1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Paraphin [41]
3 years ago
6

Where does digestion begin?

Physics
2 answers:
Dafna11 [192]3 years ago
8 0

Answer:

Digestion begins in the mouth, when you chew.

e-lub [12.9K]3 years ago
7 0
It begins when u eat the food
You might be interested in
PLS HELP ME I WILL GIVE YOU BRAINLIEST
ElenaW [278]
3. Millions of years ago, the Earth was not divided into 7 continents. It was only a very large land mass, the scientists named that one land mass “Pangaea”
4. If the tectonic plates are disturbed, they can cause mass earthquakes and tsunamis.
5. The ring of fire is a massive collection of volcanoes under the pacific ocean. They all form the shape of a ring, hence the name.
SORRY, I COULDNT ANSWER THE FIRST TWO QUESTIONS.
8 0
2 years ago
Read 2 more answers
An airplane maintains a speed of 585 km/h relative to the air it is flying through as it makes a trip to a city 815 km away to t
navik [9.2K]

Answer:

a)   t = 1.47 h    b) t = 1.32 h

Explanation:

a)  In this problem the plane and the wind are in the same North-South direction, whereby the vector sum is reduced to the scalar sum (ordinary). Let's calculate the total speed

     v = v_{f}f - v_{w}

     v = 585 -32.1

     v = 552.9 km / h

We use the speed ratio in uniform motion

     v = x / t

     t = x / v

     t = 815 /552.9

     t = 1.47 h

b)  We repeat the calculation, but this time the wind is going in the direction of the plane

      v=  v_{f}f - v_{w}

      v 585 + 32.1

      v = 617.1 km / h

      t = 815 /617.1

      t = 1.32 h

4 0
2 years ago
Suppose the electric field in some region is found to be E = kr3 ˆr, in spherical coordinates (k is some constant). (a) Find the
Assoli18 [71]

Answer:

Part a)

\rho = 3\epsilon_0 k r^2

Part b)

Q = 4\pi \epsilon_0kR^5

Explanation:

Part a)

As we know that electric field intensity due to some given charge distribution is given as

E = kr^3 \hat r

now electric flux through a spherical surface of radius r is given as

\phi = E. A

\phi = kr^3(4\pi r^2)

now by Guass law we know that

E.A = \frac{q}{\epsilon_0}

q = 4\pi \epsilon_0kr^5

now volume charge density is given as

\rho = \frac{q}{\frac{4}{3}\pi r^3}

\rho = 3\epsilon_0 k r^2

Part b)

Total charge inside the radius R is given as

Q = 4\pi \epsilon_0kR^5

7 0
2 years ago
You want to estimate the height of the Empire State Building. You start at its base and walk 15 m away. Then you approximate the
MatroZZZ [7]

Answer:

429 m

Explanation:

In this exercise you are suppose to simulate a right triangle, the catheti are the distance you walked and the height of the empire state building.

tan(88) = (height) /(distance you walked)

28.64 = height / 15

height = 429 m

8 0
3 years ago
Liz puts a 1 kg weight and a 10 kg on identical sleds. She then applies a 10N force to each sled. Which does not explain why the
Mariana [72]
Answer: C

Explanation:
The acceleration does not depend directly on the mass of the object.

Newton's Law is Force = Mass x Acceleration.
Therefore, Acceleration  = Force/Mass

The same force is applied in both cases.
Therefore acceleration is inversely proportional to mass.
As mass decreases, acceleration increases.

3 0
3 years ago
Read 2 more answers
Other questions:
  • How does the speed of an object influence its momentum
    12·1 answer
  • Help!! I’ll give brainliest!! Which person will hear the highest pitch?
    10·2 answers
  • Can the reaction distance be a negitive?
    8·1 answer
  • Explain why theories may be changed or replaced overnight time.
    15·1 answer
  • Which statement describes the distribution of charge in an atom? (1) A positively charged nucleus is surrounded by one or more n
    11·2 answers
  • What can be added to an atom to cause a nonvalence electron in the atom to temporarily become a valence electron
    5·2 answers
  • What activities belong at the top of the physical activity pyramid
    12·1 answer
  • What is the approximate wavelength of a light whose first-order bright band forms a diffraction angle of 45.0° when it passes
    5·1 answer
  • To calculate the gravitational potential energy of a statue on a 10-meters-tall platform, you would have to know the statue's __
    10·1 answer
  • 17. The four points built into the camera to ensure that each exposure can be oriented
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!