Column a is on the x axis, and column b is on the axis which titles should replace a and b? column a should be "time," and column b should be "position column a should be "position and column b should be "time. column a should be velocity and column b should be "speed." column a should be speed." and column b should be velocity

kinetic

i'm so sorry if this is wrong i'm only in 6th grade xd

i think the answer would be reserve.

if the person is shown to have +90n, then ans is -10n.

if the person is shown to have -90n, then ans is +10n.

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.