How can an object become positively charged?
2 answers:
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Answer: Varying amounts of the Moon's lit surface being visible from Earth.
Explanation:
Phases of the moon can be defined as the different shapes of the moon visible from the Earth. This happens because sun lits up the face of moon and due to different position of moon in the orbit around earth, varying portion of the lit surface of the moon is visible from Earth. Refer to the diagram below:
40 J/g is the heat of vaporization of the liquid.
Answer: Option D
<u>Explanation:</u>
Given that mass of liquid sample: m = 10 g
And, Specific heat of the liquid: S = 2 J/g K
Also, the increase in the temperature of the liquid,
Therefore, the total amount of heat energy required is given by:
According to the given data in the question,
Total heat energy supplied, q = 400 J
Rest of heat would be
Now, 200 J vaporizes the mass, half of the liquid from full portion boiled away. So,
Latent heat of vaporization of the liquid is . It can be calculated as below,