Andy, a physics student, has heard that Archimedes' principle says that objects weigh less in water. He wonders what would happen if he puts a beaker with water on a scale and attached a kilogram mass to a sprig scale (of course that reading is about 10 N), and then allows the mass to be immersed in the water in the beaker. The beaker and water weigh 20 N. Explain to Andy what each scale will read when Andy puts the kilogram completely into the water.