existen

third-person plural present indicative of existir

calcular

to calculate

a

• Prep

  1. to, toward; indicating direction of motion
  2. introducing an indirect object
  3. used to indicate the time of an action
  4. to, until; used to indicate the end of a range
  5. by, on, by means of; expresses a mode of action
  6. for; indicates price or cost

• Article
• Noun
• Pron

da

of the; from the

gravidade

gravity (result of gravitational force)

en

• Prep

  1. in
  2. when preceding a verb or a complement of a verb it can denote an unfinished or continued action

• Adv

cidades

plural of cidade

do

of the; from the; 's