75,600J
336,000J
340,200J
378,000J
Correct answer is A
No explanation has been provided for this answer.
1.2
12.0
120.0
1200.0
Correct answer is C
No explanation has been provided for this answer.
The heat capacity of a substance is the energy
required to raise the temperature of a unit mass of the substance by one degree.
required to raise the temperature of the substance by one degree
absorbed by the substance at constant temperature
lost by a unit mass of the substance.
Correct answer is B
No explanation has been provided for this answer.
50.006m
50.060m
51.600m
51.200m
Correct answer is A
No explanation has been provided for this answer.
Iron at 30oC feels colder to the hand than wood at 28oC because
their linear expansivities are not equal.
the temperature of the iron is higher than that of the wood
iron is a better radiator of heat than wood
iron conducts heat more quickly from the hand than wood
Correct answer is D
No explanation has been provided for this answer.