Calculate the energy transferred to the elastic potential energy store for the following:

1. A spring is extended by 0.43 m and has a spring constant of 83 N/m.

2. A spring with a spring constant of 278 N/m is stretched until its extension is 0.18 m.

3. A spring is extended by 0.32 m and has a spring constant of 436 N/m.

4. A spring with a spring constant of 290 N/m is stretched until its extension is 0.44 m.

5. A spring is extended by 0.39 m and has a spring constant of 218 N/m.

6. Find the extension of a spring with 6 J of energy in its elastic potential store and a spring constant of 68 N/m.

7. Find the spring constant of a spring that has been extended 0.34 m and has 6.1 J of energy in its elastic potential store.

8. Find the extension of a spring with a spring constant of 324 N/m and has 15 J of energy in its elastic potential store.

9. Find the spring constant of a spring that has been extended 0.49 m and has 39.3 J of energy in its elastic potential store.

10. Find the extension of a spring with 1 J of energy in its elastic potential store and a spring constant of 88 N/m.

11. Find the spring constant of a spring with 13.1 J of energy in its elastic potential store when it has been extended by 37 cm.

12. Find the extension of a spring with 59 J of energy in its elastic potential store and a spring constant of 454 N/m.

13. Find the spring constant of a spring with 22.8 J of energy in its elastic potential store when it has been extended by 0.47 m.

14. Find the extension of a spring with a spring constant of 295 N/m and has 14 J of energy in its elastic potential store.

15. Find the spring constant of a spring with 13.7 J of energy in its elastic potential store when it has been extended by 0.42 m.

1. 7.7 J

2. 4.5 J

3. 22.3 J

4. 28.1 J

5. 16.6 J

6. 0.42 m

7. 106 N/m

8. 0.304 m

9. 327 N/m

10. 0.151 m

11. 191 N/m

12. 0.51 m

13. 206 N/m

14. 0.308 m

15. 155 N/m

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