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swat32
3 years ago
15

All organisms need glucose or a source of

Physics
1 answer:
Marina CMI [18]3 years ago
7 0

Answer:

The sun.

Explanation:

Although the organisms on the earth who require energy are diverse, they truly all rely on one big source: the sun. Sunlight is vital to the process of photosynthesis performed by plants which supplies oxygen and glucose needed for the survival of all living beings on the Earth.

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Determine the speed of sound on a rainy day with the temperature of 18 degrees celsius..
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Answer:

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Explanation:

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Graphite crystals can be used as a lubricant.<br> TRUE<br> FALSE
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Calculate the heat, in kilocalories, that is absorbed if 183 g of ice at 0.0 ∘C is placed in an ice bag, melts, and warms to bod
boyakko [2]

Answer:

The total amount of heat needed will be Q_T=21.411kcal.

Explanation:

We will divide the calculation in two: First, the heat needed to melt the ice, and then the heat needed to warm the resulting liquid from 0°C to 37°C.

m=183g

l_f=80\frac{cal}{g} =334\frac{J}{g}

l_w=1\frac{cal}{g} =4.184\frac{J}{g}

<em>i) </em>The fusion heat will be:

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<em>ii)</em> The heat needed to warm the water from T_i=0^{\circ}C to T_i=37^{\circ}C will be:

Q_w=l_wm(T_f-T_i)=6771cal=6.771kcal

So, the total amount needed will be the sum of these two results:

Q_T=Q_f+Q_w=14.640kcal+6.771kcal=21.411kcal.

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