// Numbas version: exam_results_page_options
{"name": "FIS5047_S5_Numbas", "metadata": {"description": "", "licence": "None specified"}, "duration": 0, "percentPass": 0, "showQuestionGroupNames": false, "shuffleQuestionGroups": false, "showstudentname": true, "question_groups": [{"name": "Group", "pickingStrategy": "all-ordered", "pickQuestions": 1, "questionNames": ["", ""], "variable_overrides": [[], []], "questions": [{"name": "Torque", "extensions": [], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "contributors": [{"name": "Ivan Munoz", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/18334/"}], "tags": [], "metadata": {"description": "", "licence": "None specified"}, "statement": "<p>Las llantas de un autom&oacute;vil de {masa} kg tienen {diametro} m de di&aacute;metro y<br/>los coeficientes de fricci&oacute;n estatico y cinetico con la superficie de la carretera son<br/>$\\mu_s= ${roces} y $\\mu_k =$ {rocek}, respectivamente. Suponiendo que el peso es<br/>distribuido uniformemente en las cuatro ruedas.</p>", "advice": "<p><strong>a</strong><strong>)&nbsp;</strong>En cada rueda, la masa sera $m=\\frac{\\var{masa}}{4}$. Entonces la fuerza de roce $F_r=\\mu_s N=\\mu_s \\frac{m}{4} g=\\var{roces}\\cdot\\frac{\\var{masa}}{4}\\cdot \\var{g}$. Por lo tanto&nbsp;</p>\n<p>$\\tau=\\frac{D}{2} F_r=\\var{diametro}*\\var{roces}*\\frac{\\var{masa}}{4}*\\var{g}$.</p>\n<p></p>\n<p><strong>b) </strong>Es lo mismo de parte a) pero hay que considerar el coeficiente de roce cin&eacute;tico</p>", "rulesets": {}, "builtin_constants": {"e": true, "pi,\u03c0": true, "i": true}, "constants": [], "variables": {"masa": {"name": "masa", "group": "Ungrouped variables", "definition": "random([1500,1600,1700,1800])", "description": "", "templateType": "anything", "can_override": false}, "diametro": {"name": "diametro", "group": "Ungrouped variables", "definition": "random([3/10, 4/10,5/10])", "description": "", "templateType": "anything", "can_override": false}, "roces": {"name": "roces", "group": "Ungrouped variables", "definition": "random([0.2, 0.3, 0.4])", "description": "", "templateType": "anything", "can_override": false}, "rocek": {"name": "rocek", "group": "Ungrouped variables", "definition": "roces-0.04", "description": "", "templateType": "anything", "can_override": false}, "g": {"name": "g", "group": "Ungrouped variables", "definition": "9.8", "description": "", "templateType": "anything", "can_override": false}}, "variablesTest": {"condition": "", "maxRuns": 100}, "ungrouped_variables": ["masa", "diametro", "roces", "rocek", "g"], "variable_groups": [], "functions": {}, "preamble": {"js": "", "css": ""}, "parts": [{"type": "numberentry", "useCustomName": false, "customName": "", "marks": 1, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Calcule el m&aacute;ximo torque que puede ejercer el motor sobre un rueda motriz sin girar la rueda. Puedes asumir que el autom&oacute;vil est&aacute; en reposo.</p>", "minValue": "diametro*roces*masa*g/8*1.1", "maxValue": "diametro*roces*masa*g/8*0.9", "correctAnswerFraction": false, "allowFractions": false, "mustBeReduced": false, "mustBeReducedPC": 0, "displayAnswer": "", "showFractionHint": true, "notationStyles": ["plain", "en", "si-en"], "correctAnswerStyle": "plain"}, {"type": "numberentry", "useCustomName": false, "customName": "", "marks": 1, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Calcule el m&aacute;ximo torque que puede ejercer el motor sobre un rueda motriz si la rueda gira.&nbsp;</p>", "minValue": "diametro*rocek*masa*g/8*1.1", "maxValue": "diametro*rocek*masa*g/8*1.1", "correctAnswerFraction": false, "allowFractions": false, "mustBeReduced": false, "mustBeReducedPC": 0, "displayAnswer": "", "showFractionHint": true, "notationStyles": ["plain", "en", "si-en"], "correctAnswerStyle": "plain"}], "partsMode": "all", "maxMarks": 0, "objectives": [], "penalties": [], "objectiveVisibility": "always", "penaltyVisibility": "always"}, {"name": "momentum 1", "extensions": [], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "contributors": [{"name": "Amy Chadwick", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/505/"}, {"name": "Ivan Munoz", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/18334/"}], "tags": [], "metadata": {"description": "<p>Encuentre el momentum de los siguientes objetos usando $p= mv$.</p>", "licence": "Creative Commons Attribution 4.0 International"}, "statement": "<p>Encuentre la magnitud del momentum, $p$, de los siguientes objetos. Sus resultados deben estar en unidades de $N \\cdot s$</p>", "advice": "<p>El momentum $p&nbsp; = $ mass $\\mathrm{kg} \\ \\times $ velocity $\\mathrm{ms^{-1}}$.</p>\n<p>Esto nos entregara el momentum en $N\\cdot s$.</p>\n<h4>a)</h4>\n<p>Tenemos</p>\n<p>\\begin{align} <br/>p &amp; = \\frac{\\var{mass1}}{1000} \\times \\var{velocity1}, \\\\<br/>&amp;= \\var{precround(kg1*velocity1,3)} \\, \\mathrm{Ns}. <br/>\\end{align}</p>\n<p>La magnitud del momentum ser&aacute; $\\var{precround(kg1*velocity1,3)} \\, \\mathrm{Ns}.$</p>\n<h4>b)</h4>\n<p>Tenemos</p>\n<p>\\begin{align} <br/>p &amp; = (\\var{tonnes1} \\times 1000) \\times \\var{velocity2}, \\\\<br/>&amp; = \\var{precround(tonnes1*1000*velocity2,3)} \\, \\mathrm{Ns}. <br/>\\end{align}</p>\n<p>La magnitud del momentum ser&aacute; $\\var{precround(tonnes1*1000*velocity2,3)} \\, \\mathrm{Ns}.$</p>", "rulesets": {}, "builtin_constants": {"e": true, "pi,\u03c0": true, "i": true}, "constants": [], "variables": {"kg1": {"name": "kg1", "group": 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"precisionPartialCredit": 0, "precisionMessage": "You have not given your answer to the correct precision.", "strictPrecision": false, "showPrecisionHint": false, "notationStyles": ["plain", "en", "si-en"], "correctAnswerStyle": "plain"}], "partsMode": "all", "maxMarks": 0, "objectives": [], "penalties": [], "objectiveVisibility": "always", "penaltyVisibility": "always"}]}], "allowPrinting": true, "navigation": {"allowregen": true, "reverse": true, "browse": true, "allowsteps": true, "showfrontpage": true, "showresultspage": "oncompletion", "navigatemode": "sequence", "onleave": {"action": "none", "message": ""}, "preventleave": true, "startpassword": ""}, "timing": {"allowPause": true, "timeout": {"action": "none", "message": ""}, "timedwarning": {"action": "none", "message": ""}}, "feedback": {"showactualmark": true, "showtotalmark": true, "showanswerstate": true, "allowrevealanswer": true, "advicethreshold": 0, "intro": "", "end_message": "", "reviewshowscore": true, 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