Each value in nature has a number part, called its____ and a dimension, or unit
1 answer:
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Hello!
A portable DVD player requires six 1.5-volt batteries to operate. If the resistance in the circuit is 7.2 ohms, what is the current?
Data:
We have six 1.5 volt batteries, soon, your tension (V)
V = 1.5 * 6 = 9 Volts
R (resistance) = 7.2 ohms
I (Current intensity) = ? (in Amps)
Solving (Ohm's First Law):
Answer:
The current is 1.25 amps
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Answer:
ΔS= 10.66 J/K
Explanation:
Given that
For hot reservoir :
T₁= 500 K
For cold reservoir :
T₂= 300 K
Energy transfer ,Q= 8000 J
The entropy change for the Hot reservoir :
The entropy change for the cold reservoir :
The entropy for universe
ΔS=ΔS₁+ΔS₂
ΔS= - 16 + 26.66 J/K
ΔS= 10.66 J/K