Please help! Didn’t have right subject so i chose one that may be similar. Tides are caused by

the rotation of the Earth

the orbit of the Moon

gravitational pull of just the Sun

gravitational pull of the Sun and Moon

While carrying a heavy box up the stairs,you set the box on a step and rest. then you pick up the box and carry it to the top of the stairs. describe these actions in terms of balanced and unbalanced forces acting on the box.