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3 years ago

Which of the following best describes what alveolar are

2 answers:

6 0

Alveoli are tiny balloon shaped structures and are the smallest passageway in the respiratory system. The alveoli are only one cell thick, allowing the relatively easy passage of oxygen and carbon dioxide (CO2) between the alveoli and blood vessels called capillaries.

Nikitich [7]3 years ago

3 0

Yeettttttt usuwhebejdid

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An electron that has a velocity with x component 1.6 × 10^6 m/s and y component 2.6 × 10^6 m/s moves through a uniform magnetic

ioda

Answer:

(a)

$\overrightarrow{F}=4.58\times10^{-14}\widehat{K}N$

(b) $\overrightarrow{F}=- 4.58\times10^{-14}\widehat{K}N$

Explanation:

Vx = 1.6 x 10^6 m/s

Vy = 2.6 x 10^6 m/s

Bx = 0.024 T

By = - 0.14 T

charge of electron, q = - 1.6 x 10^-19 C

charge of proton, q = 1.6 x 10^-19 C

(a) Force on electron is given by

$\overrightarrow{F}=q(\overrightarrow{V}\times \overrightarrow{B})$

Substituting the values

$\overrightarrow{F}=-1.6\times10^{-19}{\left ( 1.6\times 10^{6}\widehat{i}+2.6 \times 10^{6}\widehat{j} \right )\times \left ( 0.024\widehat{i}-0.14\widehat{j} \right )}$

$\overrightarrow{F}=4.58\times10^{-14}\widehat{K}N$

(b) Force on proton is given by

$\overrightarrow{F}=q(\overrightarrow{V}\times \overrightarrow{B})$

Substituting the values

$\overrightarrow{F}=1.6\times10^{-19}{\left ( 1.6\times 10^{6}\widehat{i}+2.6 \times 10^{6}\widehat{j} \right )\times \left ( 0.024\widehat{i}-0.14\widehat{j} \right )}$

$\overrightarrow{F}=- 4.58\times10^{-14}\widehat{K}N$

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2 years ago

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Dimas [21]

Answer:

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Explanation:

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2 years ago

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A turtle moves at an average speed of 0.2m/S towards the finish line that is 80m away from the starting line. A rabbit,racing wi

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2 years ago

Night vision glasses detect energy given off by objects as (2 points)

Allushta [10]

The answer here would be infrared waves. Hot objects and humans give off heat in the form of infrared light, thermal imaging technology in the goggles enable them to catch this light emitted by these objects

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2 years ago

If Fg=mg solve for g

Bas_tet [7]

Answer:Fg = mg however newtons second law states that the net force acting on an object is equal to it's mass times it's acceleration so what allows us to say that Fg = mg because certainly not for every single situation the net force is going to equal to the force of gravity please explain... what allows us to say Fg = mg

Source https://www.physicsforums.com/threads/fg-mg-questioned.336776/

Explanation:

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2 years ago