Physics, 01.12.2020 16:20 elizabethwaller8104
Questão 1. Uma ducha com água aquecida eletricamente, de potência 4,20 kW, ou seja, que utiliza energia elétrica a uma taxa 4,20 kJ por segundo, liga automaticamente quando a torneira é aberta permitindo uma vazão mínima de 3,00 litros de água por minuto. A partir daí, à medida que a torneira é aberta para permitir vazões maiores, o aquecedor elétrico permanece operando à mesma potência. A vazão máxima desta ducha é de 6,60 litros de água por minuto. (a) Qual a temperatura máxima possível da água liberada pela ducha em um dia de inverno, em ◦C, no qual a água que entra na ducha está a 15,0 ◦C? (b) Se a ducha está ligada, qual a temperatura mínima possível da água liberada em um dia de verão, em ◦C, no qual a água que entra na ducha está a 24,0 ◦C?
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Questão 1. Uma ducha com água aquecida eletricamente, de potência 4,20 kW, ou seja, que utiliza ener...
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Mathematics, 11.12.2019 18:31
