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