{ "name": "Further applications of Integration", "order": 8, "challenges": [ { "id": "59a5801209a6acac5983b570", "title": "Arc length", "description": [ "" ], "challengeSeed": [ "" ], "tests": [ "" ] }, { "id": "59a5801209a6acac5983a718", "title": "Area of a surface of revolution", "description": [ "" ], "challengeSeed": [ "" ], "tests": [ "" ] }, { "id": "59a5801209a6acac5983a719", "title": "Applications to physics,engineering, economics, or biology", "description": [ "" ], "challengeSeed": [ "" ], "tests": [ "" ] }, { "id": "59a5801209a6acac5983a720", "title": "Probability", "description": [ "" ], "challengeSeed": [ "" ], "tests": [ "" ] } ] }