Question Number 12610 by tawa last updated on 26/Apr/17 | ||
$$\mathrm{A}\:\mathrm{steam}\:\mathrm{engine}\:\mathrm{of}\:\mathrm{efficiency}\:\mathrm{50\%}\:\mathrm{burns}\:\mathrm{a}\:\mathrm{1g}\:\mathrm{of}\:\mathrm{coal}\:\mathrm{to}\:\mathrm{produce}\:\mathrm{10000J} \\ $$$$\mathrm{of}\:\mathrm{energy}.\:\mathrm{if}\:\mathrm{it}\:\mathrm{burns}\:\mathrm{20g}\:\mathrm{per}\:\mathrm{sec},\:\mathrm{calculate}\:\mathrm{the}\:\mathrm{output}\:\mathrm{power}. \\ $$ | ||
Answered by mrW1 last updated on 27/Apr/17 | ||
$${P}=\mathrm{0}.\mathrm{5}×\mathrm{20}×\mathrm{10000}=\mathrm{100000}\:{Watt}=\mathrm{100}\:{kW} \\ $$ | ||
Commented by tawa last updated on 27/Apr/17 | ||
$$\mathrm{God}\:\mathrm{bless}\:\mathrm{you}\:\mathrm{sir}. \\ $$ | ||