pulls a 9 kilogram box with a rope. The rope makes an angle of 30 degrees from the horizontal. They pull with a constant tension force equal to 297 Newtons. They pull the box a distance of 4 meters to the right and then let it go. It travels across the flat, friction-less ground. What speed does it move at once it is released?

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.

a. vertically

explanation:

i tried it and took the test

if im wrong then we have different tests