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erastovalidia [21]
3 years ago
11

Cindy pours cool milk into a hot bowl of oatmeal and then stirs it with a room-temperature spoon. Which substance will have heat

flow from it to the other substances? the milk
the spoon
the oatmeal
the surrounding air
Physics
2 answers:
djverab [1.8K]3 years ago
6 0
Answer:
The oatmeal

Explanation:
It’s the oatmeal that had the most thermal energy out of the four options. The milk was cool, the spoon was at room temperature and the surrounding air was also at room temperature, leaving the heat from the oatmeal will travel to those substances.

I hope this helps!
Pavlova-9 [17]3 years ago
6 0
The answer is “the oatmeal”
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Answer:

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Explanation:

T₁ = Initial temperature of the house = 35°C

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m = mass of air in the house = 800 kg

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Cp = Specific heat at constant pressure = 1.0 kJ/kgK

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⇒q = 8640000 J

Average rate of hear removal

Q=\frac{q}{\Delta t}\\\Rightarrow Q=\frac{8640000}{2280}\\\Rightarrow Q=3789.47\ W

COP=\frac{Q}{W}\\\Rightarrow W=\frac{Q}{COP}\\\Rightarrow W=\frac{3789.47}{2.8}\\\Rightarrow W=1353.38\ W

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3 years ago
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Answer:

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3 years ago
In single-slit diffraction, what happens to the dark fringes if the slit gets wider?.
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On the screen, coloured fringes will be created if the white light replaces monochromatic light.

<h3>What is diffraction?</h3>

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brainly.com/question/16749356

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Answer:

In plotting position versus time it can be seen that the green line represents  a fixed position at the various times given - the other lines represent changing position with time

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Two children weighing 40 lbs and 50 lbs each are balancing their teacher weighing 120 lbs on a seesaw. The teacher is sitting 5
ExtremeBDS [4]

Answer:

5 feet

Explanation:

First lets imagine that the values are in meters and kg, to make it easier for me.

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The force created by the teacher is 120 × 5 = 600N.

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The force created by the 50 kg student is 50 × 8 = 400N

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The force that needs to be created by the 40 kg student is 600N - 400N = 200N.

To create that force that student needs to sit 200 ÷ 40 = 5m.

So the 40 lbs student is sitting 5 feet from the fulcrum.

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