14. [-/2 Points] DETAILS OBINPHYS8 4.P.029. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A scale reads 160 N when a piece of copper is hanging from it. What does it read (in N) when it is lowered so that the copper is submerged in water? Need Help? Read It Submit Answer 15. [-/2 Points] DETAILS OBINPHYS8 4.P.030. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A rectangular block of ice with dimensions 2 m by 2 m by 0.2 m floats on water. A person weighing 950 N wants to stand on the ice. Would the ice sink below the surface of the water? Yes No Need Help? Read It Submit Answer 16. [-/2 Points] DETAILS OBINPHYS8 4.P.031. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A dentist's chair with a person in it weighs 1800 N. The output plunger of a hydraulic system starts to lift the chair when the dental assistant's foot exerts a force of 50 N on the input piston. Neglecting any difference in the heights of the piston and the plunger, what is the ratio of the area of the plunger to the area of the piston? plunger = Apiston Need Help? Read It