Calculate the time required for bumper kart eight to travel with 10 m to collide with bumper car b. Calculate the speed of bumper car a following the collision of bumper car B, which is now has a velocity to the right of 3m/s.

Is the direction of motion for the bumper car A following the collision with bumper car B to the right, to the left, or bumper car A at rest?

Is the collision elastic? Justify your answer.

when insulating materials rub against each other, they may become electrically charged . electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. the material that gains electrons becomes negatively charged. the material that loses electrons is left with a positive charge.

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.