Tom has built a large slingshot, but it is not working quite right. He thinks he can model the slingshot like an ideal spring with a spring constant of 55.0 N / m . When he pulls the slingshot back 0.235 m from a nonstretched position, it just does not launch its payload as far as he wants. His physics professor "helps" by telling him to aim for an elastic potential energy of 17.0 J . Tom decides he just needs elastic bands with a higher spring constant. By what factor does Tom need to increase the spring constant to hit his potential energy goal

He needs to increase the spring constant by a factor of 11.2

Explanation:

Given the present spring constant of k = 55N/m and stretching distance of x = 0.235m, he must make a slingshot of new spring constant if he must achieve his goal of aiming for 17J slingshot.

E = 1/2×kx²

k= 2E /x² = 2×17/(0.235)² = 34/0.0552 = 616N/m

This new value for I compare to the old one is 616/55 = 11.2

So the new slingshot must have a spring constant 11.2 time as great as the former one.

tube or goog will be great resources to find the answer to the question that you're asking

float.

archimedes' principle

denser than water sinks in water.

denser than mercury would sink in it