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Pachacha [2.7K]
3 years ago
12

two students were talking student a was examining the lettuce leaves in a salad he was eating . he said, did you know im eating

energy from the sun student b was eating a hamburger she said, you know that am eating energy from the sun, too ? which statement below provides the best reasoning for energy transfer living systems
Engineering
1 answer:
Alex73 [517]3 years ago
4 0

Answer:

tropic levels(food web or chain)

Explanation:

this is because the sun gives energy to the plants(lettuce) and the animals(ham) eat the plant

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A composite wall is to be used to insulate a freezer chamber at -350C. Two insulating materials are to be used with conductiviti
choli [55]

Answer:

thickness1=1.4m

thickness2=2.2m

convection coefficient=0.33W/m^2K

Explanation:

you must use this equation to calculate the thickness:

L=K(T2-T1)/Q

L=thickness

T=temperature

Q=heat

L1=0.04*(0--350)/10=1.4m

L2=0.1(220-0)/10=2.2m

Then use this equation to calculate the convective coefficient

H=Q/(T2-T1)

H=10/(250-220)=0.33W/m^2K

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3 years ago
What is the average distance (in terms of R) between the mobile on the fringe of the serving cell and the second and third tier
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Answer:

do you need all work shown for this?

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3 years ago
As a global society with many political demarcations, what is the best way to preserve resources that are held in common? What s
MariettaO [177]

Answer:

kindly check the explanation section.

Explanation:

In order to be able to preserve resources that are common there is need for each countries in the world to agree and cooperate. Also, policies should be set and made the standard for all countries involved. The developed countries should come together with developing measures to make sure that there is mutual agreements between these countries to preserve common resources. For instance, the most common resource is the Ozone layer, the industrialization in developed countries causes the depletion of ozone.

The main problem that the kind of preservation entails is how to get money for countries that are not rich enough to follow the agreed laydown rules. Other problems are: differences in economies and each countries have their own ways of regulating and preserving resources.

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Whenever you are around construction sites, you should ?
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