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Eu não estou conseguindo fazer a conta dessa questão:
1. Alguns alimentos, como por exemplo o chocolate, que tem 5,18 kcal/g, são proibidos em caso de dietas alimentares para emagrecimento. A corrida, como atividade física, consome cerca de 2600 kJ/h. Assim sendo, quanto tempo uma pessoa que comeu uma barra de 200 g de chocolate deve correr para gastar a energia adquirida?
Dado: 1 cal = 4,18 J
a) 45 minutos b) 60 minutos c) 100 minutos
d) 120 minutos e) 160 minutos
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Answer #
Ainda tem duvida sobre Eu não estou conseguindo fazer a conta dessa questão:, entao utilize o campo de respostas dessa mesma pergunta para contra argumentar novas explicacoes.Answer this Question
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Answer #1
5,18kcal – 1g
E – 200g
E= 1036kcal
1 cal – 4,18cal
1036k – x
x= 4330kcal
t – 4330kJ
1h- 2600kJ
t=1,66h = 1,66. 60 min = 99,6min que é quase 100 minutos![:D](https://www.professoronline.net/wp-includes/images/smilies/icon_biggrin.gif)