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3 years ago

Why is it important that the mouth and stomach are near the start of the digestive system? thx

Physics

2 answers:

xxTIMURxx [149]3 years ago

8 0

Because the mouth breaks down the food and the stomach uses acid to break food down even more

zaharov [31]3 years ago

8 0

Answer: To complete the process of digestion after the food is ingested by mouth.

Explanation:

The food that we eat is ingested by mouth and here the mechanical degradation of food takes place. This breaks down the food into smaller pieces.

Mouth also contains the enzyme that is responsible for the digestion of starch.

Then the food from the mouth reaches the stomach where various types of digestive juices and enzymes are secreted to digested the food.

Hence, mouth and stomach must be near in the digestive system.

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A 1.20 g sample of an unknown has a volume of 1.73 cm what is the density of the unknown

mariarad [96]

1.73 divide by 1.20=1.4416

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3 years ago

A proton with a speed of 3.2 x 106 m/s is shot into a region between two plates that are separated by a distance of 0.23 m. As t

harina [27]

Answer:

<h2>The magnitude of the magnetic is 0.145 T</h2>

Explanation:

Given :

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$F = q (v \times B)$

$F = qvB \sin \theta$

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When particle enter in magnetic field at the angle of 90° so particle moves in circle

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$F = \frac{mv^{2} }{r}$

Where $r =$ radius but in our case 0.23 m, $q = 1.6 \times 10^{-19}$ C

By comparing above two equation,

$B = \frac{mv}{qr}$

$B = \frac{1.67 \times 10^{-27} \times 3.2 \times 10^{6} }{1.6 \times 10^{-19} \times 0.23 }$

$B = 0.145$ T

5 0

2 years ago

A ball is thrown upward. what can be said about the system ?

Liula [17]

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2 years ago

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A jet with mass m = 90000.0 kg jet accelerates down the runway for takeoff at 1.6 m/s2.

leva [86]

This question requires the use of the equation of motion:
v = u + at [v is final velocity (0), u is initial velocity (24), a is acceleration, t is time (13)]
to calculate the acceleration. This can then be multiplied by the mass of the plane to obtain the net force via:
F = ma (F is force, m is mass, a is acceleration)
First, we calculate the acceleration:
0 = 24 + 13(a)
a = -24/13 m/s^2
The force is then:
F = 90000 * (-24/13)
F = -1.66*10^5 Newtons
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3 years ago

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garri49 [273]

Answer:

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Explanation:

$kai6417$

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2 years ago