Answer:
Explanation:
Given that,
The speed of light is 3×10⁸ m/s
We need to convert it into mi/hr.
Since, 1 mile = 1610 m
1 hour = 3600 s
So,
So, the required speed of light is .
A bulb of a thermometer is placed in your mouth. Which of the following explains why the level of the liquid rises in the thermo
meter?
hot air rises in the thermometer
heat energy changes into light energy
heat can change a solid to a liquid
the liquid expands when heated
hot air rises in the thermometer
heat energy changes into light energy
heat can change a solid to a liquid
the liquid expands when heated
2 answers:
Answer: the liquid expands when heated
Explanation:
The coefficient of thermal expansion of mercury is higher than the glass contained and its the only metal that is liquid at room temperature. These characteristics let us use it to read a change of temperature in a termometer as you can see in the image below.
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