SJte3/4a rocket science

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Across
  1. 2. 3,2,1- It's also in a vertical direction
  2. 3. related to center of pressure rhymes with flag
  3. 5. talks about rest and motion, created by sir isaac newton
  4. 6. created by sir isaac newton, f equals ma
  5. 7. self propelled and is a part of a marvel universe superhero ------ racoon
Down
  1. 1. Every action has an equal opposite reaction
  2. 4. Related to speed ends with city