100oC
75oC
50oC
45oC
Correct answer is C
\(\theta = \frac{Pt}{MC} = \frac{400 \times 20}{0.4 \times 400} = 50^o\)
The diagram above shoes three forces F1, F2 and F3, which of the following equations is correct?
F3 = F1 + F2
F2 = F1 + F3
F1 = F2 - F3
F1 = F2 + F3
Correct answer is D
No explanation has been provided for this answer.
mass 100kg the temperature rises by 1k
mass 1kg, the temperature by 1000K
mass 1kg, the temperature rises by 1K
mass 100kg, the temperature rises by 1000k
Correct answer is C
The specific heat capacity of a body is the heat energy required to raise a body of mass 1kg through a temperature of 1K.
PV = \(\frac{constant}{T}\)
\(\frac{P}{T} = Constant\)
\(\frac{P}{V} = \frac{constant}{T}\)
\(\frac{I}{T} = \frac{constant}{PV}\)
Correct answer is D
No explanation has been provided for this answer.
In a thermos flask, heat loss by radiation is minimizes by the
silvered surfaces
vacuum within the doubled walls
plastic stopper
cork support
Correct answer is A
No explanation has been provided for this answer.
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