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guajiro [1.7K]
3 years ago
15

Because energy transfer is not 100% efficient across trophic levels, a maximum of about ____________% of energy and biomass avai

lable at one trophic level is available at the next.
Physics
1 answer:
DanielleElmas [232]3 years ago
6 0
10% is about how much travels down from level to level
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An airplane flies horizontally at constant speed in a straight­line direction. Its state of motion is unchanging. In other words
Alex_Xolod [135]

Answer:

sum of all forces on the air plane must be ZERO

So both forces must be of same magnitude

Explanation:

As we know that airplane is moving with uniform speed is horizontal plane is a straight line

so the motion of the air plane is uniform without any acceleration

So we will have

a = 0

acceleration must be zero

now by Newton's law

F_{net} = 0

F_1 + F_2 = 0

so sum of all forces on the air plane must be ZERO

7 0
3 years ago
Which are characteristics of concave mirrors? Check all that apply.
aalyn [17]

Answer:

the answers are 1 2 and 5!

5 0
4 years ago
if the outside air temperature increases during a flight at constant power and at a constant indicated altitude, the true airspe
Mazyrski [523]

If the outside air temperature increases during a flight at constant power and at a constant indicated altitude, the true airspeed will Increase and true altitude will increase.

<h3>What is Altitude?</h3>

This refers to the vertical elevation of  a body and is the measurement of the height above the sea or ground level. An airplane's altitude is directly proportional to the airspeed as long as the power is constant.

This means that increase in airspeed will lead to an increase in altitude and vie versa. This is the reason why as it runs fast, it can be observed that it begins to elevate.

Read more about Altitude here brainly.com/question/1159693

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5 0
1 year ago
Suppose you want to operate an ideal refrigerator with a cold temperature of − 15.5 °C , and you would like it to have a coeffic
tensa zangetsu [6.8K]

Answer:

15.65 °C

Explanation:

cold temperature (Tc) = -15.5 degree C = 273.15 - 15.5 = 257.65 kelvin

minimum coefficient of performance (η) = 8.25

find the maximum hot reservoir temperature of such a generator (Th)

η = \frac{Tc}{Th-Tc}

Th = Tc x (\frac{1}{η} + 1)

Th = 257.65 x (\frac{1}{8.25} + 1)

Th = 288.8 K

Th = 288.8 - 273.15 = 15.65 °C

8 0
3 years ago
Table 1 contains data about two completely ionised samples of pure boron.
WITCHER [35]

Answer:

I think it would most likely be 2... but not so sureee

7 0
3 years ago
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