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mylen [45]
2 years ago
6

What is the ratio of the two quantities? Warning: different units!

Mathematics
2 answers:
mamaluj [8]2 years ago
4 0

Answer:

2:1

Step-by-step explanation:

Lets start by converting days to hours 5 days is 120 hours so 120:60 but we need to simplify and that would be 2:1

aliya0001 [1]2 years ago
4 0
The answer is 120:60 You have to convert the days to hours since it has to be the same unit or time measurement (1 day = 24 hours) (24 x 5 = 120) so it’s 120:60 and the simple form is 2:1. Hope that helped! ☺️
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3 years ago
1. How much heat is absorbed by a 50g iron skillet when its temperature rises from 10oC to 124oC? Joules
hoa [83]
<span>1. How much heat is absorbed by a 50g iron skillet when its temperature rises from 10oC to 124oC? Joules

Formula: Heat = mass * specific heat * ΔT

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specific heat of iron = 450 J/ kg °C
ΔT = 124°C - 10°C ¿ 114 °C

=> heat = 0.050kg * 450 J / kg°C * 114°C ≈ 2.6 J

2. If a refrigerator is a heat pump that follows the first law of thermodynamics, how much heat was removed from food inside of the refrigerator if it released 492J of energy to the room? Joules

The firs law of thermodynamics is conservation of energy => energy removed from inside of the refrigerator = energy released to the room

=> Answer = 492 J

3. How much heat is needed to raise the temperature of 45g of water by 63oC? Joules

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specific heat of water = 4186 J / Kg °C

heat = 0.045 kg * 4186 J/kg °C * 63°C = 11,867.31 J
</span>
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Step-by-step explanation:

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