Posted by **Work needed!** on Saturday, March 26, 2011 at 4:17pm.

The length of a spring increases by 7.2 cm from its relaxed length when a mass of 1.4 kg is hanging in equilibrium from the spring. (a) What is the spring constant? (b) How much elastic potential energy is stored in the spring? (c) A different mass is suspended and the spring length increases by 12.2 cm from its relaxed length to its new equilibrium position. What is the second mass?

## Answer This Question

## Related Questions

- Physics - A spring with spring constant k=100 (N/m) is at its equilibrium length...
- physics - a spring with spring constant k= 100N/m is at its equilibrium length a...
- Physics ( elestic potential energy) - A spring with a force of 5.2 N/m has a ...
- Physics - The staples inside a stapler are kept in place by a spring with a ...
- physics - The staples inside a stapler are kept in place by a spring with a ...
- Physics - A spring with a force constant of 5.4 N/m has a relaxed length of 2.63...
- Physics(Checking answer) - Sorry for the re-post but I really need to know this...
- Physics - It takes 6.7 J of work to stretch a spring 4.4 cm from its unstressed...
- Physics - What is the spring constant of a spring that stores 25 J of elastic ...
- Physics - Assume a spring has an un-stretched length Xo. Write an expression for...

More Related Questions