Labels:amusement park | ball | conformation | crt screen | lamp | lepton | monitor | person | sky | windowpane OCR: SCAP E VELOCITY The radial speed that particle larger body must attain order to 7.0 miles per second escape from the gravitational field of a planet or star The escape velocity from Earth miles/second. In order fora celest tial body to retain an atmosphere for long periods of time the mean velocity of the atmosphere molecules must be considerably pelow the escape velocity .5 miles per seconc SCAPE celestial rlong molet below
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