Type the function below into the Program Area of JES, then load the program and type into the Command Area compute(). What is being computed by the following?

def compute2():
gravity = 6.67384E-11
earthMass = 5.9736E24
earthRadius = 6371000
velocity = (2 * gravity * earthMass) / earthRadius
result = sqrt(velocity)
print "Escape velocity:"
print result