Please help me I will give you the brain thing and extra points. Two dogs are pulling a disk, but the disk is not moving. The disk does not move because the forces are (select one: unbalanced, balanced, in motion, at rest.)

Use the drop-down menus to label each of the following changes p for physical change and c for chemical change. the substance changes to a new substance. the original substance can be recovered. the color changes. gas is produced and given off. the substance changes size, shape, or volume.