Where dose the kinetic energy people get during the sport come from?​

Which seasons are the northern and southern hemispheres experiencing in the image? it is summer in both the northern and southern hemispheres. it is summer in the northern hemisphere and winter in the southern hemisphere. it is winter in both the northern and southern hemispheres. it is winter in the northern hemisphere and summer in the southern hemisphere.

Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity

Is a copper wire a conductor or insulator?