A man takes 16 breaths per minute at 18 degree Celsius and 760mmHg. What is the rate of breathing on a mountain top where the temperature is 5 degree Celsius and the pressure is 240

Answer:

165s

Explanation:

see attachment.

Hope this helps!

The average person needs to walk at a speed of 1.5 m/s or 5.4 km/h to go through both doors simultaneously.

To go through both doors simultaneously, the person has to be fast.

Here are the details of the calculation:

Two doors are 1 meter apart on a wall.

The mass of an average person = 84 kg

To go through both doors simultaneously, the person needs to cover the distance between two doors in the same time.

Two doors are 1 meter apart, so he needs to walk 1 meter in the same time.

Let's assume that the average person's legs cover a distance of 1.5 meters in one second.

This means that he will cover 1 meter in = 1/1.5 sec ≈ 0.67 sec.

He needs to walk 1 meter in 0.67 seconds to go through both doors simultaneously.

Therefore, the average person needs to walk at a speed of 1.5 m/s or 5.4 km/h to go through both doors simultaneously.

Learn more about fast:

brainly.com/question/111325

#SPJ11

When working with specimens on a slide that have little or no color, it is important to adjust the light intensity appropriately to enhance visibility. Generally, using a higher level of light intensity is recommended in such cases. This can help to improve contrast and make it easier to see details of the specimen.

However, it is important to be cautious when using high levels of light intensity, as this can also cause the specimen to become overexposed and washed out. It is recommended to start with a moderate level of light intensity and gradually increase it until the specimen becomes more visible, but without causing any overexposure. Overall, finding the right balance between light intensity and specimen visibility is key to obtaining accurate observations and making the most of your microscopy work.

To know more about light intensity visit :-

https://brainly.com/question/31790670

#SPJ11

Answer:

Mass is a measure of how much force it will take to change that path. ... Weight, on the other hand, is a measure of the amount of downwards force that gravity exerts on an object. This force increases with the object's mass: the more inertia it has, the harder gravity pulls.

Explanation:

The term cell is incorrect because, the average voltage of a cell is 3.40 V and as already mentioned in question, the volt of source is 18 V, so cell couldn't be the appropriate word, actually the source is battery.

Now, the source is most likely related to cell because a battery which is the source here, is made up of a "group of cell".

I'll help you with the Laplace transform calculations using the given terms: "assistance," "transform," and "Laplace." Here are the Laplace transforms of the given functions:

a) Function: 2.1u(t)
Laplace Transform: F(s) = 2.1/s

b) Function: 2u(t-1)
Laplace Transform: F(s) = 2e^(-s)/s

c) Function: 5u(t+2) - 2u(t)
Laplace Transform: F(s) = 5e^(2s)/s - 2/s

d) Function: 3u(t-b), where b>0
Laplace Transform: F(s) = 3e^(-bs)/s

These Laplace transforms were calculated with the assistance of Eq. [10], which represents the general formula for Laplace transforms: F(s) = ∫(e^(-st)f(t)dt) from 0 to ∞.

To calculate the Laplace transform of the given functions, we will use the formula:

F(s) = ∫[0, ∞) e^(-st) f(t) dt

(a) For the function 2.1u(0), we have:

F(s) = ∫[0, ∞) e^(-st) 2.1u(0) dt
    = 2.1 ∫[0, ∞) e^(-st) u(0) dt
    = 2.1 [e^(-s0)/(-s)]
    = 2.1/s

(b) For the function 2u(t - 1), we have:

F(s) = ∫[0, ∞) e^(-st) 2u(t - 1) dt
    = 2 ∫[1, ∞) e^(-st) dt
    = 2 [e^(-s)/(-s)]
    = -2/s(e^(-s) - 1)

(c) For the function 5u(t^2) - 2u(t), we have:

F(s) = ∫[0, ∞) e^(-st) (5u(t^2) - 2u(t)) dt
    = 5 ∫[0, ∞) e^(-st) u(t^2) dt - 2 ∫[0, ∞) e^(-st) u(t) dt

To solve the first integral, we will substitute t^2 = x, dt = (1/2x^(1/2))dx:

F(s) = 5 ∫[0, ∞) e^(-s(x^(1/2))) (1/2x^(1/2)) dx
    = (5/2) ∫[0, ∞) x^(-1/2) e^(-s(x^(1/2))) dx
    = (5/2) s^(-3/2) ∫[0, ∞) x^(1/2) e^(-x) dx
    = (5/2) s^(-3/2) Γ(3/2)
    = (5/4) s^(-3/2) π^(1/2)

To solve the second integral, we will use the formula u(t) = 1 - u(-t):

F(s) = 5/4 s^(-3/2) π^(1/2) - 2 ∫[-∞, 0] e^(-st) (1 - u(-t)) dt
    = 5/4 s^(-3/2) π^(1/2) + 2 ∫[0, ∞) e^(st) (1 - u(t)) dt
    = 5/4 s^(-3/2) π^(1/2) + 2 [∫[0, ∞) e^(st) dt - ∫[0, ∞) e^(st) u(t) dt]
    = 5/4 s^(-3/2) π^(1/2) + 2 [s^(-1) - F(s)]

Substituting the values of F(s) and simplifying, we get:

F(s) = (5/4) s^(-3/2) π^(1/2) + (2s - 2)/(s^2 + 1)

(d) For the function 3u(t - b), we have:

F(s) = ∫[0, ∞) e^(-st) 3u(t - b) dt
    = 3 ∫[b, ∞) e^(-st) dt
    = 3 [e^(-sb)/(-s)]
    = -3/(s e^(sb))

Therefore, the Laplace transforms of the given functions are:

(a) F(s) = 2.1/s
(b) F(s) = -2/s(e^(-s) - 1)
(c) F(s) = (5/4) s^(-3/2) π^(1/2) + (2s - 2)/(s^2 + 1)
(d) F(s) = -3/(s e^(sb))

Visit here to learn more about Laplace:

brainly.com/question/28167584

#SPJ11

Answer: Most aerobic and strength training programs cause your muscles to contract and tighten. So stretching after you exercise helps optimize the range of motion about your joints and boosts circulation.

Hope this helps!

The  intensity of the light transmitted through the second polarizer is I₀/4.

What is intensity?

A wave's intensity (I) is calculated by dividing its rate of energy transfer by the surface area over which the energy is dispersed. The rate of energy flow per unit area is, in other words, what intensity is. The quantity per unit area is measured by intensity. The size of waves per unit area is typically described by intensity. The power of a wave per unit of area over time is another way to think of a wave's strength.

What is light?

The electromagnetic radiation known as light is what enables the human eye to see and makes things visible. It can also be described as radiation that can be seen by humans. Light is made up of small energy packets called photons. Light moves in a straight line at all times.

The unpolarized light of Intensity I₀ is incident on a polarizer then a polarized light at intensity I₀/2 comes out.

Intensity of transmitted beam

It=I₀/2cos² 45 from the formula I=I₀cos²θ

It= I₀/2×1/2= I₀/4

Therefore, intensity of the light transmitted through the second polarizer is I₀/4.

Learn more about intensity from the given link.

https://brainly.com/question/16797771

#SPJ4

Answer:

D) Kira will have more endurance because she spends more time moving heavy objects.

Explanation:

Because Kira works in a warehouse, she most likely spends a significant amount of time lifting and carrying heavy items every day she works. By doing this, Kira builds up muscle endurance, which makes lifting heavy items easier over longer periods for her, versus Marta, who only does it occasionally, and may struggle lifting heavy objects over a consistent amount of time.

Kira is pretty strong. She works in a warehouse, so she moves a lot of heavy things. Her sister Marta can lift more weight than Kira can but only does it occasionally, likely to have more endurance is D. Kira will have more endurance because she spends more time moving heavy objects is correct option.

A warehouse is a large commercial building used for the storage of goods, materials, merchandise, and products. Warehouses are typically equipped with various storage systems, such as racks, shelves, and bins, to organize and store items efficiently. They serve as distribution centers for businesses, where goods are received, sorted, stored, and eventually shipped out to retailers or directly to customers. Warehouses are crucial components of supply chain management, providing a space to hold inventory and manage the flow of products throughout the distribution process.

To know more about pretty strong

https://brainly.com/question/25583626

#SPJ3

A battery-operated power tool, such as a cordless drill, converts electrical energy stored in the battery into mechanical energy through the use of a motor.

The battery, typically a lithium-ion or nickel-cadmium type, supplies the necessary voltage and current to the motor. As electricity flows through the motor's coils, it generates a magnetic field that interacts with permanent magnets, creating rotational force (torque) to turn the drill bit or drive a screw. The conversion of electrical energy to mechanical energy allows for enhanced portability and convenience, eliminating the need for a power cord and enabling users to work in a wide range of locations. Cordless drills often come with variable speed settings and torque adjustments, providing greater versatility and control for various tasks.

To know more about electrical energy  visit :-

https://brainly.com/question/16182853

#SPJ11

Two identical cylinders, A and B, contain the same type of gas at the same pressure. Cylinder A has twice as much gas as cylinder B. The statement "TA > TB" is true.

Since cylinder A has twice as much gas as cylinder B and both cylinders have the same type of gas at the same pressure, the temperature (T) of cylinder A will be greater than the temperature of cylinder B. This is due to the ideal gas law, which states that pressure (P), volume (V), and the number of moles of gas (n) are related to temperature (T).

When the number of moles (n) and pressure (P) are constant, an increase in volume (V) will result in a decrease in temperature (T), and vice versa. Since cylinder A has a greater volume than cylinder B, it means that the gas in cylinder A is spread over a larger space, resulting in a lower temperature compared to cylinder B.

Therefore, we can conclude that TA > TB, indicating that the temperature of cylinder A is greater than the temperature of cylinder B.

learn more about "pressure":- https://brainly.com/question/28012687

#SPJ11

Answer:

A dimension is a measure of a physical variable.

Unit is a way to assign a number or measurement to that dimension.

In dimensional analysis, a dimensionless quantity is a quantity to which no physical dimension is assigned, also known as a bare, pure, or scalar quantity or a quantity of dimension one, with a corresponding unit of measurement is the SI of the unit one, which is not explicity shown.

This is due to the fact that occluded fronts combine two cold air masses, which causes one of the cold air masses to go downward.

When a warm air mass is sandwiched between two cold air masses, an occluded front occurs. In an occlusion, the warm front passes over the cold front, which dives beneath it.

In a front is obscured, the warm front is fully supplanted by the cold front, in which the warm air masses have completely disappeared. Furthermore, there are frequent shifts in the various weather producing circumstances because of the cold front's relatively low temperature.

Learn more about occluded fronts, here:

https://brainly.com/question/11718564

#SPJ4

The true azimuth of the AB alignment is 91º 52' (east of north), the magnetic azimuth is 100º 22' (east of north), and the grid azimuth is 108º 52' (east of north).

To find the true azimuth, magnetic azimuth, and grid azimuth of the AB alignment, we need to consider the magnetic declination. The magnetic declination indicates the angle between true north and magnetic north at a specific location. In this case, the magnetic declination is 8º 30' E, which means that the magnetic north is 8º 30' east of the true north.

To calculate the true azimuth, we subtract the magnetic declination from the grid azimuth. The grid azimuth is given as 100º 22', so subtracting the magnetic declination of 8º 30' E gives us a true azimuth of 91º 52' (east of north).

The magnetic azimuth remains the same as the grid azimuth, which is 100º 22' (east of north).

The grid azimuth is calculated by adding the magnetic declination to the true azimuth. Since the magnetic declination is east, we add it to the true azimuth. Adding 8º 30' E to the true azimuth of 91º 52' gives us a grid azimuth of 108º 52' (east of north).

Learn more about magnetic declination here:

https://brainly.com/question/18597422

#SPJ11

Answer: Volume and mass

Explanation: I took the quiz lol

Answer:

To find the work done in moving the particle from the origin to x = 2, we need to integrate the force over the given interval.

The work done (W) is calculated by integrating the force function with respect to displacement (dx) from the initial position (0) to the final position (2):

W = ∫(0 to 2) (10x³ - 5) dx

Integrating the force function, we get:

W = ∫(0 to 2) (10x³ - 5) dx = [2.5x⁴ - 5x] evaluated from 0 to 2

Now, substituting the upper limit (2) and lower limit (0) into the equation:

W = [2.5(2)⁴ - 5(2)] - [2.5(0)⁴ - 5(0)]

 = [2.5(16) - 10] - [0 - 0]

 = 40 - 10

 = 30

Therefore, the work done in moving the particle from the origin to x = 2 is 30 units of work.

Explanation:

Một đại lượng vectơ là một lực. Đại lượng vectơ là đại lượng có cả độ lớn và hướng, như chúng ta đã dạy trong phần trước. Bạn phải xác định cả độ lớn (kích thước hoặc số) và hướng của lực tác dụng lên một vật thể để mô tả hoàn toàn nó.

Answer:

Option (3)

Explanation:

From the graph attached,

Zeros of the function are, x = -3,

Graph of the polynomial touches x axis at x = -3, 1 and 3

Therefore, equation of the given function will be in the form of,

P(x) = \(k(x+3)^a(x-1)^b(x-3)^c\)

Since, graph of the function just touches the x-axis, multiplicity of zero at x = -3 will be even and crosses x-axis so the multiplicity at x = 1 and 3 will be odd.

Therefore, possible function will be,

P(x) = \(k(x+3)^2(x-1)(x-3)\)

Since, y-intercept of the function is at (0, -3),

P(0) = k(0 + 3)²(0 - 1)(0 - 3)

-3 = 27k

k = \(-\frac{3}{27}=-\frac{1}{9}\)

Therefore, given polynomial function is,

P(x) = \(-\frac{1}{9}(x+3)^{2}(x-1)(x-3)\)

Option (3) will be the correct option.

Answer:

Explanation:

The autonomic nervous system has two components, the sympathetic nervous system and the parasympathetic nervous system. The sympathetic nervous system functions like a gas pedal in a car. It triggers the fight-or-flight response, providing the body with a burst of energy so that it can respond to perceived dangers.

(a) The equation for the change in electric potential energy, ΔU, of the electron is ΔU = q(V₂ - V₁).

(b) The numerical value of the change in electric potential energy is ΔU = 137 electron volts (eV).

(c) The speed of the electron at point 2, v₂, can be expressed as v₂ = √(2ΔU / mₑ).

(d) The numerical value of v₂ is approximately v₂ ≈ 5.75 meters per second (m/s).

(a) The change in electric potential energy, ΔU, of the electron can be calculated using the equation:

ΔU = q(V₂ - V₁)

where q is the charge of the electron and V₂ and V₁ are the potentials at points 2 and 1, respectively.

(b) To find the numerical value of the change in electric potential energy in electron volts (eV), we need to convert the value of ΔU from joules to electron volts. Since 1 electron volt is equal to 1.6 x 10⁻¹⁹ joules, we can calculate:

ΔU (in eV) = ΔU (in joules) / (1.6 x 10⁻¹⁹ J/eV)

Substituting the known values, we have:

ΔU (in eV) = (q(V₂ - V₁)) / (1.6 x 10⁻¹⁹)

To find the numerical answer in part (b), we need to substitute the charge of the electron (q) and the potential difference (V₂ - V₁) into the equation and perform the calculation.

q = 1.6 x 10⁻¹⁹ C (charge of the electron)

V₂ = 159 V (potential at point 2)

V₁ = 22 V (potential at point 1)

ΔU (in eV) = (q(V₂ - V₁)) / (1.6 x 10⁻¹⁹)

= (1.6 x 10^(-19) C)((159 V - 22 V) / (1.6 x 10⁻¹⁹))

= (1.6 x 10^(-19) C)(137 V / (1.6 x 10⁻¹⁹))

= 137 eV

(c) The speed of the electron at point 2, v₂, can be expressed in terms of ΔU and the mass of the electron, mₑ, using the equation:

ΔU = (1/2)mₑv₂²

Solving for v₂, we get:

v₂ = √(2ΔU / mₑ)

(d) To find the numerical value of v₂ in m/s, we substitute the calculated value of ΔU from part (b) and the mass of the electron, which is approximately 9.11 x 10⁻³¹ kg, into the equation and evaluate it.

To find the numerical answer in part (d), we need to substitute the value of ΔU and the mass of the electron (mₑ) into the equation and perform the calculation.

ΔU = 137 eV

mₑ = 9.11 x 10⁻³¹ kg

v₂ = √(2ΔU / mₑ)

= √((2)(137 eV) / (9.11 x 10⁻³¹ kg))

≈ √(3.007 x 10^(-29) m²/s² / (9.11 x 10⁻³¹ kg))

≈ √(3.301 x 10¹ m²/s²)

≈ √(33.01) m/s

≈ 5.75 m/s (rounded to two significant figures)

Learn more about potential energy:

https://brainly.com/question/21175118

#SPJ11

Answer: The graph will look like a simple linear equation. It is diagonal and trends upward

Explanation:

The Lorentz transformation is: x'² + y² + z'2 = c² t'²

The Lorentz transformation can be derived from spherical wavefronts given in Equations (2.9). To do so, we can use the following steps:

1. Start with the equation x²+ y² + z²= c²t²
2. Make the change x -> x' - vt/√(1-β²) and y -> y'
3. Inserting these values into the original equation gives us x'² + y'² + z² = c² t²
4. Next, make the change z -> z' and t -> t' - (vx/c²)/√(1-β²)
5. Inserting these values into the equation from Step 3 yields the Lorentz transformation: x'² + y'² + z'² = c² t²

This completes the derivation of the Lorentz transformation given in Equations (2.17) from spherical wavefronts given in Equations (2.9).

Learn more about Lorentz transformation

https://brainly.com/question/27832649

#SPJ11

The photon's frequency is approximately 6.41 × \(10^{20\) Hz. The photon's wavelength is approximately 4.68 × \(10^{-13\) meters. Comparing the wavelength found in part (b) with a typical nuclear diameter of 1.00 × \(10^{-14\) meters,

(a) To find the photon's frequency (f), we can use the equation:

E = hf,

Converting the energy from MeV to joules:

2.65 MeV = 2.65 × \(10^6\) electron volts (eV) = 2.65 × \(10^6\) × 1.60 × \(10^{-19\) joules ≈ 4.24 × \(10^{-13\) joules.

Now, we can rearrange the equation to solve for the frequency:

f = E / h = (4.24 × \(10^{-13\)joules) / (6.63 × \(10^{-34\) joule-seconds) ≈ 6.41 × \(10^{20\)Hz.

(b) To find the photon's wavelength (λ), we can use the equation:

c = fλ,

where c is the speed of light.

Rearranging the equation to solve for the wavelength:

λ = c / f = (3.00 × \(10^8\) m/s) / (6.41 × \(10^{20\) Hz) ≈ 4.68 × \(10^{-13\) meters.

Wavelength is a fundamental concept in physics that refers to the distance between two consecutive points in a wave that are in phase, or in other words, the distance over which the wave repeats itself. It is denoted by the symbol λ (lambda) and is usually measured in meters or other units of length.

Wavelength is an important characteristic of all types of waves, including electromagnetic waves such as light and radio waves, as well as mechanical waves like sound waves. In the case of electromagnetic waves, wavelength determines the color of light or the frequency of the radio signal. Shorter wavelengths are associated with higher frequencies and higher energy, while longer wavelengths correspond to lower frequencies and lower energy.

To know more about Wavelength refer to-

brainly.com/question/7143261

#SPJ4

Answer:

Thermal energy, or heat, is the energy that comes from the movement of atoms and molecules in a substance. Heat increases when these particles move faster. Geothermal energy is the thermal energy in the earth. Motion energy is energy stored in the movement of objects. so the answer is thermal energy

A force of 680 N is required to get the clock moving, so the maximum static friction is also f ˢ = 680 N. The clock is at rest, so the net vertical force acting on it is 0, and by Newton's second law,

n - mg = 0

where

n = magnitude of the normal force

m = 85 kg = mass of the clock

g = 9.8 m/s² = magnitude of the acceleration due to gravity

So we have

n = mg = (85 kg) (9.8 m/s²) = 833 N

which means the static friction f ˢ is such that

f ˢ = µ ˢ n

Solving for the coefficient of static friction gives

µ ˢ = (680 N) / (833 N) ≈ 0.82

After it starts moving, a force of 540 N is required to keep the clock going at a constant speed, so the kinetic friction is also f ᵏ = 540 N. Then

f ᵏ = µ ᵏ n

and solving for the coefficient of kinetic friction yields

µ ᵏ = (540 N) / (833 N) ≈ 0.65

Answer:

the third one is incorrect

Explanation:

10 x 10³= 10^1 x 10^3 = 10^4

Answer:

It is a physical change of state

Explanation:

pls crown

The answer on edgenuity2020 is physical

The theory of the Moon's origin that best fits with the current scientific understanding is c. a large object hit the Earth and the collision produced a filament of material that condensed to make the Moon. This theory is known as the Giant Impact Hypothesis and is currently the most widely accepted explanation for the formation of the Moon.

It proposes that a Mars-sized body collided with the Earth about 4.5 billion years ago, creating a massive impact that ejected a large amount of material into space. This material then formed a ring around the Earth, which eventually condensed to form the Moon.

This theory is supported by several lines of evidence, including the similar isotopic composition of the Earth and Moon, the Moon's low iron content, and the presence of water on the Moon that is thought to have originated from the Earth's mantle.

To know more about the Moon's origin refer here :

https://brainly.com/question/13047403#

#SPJ11

Answer:

Force is useful to us because it changes or tries to change the positionof a body, it helps to change the direction of a moving object , it helps to change the speedof a moving body etc.

I hope this will help you