A shopper weighs 4.00 kg of apples on a supermarket scale whose spring obeys Hooke's law and notes that the spring stretches a distance of 2.00 cm. (a) What will the spring's extension be if 7.00 kg of oranges are weighed instead? S cm (b) What is the total amount of work that the shopper must do to stretch this spring a total distance of 8.50 cm beyond its relaxed position? :13 Need Help? _