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marta [7]
2 years ago
14

PLEASE HELP ME ALREADY!!! MAX POINTS RANDOM ANSWERS WILL BE REPORTED!!!

Physics
2 answers:
egoroff_w [7]2 years ago
6 0

B. Energy is destroyed because animals are higher levels do not need as much energy

This statement says energy is destroyed when we should know that energy cannot be created or destroyed. It can simply be transferred while doing numerous tasks, movement and respiration or the energy is egested and remains in dead organisms which passes to decomposers. Respiration releases energy from food in the form of adenosine triphosphate and heat.

horsena [70]2 years ago
3 0

Answer:

C. Energy is used for life processes (e.g. Movement, breathing, etc.)

Explanation:

As we pass from one trophic level to the next, only 10% of energy is transferred from the first trophic level to the next. This is because a lot of energy is lost to the surroundings and rest is utilised by the organism.

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A 2.03 kg book is placed on a flat desk. Suppose the coefficient of static friction between the book and the desk is 0.602 and t
diamong [38]

Answer:

11.98 N

Explanation:

Normal force =   mg =  2.03 * 9.81

coeff of static friction must be overcome for the book to begin moving

       .602 = F / (2.03 * 9.81)   = 11.98  N

5 0
3 years ago
An imaginary dense star z has 1/5 the radius of earth, but 1000 times the earths. how much would a mass weighing 1.0n on earth w
andrew11 [14]
A 1-newton mass on earth would be 1000 newtons on star Z.

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8 0
3 years ago
What is one of the drawbacks to the use of solar energy for generating electricity?
-Dominant- [34]
Solar energy is one of the renewable energy sources that is invested around the world because of its large potential. the sun as a free source can sometimes bring a drawback. one of the drawbacks is that it cannot be harnessed when storms or rains are present in the weather. it is also expensive and young.
7 0
3 years ago
What is the net force on the box?
omeli [17]

Answer:

The magnitude of the force net is an acting object multiplied by acceleration of the object

5 0
3 years ago
An engineer is investigating energy loss through windows. The windowpane of interest is 0.650 cm thick, has dimensions of 1.19 m
krok68 [10]

Answer:

7908.92307 W

683330953.248 J

Explanation:

k = Heat conduction coefficient = 0.8 W/(m·°C)

A = Area = 1.19\times 2.25\ m^2

l = Thickness = 0.65 cm

T_2 = 24°C

T_1 = 0°C

Rate of heat transfer is given by

Q=\frac{kA(T_2-T_1)}{l}\\\Rightarrow Q=\frac{0.8\times 1.19\times 2.25(24-0)}{0.65\times 10^{-2}}\\\Rightarrow Q=7908.92307\ W

The rate of heat transfer is 7908.92307 W

Amount of energy is given by

E=Qt\\\Rightarrow E=7908.92307\times 24\times 3600\\\Rightarrow E=683330953.248\ J

The energy transferred through the window in one day is 683330953.248 J

8 0
3 years ago
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