Question

when you relax at rest with your left foot on one bathroom scale and your right foot on a similar scale, each of the scales will

Answer 1

register half of your total body weight.

When you are at rest and standing with both feet on the ground, the force of gravity acts equally on both feet. Each bathroom scale registers the force exerted on it by the corresponding foot. Since the force is distributed equally between the two scales, each scale will register half of your total body weight.