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grin007 [14]
3 years ago
5

How do you sound waves reach our ears?

Physics
1 answer:
iren2701 [21]3 years ago
5 0

Answer:

Sound waves enter the outer ear and travel through a narrow passageway called the ear canal, which leads to the eardrum. The eardrum vibrates from the incoming sound waves and sends these vibrations to three tiny bones in the middle ear. These bones are called the malleus, incus, and stapes.

Explanation:

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What occurs as a ray of light passes from<br> al inilo water?
iVinArrow [24]

Answer:

this may be wrong but I am not sure

3 0
3 years ago
A stunt man jumps from the top of a building and lands 10 meters below his initial height. In case A, the stunt man lands on a s
krek1111 [17]

Answer:

Explanation:

The stunt will likely sustain serious injury in case of concrete blocks because the average force acting on the person will be more because concrete blocks do not squeeze to provide more time for the force to act on the body instead it acts for a small amount of interval.

Impulse=F_{avg}\times \Delta T

As impulse is constant so time requires to act force on the body is more as compared to concrete block and thus average force in mattress case is less.  

8 0
3 years ago
What is the mass of a car that weighs 12kN?<br> Will give brainliest!!!!
masha68 [24]

Answer:

The answer is 1200 Kg

Explanation:

<h3><u>Given</u>;</h3>
  • Weight of car 12000 N
<h3><u>To </u><u>Find</u>;</h3>
  • Mass of car = ?
<h3><u>Formula</u>;</h3>
  • W = m × g
  • where, W = weight
  • m = mass,
  • g = Acceleration due to gravity = 10 m/s²

Now,

W = mg

12000 = m ÷ 10

m = 12000 ÷ 10

m = 1200 kg

Thus, The mass of car is 1200 kg or 1.2k Kg.

 

<u>-TheUnknownScientist 72</u>

7 0
2 years ago
Need answers fast plz
Len [333]

Answer:

<h2>S.A. = 402.62 m²</h2>

Step-by-step explanation:

We have:

two right triangles with legs 4m and 6m

The area:

A_1=\dfrac{1}{2}(4)(6)=12\ m^2

three rectangles

22m × 6m

The area:

A_2=22\cdot6=132\ m^2

22m × 7.21m

The area:

A_3=22\cdot7.21=158.62\ m^2

22m × 4m

The area:

A_4=22\cdot4=88\ m^2

The Surface Area:

S.A.=2A_1+A_2+A_3+A_4

Substitute:

S.A.=2(12)+132+158.62+88=402.62\ m^2

5 0
4 years ago
The base for hair follicles is in the _____.<br><br> epidermis<br> fatty layer<br> dermis<br> dentin
Elis [28]

Answer:

dermis

Explanation:

epidermis

dermis

hypodermis

8 0
3 years ago
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