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physics!!!!!!!!!!!!!!!!!!!!!!!

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astarmathsandphysics:
1st thing in morning

astarmathsandphysics:
1) double the weight so double the extension. Remover 1/3 of the springs so times the extension by 3/2 c
2. mass of all the atoms in unit volume is mass of each atoms * number of atoms in unit volume
3. The densities are approxsimately the same
4. Because F=ma  - the soft ball decelerates more slowly so a is smaller and F is smaller

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