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3 years ago

Does the epiglottis close the trachea when u swallow food

Physics

1 answer:

stiks02 [169]3 years ago

7 0

Answer:

A flap of tissue called (the epiglottis) sits over the top of the trachea. This flap blocks food and drink from going down into the trachea when you swallow. But in some cases, food or drink can enter the trachea. It may go down as you swallow.

Explanation:

HOPE THIS HELPED :)

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If a girl carries groceries up a flight of stairs, is she doing work on the groceries? Explain.

nikdorinn [45]

Answer:

Explanation:

Yes she is doing work. With or without the groceries, she is still doing work. She does more work with the groceries than without because Work is defined by F which is defined by mass. The mass increases with the groceries.

The work done is against the force of gravity.

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3 years ago

Please show your work.<br> 13. Convert 97 degrees fahrenheit to degrees celsius.<br> Need this now

yan [13]

Answer:

(97°F − 32) × 5/9 = 36.111°C

Explanation:Hope this helped

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3 years ago

The heat flux for a given wall is in the x-direction and given as q^n = 11 W/m^2, the walls thermal conductivity is 1.7 W/mK and

MrMuchimi

Answer:

$\frac{dT}{dx} = 6.47 ^oC/m$

Also as we can see the equation that heat flux directly depends on the temperature gradient so more is the temperature gradient then more will be the heat flux.

For positive temperature gradient the heat will flow outwards while for negative temperature gradient the heat will flow inwards

Explanation:

As we know that heat flux is given by the formula

$q^n = K\frac{dT}{dx}$

here we know that

K = thermal conductivity

$\frac{dT}{dx}$ = temperature gradient

now we know that

$q^n = 11 W/m^2$

also we know that

K = 1.7 W/mK

now we have

$11 = 1.7 \frac{dT}{dx}$

so temperature gradient is given as

$\frac{dT}{dx} = \frac{11}{1.7} = 6.47 K/m$

also in other unit it will be same

$\frac{dT}{dx} = 6.47 ^oC/m$

Also as we can see the equation that heat flux directly depends on the temperature gradient so more is the temperature gradient then more will be the heat flux.

For positive temperature gradient the heat will flow outwards while for negative temperature gradient the heat will flow inwards

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3 years ago

What physical process changed the geological area and composition of the earths ocean

Simora [160]

because the earths crust is thinner

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3 years ago

Read 2 more answers

SOMEONE HELP ASAP PLSS

kirill115 [55]

–0.05 m/s