A tugboat pulls a ship with a constant net horizontal force of 6.85 x 103 N and causes
the ship to move through a harbor.
How much work does the tugboat do on the
ship if each moves a distance of 4.41 km ?

volume: 22

density: 7.04

asthenosphere and convection

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 answer is the first electromagnet (a). this is because it has more coils around the ferromagnetic material. increasing the number of coils increases the surface area in which the metal interacts with the current in the coil. this enables more atoms in the metal to become aligned hence becoming more magnetized.