Two pointlike particles moving in three dimensions have masses m and m re- spectively, and interact via a potential v(i ). find hamilton's equations of motion for the particles.

car a and b are moving in opposite directions

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force tends to be low and long diustance masses are high

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1.            c. is smaller

2.            d) concrete operational

3.            b) interaction with the environment – the children interact with their environment can them learn more.

4.            a) parents who reason openly with children can limit a child’s cognitive ability.