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3 years ago

Which of these is an autotroph?

Physics

2 answers:

Alexxx [7]3 years ago

8 0

Answer:

Algae

Explanation:

Autotrophs are those organisms that are able to make energy-containing organic molecules from inorganic raw material by using basic energy sources such as sunlight. Plants are the prime example of autotrophs, using photosynthesis.an organism that produces its own nutrients from inorganic substances or from the environment instead of consuming other organisms. an organism that obtains organic food molecules by eating other organisms or their byproducts and that cannot synthesize organic compounds from inorganic material.Along with plants and some bacteria and fungi, are autotrophs. Autotrophs are the producers in the food chain, meaning they create their own nutrients and energy. Kelp, like most autotrophs, creates energy through a process called photosynthesis.An organism that manufactures its own food from inorganic substances, such as carbon dioxide and ammonia. Most autotrophs, such as green plants, certain algae, and photosynthetic bacteria, use light for energy.

Hope that was helpful.Thank you!!!

Rashid [163]3 years ago

6 0

Which of what bruh .

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What is the purpose of the Bill of Rights?

NeX [460]

Answer:

i think it is To limit the rights of individual citizens

Explanation:

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3 years ago

Convert 100 degrees C to Kelvin SHOW ALL WORK

Tanzania [10]

Answer:

373 K

Explanation:

K = C° + 273

K = 100° + 273 ➡ 373 K

3 0

3 years ago

Two speakers that are 12.0 m apart produce in-phase sound waves of frequency 245 Hz in a room where the speed of sound is 340 m/

Cerrena [4.2K]

Answer:

a) Please see below as the answer is self-explanatory

b) 0.35 m

c) 0.7 m

Explanation:

a) As there is no difference in the path (because she is exactly at the midpoint between both speakers) that the waves do in order to reach to her ear, she listens both waves with the same intensity.

The same effect would be experimented, if the difference between paths, were an even multiple of the half of the wavelength.

b) In order to have a destructive interference, the difference in path (in the worst case) must be equal to an odd multiple of the half wavelength.

In any wave, there is a fixed relationship between speed, frequency and wavelength, as follows:

λ = v / f

Replacing with our givens for frequency (245 Hz) and v (340 m/s), we have:

λ = 340 m/s / 245 Hz = 1.4 m

The condition for destructive interference, is as follows:

Δd = d₂-d₁ = (2n + 1) *λ/2

For n=0, we have the shortest distance:

Δd = λ/2 = 0.7 m

So, in order to have such a path difference, she must walk exactly the half of this distance from the center, i.e., 0.35 m.

c) With the same reasoning as above, as the condition for constructive interference, as we have already mentioned, is that the path difference be at least one full wavelength, we can say:

Δd = d₂-d₁ = λ

So, in order to have such a path difference, she must walk exactly the half of this distance from the center, i.e., 0.7 m.

4 0

3 years ago

A fiber-optic rod consists of a central strand of material surrounded by an outer coating. the interior portion of the rod has a

algol13

Answer:

the index of refraction of the coating is 1.33

Explanation:

Given the data in the question;

refraction index of interior portion of the rod η $_{interior$ = 1.55

angle of incidence θ $_i$ = 59.5°

From Snell's law, we know that;

η $_{interior$ × sinθ $_i$ = η $_{coating$ × sinθ $_r$

where η $_{interior$ is the index of refraction of the rod ( material 1 )

θ $_i$ is the angle of incidence

η $_{coating$ is the index of refraction in outer coating ( material 2 )

θ $_r$ is the angle of refraction

so we substitute our values into the equation;

η $_{interior$ × sinθ $_i$ = η $_{coating$ × sinθ $_r$

1.55 × sin( 59.5° ) = η $_{coating$ × sin( 90° )

1.55 × 0.861629 = η $_{coating$ × 1

1.3355 = η $_{coating$ × 1

η $_{coating$ = 1.33 { 2 decimal places }

Therefore, the index of refraction of the coating is 1.33

5 0

3 years ago

Find the displacement of a hiker if he travels 3.0 m N and then 2.5 m S.

ankoles [38]

Answer:

.5 m N

Explanation:

Displacement just means distance from starting point, so moving 3 m north then 2.5 m south is the same as if you took 3 steps forward then 2.5 steps backward. The end point is only .5 away from the start point.

4 0

3 years ago