important parts of the respiratory system

Answer:Because, first, the atmosphere is moving with the Earth’s Surface. Secondly, although you might aim straight up, you, the stone and the Earth’s surface are moving at up to about 1000mph depending on how close to the equator you are. So you throw the stone upwards at a few metres per second, but it also has the same horizontal momentum as you and the Earth’s surface, up to 400m/sec. So if you threw it up exactly vertical, it will come down nearly on top of you, unless there is a local wind blowing, in which case it might miss by a few feet.

Try throwing a stone sideways from a moving car. Aim at a tree you are passing. The stone will land a long way from the tree somewhere near 90° from your car. Because you have imparted two vectors of motion to it. One sideways from your throw, and one forwards equal to the speed of the car.

Answer:

110 mL

Explanation:

Ideal gas law:

PV = nRT

Assuming the container isn't rigid, and the pressure is constant, then:

V/T = V/T

Plug in values (remember to use absolute temperature).

V / 293 K = 150 mL / 393 K

V = 110 mL

Answer:

Explanation:

Given the following :

Speed (V) = speed of 2.30×10^7 m/s

Acceleration (a) = 1.70×10^13 m/s^2

Using the right hand rule provided by  Lorentz law:

B = F / qvSinΘ

Where B = magnitude of the magnetic field

v = speed of the particle

Θ = 90° (perpendicular to the field)

q = charge of the particle

SinΘ = sin90°  = 1

Note F = ma

Therefore,

B = ma / qvSinΘ

Mass of proton = 1.67 × 10^-27

Charge = 1.6 × 10^-19 C

B = [(1.67 × 10^-27) × (1.70 × 10^13)] / (1.6 × 10^-19) × (2.30 × 10^7) × 1

B = 2.839 × 10^-14 / 3.68 × 10^-12

B = 0.7715 × 10^-2

B = 7.72 × 10^-3 T

2) Magnetic field will be in the negative y direction according to the right hand thumb rule.

Since Velocity is in the positive z- direction, acceleration in the positive x - direction, then magnetic field must be in the negative y-direction.

Answer: Comparing infrared and ultraviolet, ''we can say that infrared has longer wavelength and lower photon energy''

At the time when infrared and ultraviolet is compared so it has longer wavelength and lower photon energy.

It should be lie between the visible and microwave portions of the electromagnetic spectrum. Infrared waves contain wavelengths more than than ultraviolet radiation. And the frequency of Infrared radiation should be lower as compared to the ultraviolet radiation. Also, the photon energy of the light should be proportional to the wave frequency.

learn more about wavelength here: https://brainly.com/question/19587294

Answer:

Force is defined as the push or pull on a body which changes or tends to change the state of rest or uniform motion in a straight line.

The SI unit of force is Newton (N)

Simply, pull or push is called force. A book lying on the table continues to lie on the table unless and external force is applied in it. So, Generally force is an external agency which changes or tends to change the state of rest to motion or vice versa. The SI unit of force is Newton. In CGS system, the unit of force is dyne.

1 Newton:[tex] {10}^{5} dyne[/tex]

Hope this helps...

Good luck on your assignment...

Complete Question

A frog jumps to the left with an average speed of 1.8m/s for 0.55s What was the frog's displacement in meters.

Answer:

The  displacement is  [tex]d = -0.99 \ m[/tex]

Explanation:

From the question we are told that  

   The average speed is  [tex]v = -1.8 \ m/s[/tex]

The  negative sign indicates that the frog jumped to the left (negative x-axis )

   The time taken is  [tex]t = 0.55 \ s[/tex]

Generally displacement is mathematically represented as

        [tex]d = v * t[/tex]

      [tex]d = -1.8 * 0.55[/tex]

      [tex]d = -0.99 \ m[/tex]

Answer:

4 km/hr

Explanation:

The computation of the actual velocity is shown below:

Because the path of its paddles is opposed to the current direction, the real velocity can be determined by deducting the current velocity to its velocity while paddling

So, the actual velocity is

= Upstream - downstream

= 19 km/hr - 15 km/hr

= 4 km/hr

As we can see it is in positive, so it is an upstream direction  

Answer:

since the direction of his paddles is opposite of the the direction of the current, so the actual velocity can be calculated by subtracting the velocity of current to to his velocity when paddling

v = 19 - 15

v = 4 since the answer is positive, then the direction is upstream

Explanation:

Answer:

Distance travel (s) = 67 m (Approx)

Explanation:

Given:

Initial speed (u) = 20 m/s

Final speed (v) = 0 m/s

Acceleration (a) = (-3 m/s²)

Find:

Distance travel (s)

Computation:

v² = u² + 2(a)(s)

0² = 20² + 2(-3)(s)

0 = 400 - 6 s

6 s = 400

S = 66.6667 meter

Distance travel (s) = 67 m (Approx)

Answer:

h ’= 12,768 cm

Explanation:

For this exercise let's use the constructor equation

         1 / f = 1 / p + 1 / q

where f is the focal length, p the distance to the object and q the distance to the image

the magnification equation is

          m = h '/ h = -q / p

let's find the distance to the object

         1 / p = 1 / f- 1 / q

         1 / p = 1/20 - 1 / (- 37.5)

         1 / p = 0.076666

          p = 13.04 cm

now let's use the magnification equation

         h ’= - q / p h

let's calculate

         h ’= - (-37.5) / 13.04 4.44

         h ’= 12,768 cm

Answer:

12.8

Explanation:

got the answer from chegg. Correct for acellus.

Answer:

B. X is the answer, hope it helps

Explanation:

X vector best represents the net force acting on the +4C charge in the diagram. Therefore, the correct option is option B.

A force in physics is an effect that changes the velocity, or acceleration, of a mass-moving object. It is a vector quantity since it can be a pushing or a pull and always has magnitude and direction. It is denoted by the letter F and is measured in newtons (N), the SI unit of force.

The net force acting on an object being equal to the rate where its momentum varies over time, according to Newton's second law in its original formulation. This law suggests that now the acceleration that an object experiences being directly correlated with the total force exerted on the object. X vector best represents the net force acting on the +4C charge in the diagram.

Therefore, the correct option is option B.

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Answer:

20

Explanation:

from V= IR

I = 0.5A

R= 20ohm

so... Potential difference V= 0.5×20 = 10

Time = (distance) / (speed)

Time = (4.12x10^16 m) / (3 x10^8 m/s)

Time = 1.37 x 10^8 seconds

Divide the seconds by 86,400 to get days. Then divide the days by 365 to get years.

Time = about 4.35 years

If caught outside in a thunderstorm, find a low spot away from trees, fences, and poles. If your skin tingles and hair stands on end, lightning is about to strike. Crouch down immediately, balancing on the balls of your feet, placing hands on knees with head between them.

I tryed

Answer: take shelter

Explanation: Because u don’t want to die

Answer:

1. B

2. D

Explanation:

1. The distance–time graph most closely represents an object moving with uniform motion is B.

2. The speed–time graph most closely represents an object travelling with uniform motion is D.

The motion of the object when it is moving with constant velocity or velocity is not changing with time, is called the uniform motion.

1. For uniform motion, equal distance is moved in equal interval of time. So, the best fit graph for uniform motion is B having linear relationship.

Thus, the correct option is B.

2. . For uniform motion, velocity is same at all times. So, the best fit graph for uniform motion is D having straight line parallel to x axis representing time.

Thus, the correct option is D.

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Answer:

Plasma is by far the most common form of matter. Plasma in the stars and in the tenuous space between them makes up over 99% of the visible universe and perhaps most of that which is not visible. On earth we live upon an island of "ordinary" matter.

Answer:

dC = 72m < dA = 80m < dB = 90m

Explanation:

In order to calculate the distance traveled by each mobile, you use the following formula:

[tex]d=vt[/tex]          (1)

d: distance traveled

v: speed of the car

t: time of the motion

You replace the values of v and t for each mobile:

mobile A:

[tex]d_A=v_At_A=(16m/s)(5s)=80m[/tex]

mobile B:

[tex]d_B=v_Bt_B=(15m/s)(6s)=90m[/tex]

mobile C:

[tex]d_C=v_Ct_C=(24m/s)(3s)=72m[/tex]

Then, you obtain that he distances traveled by the mobiles show:

dC = 72m < dA = 80m < dB = 90m

Answer:1.81

(a) Explanation:the turn ratio= input voltage÷output voltage.

400÷220=1.81.

Don't know how to solve b part...

Answer:

The correct answer is option D.

Explanation:

With an increase in temperature, the particles increase kinetic energy and move quicker. The normal speed of the particles relies upon their mass just as the temperature – heavier particles move more gradually than lighter ones at a similar temperature.

The temperature increase in this system since the average kinetic energy of the particles increases and particles move quickly. And after some time the temperature of the system is lower now than it was initially.

Thus, the correct answer is option D.

The impact of the change in motion should be option D.

In the case when there is an increase in temperature, the particles should increase kinetic energy and move faster. The normal speed of the particles believes their mass is like the temperature. The temperature rises in this system because the average kinetic energy of the particles should rised and particles move faster.

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Answer: a. How the mass of an extended object is distributed about a rotation axis

Explanation: Moment of inertia is defined as the measure of the rotational inertia of a solid object, it is a quantity that defines the torque needed to reach a desired angular acceleration around a given rotation axis, and it depends mainly on the mass distribution of the object, so the correct answer is: "how the mass of an extended object is distributed about a rotation axis"

Answer:

ooof mood

Explanation:

Answer:

i kinda like physics.

Explanation:

Explanation:

The gravitational potential energy is given by :

E = mgh

Here, mg is force acting on the car

h is height at which it is placed

It is directly proportional to the height or the position of the car. It means if the height is less then it will have minimum potential energy while if the height is more then it will have maximum potential energy.

Answer: El momento final es 12 veces el momento inicial.

Explanation:

El momento es definido como la cantidad de movimiento, y la ecuación es:

P1 = m*V

donde m es masa y V es velocidad

Si este es el momento inicial de nuestro objeto, y ahora la masa se triplica y la velocidad se cuadriplica (en modulo) el nuevo momento es:

P2 = (3*m)*(4*V) = 3*4*m*V = 12*m*V

Entonces la razón entre los momentos es:

P2/P1 = 12m*V/(m*V) = 12

Answer:

Flemmings' left hand rule  and Downward direction

Explanation:

The person could able to determine the path of force by applying the left-hand rule of Fleming.

Via holding the thumb the forefinger and second finger at right angles for one other

The left-hand rule is applied in the electric motors

On the other hand, the right-hand rule is applied for electric generators.

So different hands are used for the different thing as there is a difference between the cause and effect

Therefore in this case there is a left hand rule used and the direction is downward

Answer:

The car stops in 7.78s and does not spare the child.

Explanation:

In order to know if the car stops before the distance to the child, you take into account the following equation:

[tex]x=x_o+v_ot-\frac{1}{2}at^2[/tex]        (1)

vo: initial speed of the car = 45km/h

a: deceleration of the car = 2 m/s^2

t: time

xo: initial distance to the child = 25m

x: final distance to the child = 0m

It is necessary that the solution of the equation (1) for time t are real.

You first convert the initial speed to m/s, then replace the values of the parameters and solve the quadratic polynomial for t:

[tex]45\frac{km}{h}*\frac{1h}{3600s}*\frac{1000m}{1km}=12.5\frac{m}{s}[/tex]

[tex]0=25+12.5t-2t^2\\\\2t^2-12.5t-25=0\\\\t_{1,2}=\frac{-(-12.5)\pm \sqrt{(-12.5)^2-4(2)(-25)}}{2(2)}\\\\t_{1,2}=\frac{12.25\pm 18.87}{4}\\\\t_1=7.78s\\\\t_2=-1.65s[/tex]

You take the first value t1 because it has physical meaning.

The solution for t is real, then, the car stops in 7.78s and does not spare the child.

Explanation:

According to newtons first law of motion " A body is at a state of rest or uniform motion unless acted upon by a force (external)" which will either

1. change the direction

2. change the acceleration

3. change the velocity(moves or stop the body from moving)

4. change the shape or size

Answer:

C

Explanation:

I would have said B but air pressure acts at ALL angles(directions). C makes sense because the increase in the temperature would cause the molecules to bounce off the walls of the balloon and each other which exerts pressure.

Answer:

C c hagwguawnjaahwbhanwbhsqn2nusbwvwf

Answer:

True

Explanation:

The bodies internal organs move around, even after a collision that may impact your skeletal system.

When a collision occurs and the body comes to a sudden stop, the internal organs can continue to move due to their inertia. Yes, that statement is generally true.

Inertia is the property of an object that resists changes in its state of motion. The internal organs of the body, such as the heart, lungs, liver, and others, are not directly attached to the skeletal structure and are instead supported by connective tissues and surrounded by fluids.

During a collision, the body experiences a rapid deceleration or change in velocity. While the external motion of the body may come to a stop, the internal organs, due to their inertia, continue to move forward momentarily until they are acted upon by internal forces. This phenomenon is known as "organ motion" or "organ inertia."

In situations where high-impact collisions occur, such as in car accidents or contact sports, the continued motion of internal organs can result in serious injuries, even when external signs of trauma may be minimal.

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Answer:

it's true I'm pretty sure

Answer:

the answer is true.I'm sure

Answer:

hope this helps you