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3 years ago

What respiratory structure controls breathing?

Physics

2 answers:

densk [106]3 years ago

7 0

Answer:

i think the answer is :lungs

shutvik [7]3 years ago

3 0

Lungs is what helps u breath

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A hydraulic lift is designed to lift cars up to 2000 kg in mass.If the lift under the car is 1.0 m by 1.2m and the area of the i

Lerok [7]

Answer:

C) 160 N

Explanation:

$m$ = mass of the car = 2000 kg

Weight of the car is given as

$W = mg \\W = (2000) (9.8)\\W = 19600 N$

$F_{i}$ = Force exerted on the input piston

$A_{i}$ = Area of input piston = 10 cm x 10 cm = 0.1 m x 0.1 m = 0.01 m²

$A_{lift}$ = Area of lift = 1 m x 1.2 m = 1.2 m²

Using Pascal's law

$\frac{F_{i}}{A_{i}} = \frac{W}{A_{lift}}\\\frac{F_{i}}{0.01} = \frac{19600}{1.2}\\F_{i} = 160 N$

6 0

3 years ago

The eagle drops the trout a height of 6.1 m the fish travels 7.9 m horizontaly before hitting the water what is the velocity of

Semenov [28]

The velocity of the eagle is 7.0 m/s

Explanation:

The motion of the fish is a projectile motion, which consists of two independent motions:

- A uniform motion (constant velocity) along the horizontal direction, where the horizontal velocity of the fish is equal to the horizontal velocity of the eagle

- An accelerated motion with constant acceleration (acceleration of gravity) in the vertical direction

We start by analyzing the vertical motion, using the following suvat equation:

$s=ut+\frac{1}{2}at^2$

where:

s = 6.1 m is the vertical displacement of the fish

u = 0 is the initial vertical velocity of the fish

$a=g=9.8 m/s^2$ is the acceleration of gravity

t is the time

Solving for t, we find the time of flight of the fish:

$t=\sqrt{\frac{2s}{a}}=\sqrt{\frac{2(6.1)}{9.8}}=1.12 s$

Now we know that during this time, the fish travels a horizontal distance of

x = 7.9 m

Therefore, the horizontal velocity of the fish is

$v_x = \frac{x}{t}=\frac{7.9}{1.12}=7.0 m/s$

And therefore, this is the initial velocity of the eagle.

Learn more about projectile motion:

brainly.com/question/8751410

#LearnwithBrainly

6 0

3 years ago

Place a pencil or pen in front of you on the surface that you are working on. In one paragraph, using your own words, describe t

Ede4ka [16]

Answer:

READ THIS FIRST!!!

I am not going to right the parragraph (it says to use your own words, they could trace it back to me if you use my words, and you would get it trouble).

But I will tell you the forces acting on the pencil:

Gravity (pulls on the pencil)

Your hand (pushing it up canceling out gravity)

And the electromagnetic force (holding the thing together)

Hope it helped,

Have a good day

4 0

2 years ago

Seamus made an electromagnet from an iron nail, a piece of copper wire with three coils spread out across the nail, and a AAA-

never [62]

Seamus can add batteries to increase the voltage, and he can decrease the space between the wire coils to accomplish this goal.

<h3>What is Attraction?</h3>

This is defined as any type of force that causes objects to come together and is possessed by objects such as a magnet.

In order to increase the power of the magnet it is best to increase the voltage and decrease the space of the coils so as to ensure it attracts at least four paper clips which makes option C the most appropriate choice.

Read more about Magnet here brainly.com/question/14997726

7 0

2 years ago

The 3rd question i need answers

jeka94

Answer:

$\sf{B. Two \: quantities \: can \: have \: the \: same \: dimensions \: but \: different \: unit. }$

4 0

2 years ago