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FAHRENHEIT = 9:5 x 50 + 32 = 122°F
KELVIN = 50 + 273 = 323K (C)
6. 40° C = 313 K
40° C = 104 F (B)
8. mencari Δt
Q = m c Δt
45.000 joule = 1 kg x 900 j/kg x Δt
45.000 joule = 900 x Δt
50'C = Δt
Nyari suhu akhir :
t1 + Δt = t akhir
30 + 50 = t akhir
t akhir = 80 derajat celcius