Błagam pomocy !!!
Jaką pracę wykonuje ciągnik o mocy 330 KM w czasie 2 h pracy
1 KM = 736 W
330KM = 330 * 736W = 242880W = P(moc)
t - czas pracy = 2h = 7200s
W - praca ciągnika = P * t = 242880W * 7200s = 1748736000 J = 1748736 kJ
1 KM ≈ 736 W
P = 330 KM = 330*736 W = 242880 W = 242880 J/s
t = 2 h = 2 *3600 s = 7200 s
W = ?
P = W / t
W = P * t
W = 242880 J/s * 7200 s
W = 1748736000 J ≈ 1,75 GJ
1 GJ = 10⁹ J
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1 KM = 736 W
330KM = 330 * 736W = 242880W = P(moc)
t - czas pracy = 2h = 7200s
W - praca ciągnika = P * t = 242880W * 7200s = 1748736000 J = 1748736 kJ
1 KM ≈ 736 W
P = 330 KM = 330*736 W = 242880 W = 242880 J/s
t = 2 h = 2 *3600 s = 7200 s
W = ?
P = W / t
W = P * t
W = 242880 J/s * 7200 s
W = 1748736000 J ≈ 1,75 GJ
1 GJ = 10⁹ J