4 m from the center
of the wheel,
(a) the speed in m/s
(b) the centripetal acceleration?

Explanation:

For this we will need the circumference of the cirkel the point makes. We know that it is located at 0.4 m from the center so r=0.4. In case you didn't you can use 2×pi×r to find the circumference of a cirkel. so plugging r=0.4 we get 4/5pi meters. In one second the wheels spins 4.66 times, a point on that wheel would cover 4.66×(4/5pi)=11.711... meters each second. So 11.711m/s

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.