Assume that a person skiing high in the mountains at an altitude of h = 14200 ft takes in the same volume of air with each breath as she does while walking at sea level.
Required:
Determine the ratio of the mass of oxygen inhaled for each breath at this high altitude compared to that at sea level. Assume that the air composition (i.e. % of air that is oxygen) is the same at sea level as it is at 14200 ft.
Answers
Answer:
The ratio of the mass of oxygen inhaled for each breath at this high altitude compared to that at sea level is 64.7 %
Explanation:
Mass of air at sea level is given by;
\(m_o = \rho_o V_o\)
Mass of air at 14,200 ft altitude is given by;
\(m_{14.2} = \rho _{14.2} V_{14.2}\)
The ratio of the mass of oxygen at high altitude to that at sea level is given by;
\(\frac{m_{14.2}}{m_o} = \frac{\rho _{14.2} V_{14.2}}{\rho _oV_{o}}\\\\ Assume \ that \ the \ air \ composition \ (V_{14.2} = V_o)\\\\\frac{m_{14.2}}{m_o} = \frac{\rho _{14.2} }{\rho _o}\\\\\)
density of air at sea level, \(\rho _o = 0.002378 \ slug/ft^3\)
density of air at 10,000 ft = 0.001756 slug/ft³
density of air at 14,200 ft = x
density of air at 15,000 ft, = 0.001496 slug/ft³
Interpolate between 10,000 ft and 15,000 ft
\(\frac{14,200 - 10,000}{15,000-10,000} = \frac{X - 0.001756}{0.001496 -0.001756}\\\\ 0.84(-0.00026) = X - 0.001756\\\\-0.0002184 = X - 0.001756\\\\X = 0.001756 - 0.0002184\\\\ X = 0.001538 \ slug/ft^3\)
The ratio of the mass of oxygen at 14,200 ft to that at sea level is given by;
\(\frac{m_{14.2}}{m_o} = \frac{\rho _{14.2}}{\rho_o} \\\\\frac{m_{14.2}}{m_o} =\frac{0.001538}{0.002378} = 0.647 = 64.7 \%\)
Therefore, the ratio of the mass of oxygen inhaled for each breath at this high altitude compared to that at sea level is 64.7 %
Related Questions
two importance of
headlight alignment
Answers
Answer:
Proper horizontal and vertical adjustments.
Explanation:
Proper horizontal and vertical adjustments will ensure that you can see far enough down the road to react to obstacles or avoid animals.
Impulse and momentum experiment when you used different elastic materials, what changes occurred in the shapes of the graph? is there a correlation between material and shape?
Answers
The change in momentum of the object is equal to the impulse it experiences. F • t = m • v is an equation. When two objects collide, they both experience an impulse, which both causes and is equal to the change in momentum.
How does impulse cause a change in an object's momentum?The impulse-momentum theorem predicts that an object's applied impulse will be equal to its changed momentum. As of late, we can clearly discern the impulse-momentum theorem.
What can we infer about collisions and explosions from the impulse-momentum change theorem?In a collision, an object is subjected to a force for a predetermined period of time, changing the velocity of its mass. The impulse-momentum change theorem is what is used to prove this.
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Refer to the graphic. What type of cabling is shown? a. STP b. UTP c. Coax d. Fiber
Answers
STP cable employs four of wires, each of which is shielded with foil and then covered with a metal braid or foil overall.
What kind of cable is UTP?Unshielded twisted-pair cable is known as UTP. A 100 ohm cable called a UTP cable has 2 to 1800 coaxial cables pairs that are encased in an outer jacket. They don't have a metal shield. As a result, the wire has a small diameter yet is not shielded from electrical interference.
UTP or FTP, which is preferable?For instance, Unshielded twisted - pair (unshielded twisted pair cables can be a good choice if you intend to install Network cable in your home. But if you wish to use other Gigabit Ethernet and PoE (Power through Ethernet) applications.
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Plumbing
The should indicate the materials, fixtures, and faucets to be
used.
A. specifications
B. plumbing code
C. mechanical code
D. plumbing instructor
Answers
Answer:
B....................
It is ________ to pass on winding and curving roads.
Answers
It is challenging(difficult) to pass on winding and curving roads.
What is windingWinding and curving roads often obstruct the driver's view of what lies ahead. This reduced visibility can make it difficult to anticipate oncoming traffic, pedestrians, or obstacles, increasing the risk of accidents if attempting to pass.
In terms of Uncertain Road Conditions, the nature of winding and curving roads can lead to varying road conditions. These conditions might include sharp turns, uneven surfaces, narrow lanes, and potential hazards around corners. Passing in such conditions can lead to loss of control or collisions.
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The oxygen consumption of an activated sludge plant is 60 g O2/L.d for the degradation of
carbon compounds. In addition, 50 % of this quantity is required for the nitrification. How many
percent of the nitrogen inflow load of 10 g N/L.d are oxidized with a specific oxygen
consumption of 4.6 g O2/g N?
Answers
Answer:
sorry di ko alam
Explanation:
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_______________ is an effective way to manage waste in a shop.
Answers
Answer:
To reduce waste.
Explanation:
technician a says that the p in a p-metric radial size means performance. technician b says that european tires do not display a p at the front of their tire rating. who is correct?
Answers
Technician A is correct. The "P" in a P-metric radial size indicates the tire's performance rating. European tires do not display a "P" at the front of their tire rating.
Technician A is correct. The "P" in a P-metric radial size indicates the tire's performance rating. This rating is based on the tire's load index and speed rating. The "P" stands for the tire's performance class, and is used to indicate the tire's ability to handle a certain amount of load at the speed for which it was designed. European tires do not display a "P" at the front of their tire rating, as they use a different rating system. The European Tire and Rim Technical Organization (ETRTO) uses a different rating system which is based on the width, aspect ratio, and construction of the tire, as well as the rim size and width. This rating system does not use the "P" designation to indicate performance.
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What is the maximum number of points a player can score during a frame of snooker while curving around at a 45 degree angle going at a speed of 2 miles per hour with the wind speed of 2 mph on a rug coated snooker table?
Answers
In snooker, the maximum number of points that can be scored during a single frame is 147. This is achieved by potting all 15 red balls, each worth 1 point, and subsequently potting the colored balls in sequence: yellow (2 points), green (3 points), brown (4 points), blue (5 points), pink (6 points), and black (7 points). Each color is then returned to its original position and can be potted again for additional points.
The angle and wind speed mentioned in your question are not relevant to determining the maximum number of points in a snooker frame. The speed and direction of the balls are controlled by the player's shots, and the rug coating on the table doesn't affect the scoring.
So, regardless of the angle, wind speed, or table surface, the maximum number of points that can be scored in a frame of snooker is 147.
What might the effect of using salt on snowy and icy roads be on Montgomery County's Water Supply?" What might the effect of using salt on snowy and icy roads be on Montgomery County's Water Supply?"
Answers
The use of salt on snowy and icy roads could have a negative effect on Montgomery County's Water Supply. The salt used on the roads for melting ice can cause a number of issues for water supplies and ecosystems, and Montgomery County is no exception.
When salt is used to melt snow and ice on the road, it can dissolve into the water and run off into streams, rivers, and lakes. The salt lowers the freezing point of water and melts ice, but it also alters the chemical makeup of the water, making it more saline. It can also damage aquatic plants, animals, and fish that rely on freshwater systems.
Therefore, it is important to take steps to minimize the use of salt or to use alternatives, such as sand or beet juice, which are less harmful to the environment and water supplies.
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Given the below input signal, V????????(t), and the phasors of the transfer function at various frequencies, calculate the expression for the output signal, VO????T(t) in the form VO????T(t)=Acos(200πt+θ1)+Bcos(400πt+θ2). What is the value of A? V????????(t)=10cos(200πt+30∘)+20cos(400πt+45∘)
Answers
The question is incomplete! Complete question along with answer and step by step explanation is provided below.
Question:
1. Given the below input signal, VIN(t), and the phasors of the transfer function at various frequencies, calculate the expression for the output signal, VOUT(t) in the form VOUT(t)=Acos(200πt+θ1)+Bcos(400πt+θ2).
What is the value of A?
VIN(t)=10cos(200πt+30)+20cos(400πt+45)
H(f)=0.1∠10 f=100Hz
H(f)=1∠−20 f=200Hz
H(f)=2∠30 f=300Hz
H(f)=3∠−40 f=400Hz
H(f)=4∠50 f=500Hz
2. In the same question, what is the value of θ1 in degrees? Enter the value in the box below without the units.
3. In the same question, what is the value of B? Enter the value in the box below without the units.
4. In the same question, what is the value of θ2 in degrees? Enter the value in the box below without the units.
Answer:
Vout(t) = 10cos(200πt + 10°) + 60cos(400πt + 5°)
1. What is the value of A?
A = 10
2. In the same question, what is the value of θ1 in degrees?
θ₁ = 10°
3. In the same question, what is the value of B?
B = 60
4. In the same question, what is the value of θ2 in degrees?
θ₂ = 5°
Explanation:
The output signal Vout(t) is in the form
Vout(t)=Acos(200πt + θ₁) + Bcos(400πt + θ₂)
The input signal Vin(t) is given as
Vin(t) = 10cos(200πt + 30°) + 20cos(400πt + 45°)
The output signal Vout(t) is found by
Vout(t) = H(f) × Vin(t)
Where H(f) is the transfer function at various frequencies and Vin(t) is the input signal.
H(200) = 1 ∠−20°
H(400) = 3 ∠−40°
converting the input signal into phasors
10cos(200πt + 30°) = 10 < 30°
20cos(400πt + 45°) = 20 < 45°
Vout(t) = H(200)×10cos(200πt + 30°) + H(400)×20cos(400πt + 45°)
Vout(t) = (1 ∠−20°)×10cos(200πt + 30°) + (3 ∠−40°)×20cos(400πt + 45°)
Vout(t) = (1 ∠−20°)×(10 < 30°) + (3 ∠−40°)×(20 < 45°)
Multipy the magnitude and add phase angles together
Vout(t) = (1×10 ∠−20° + 30°) + (3×20 ∠−40° + 45°)
Vout(t) = 10 ∠ 10° + 60 ∠5°
Vout(t) = 10cos(200πt + 10°) + 60cos(400πt + 5°)
Comparing it with the general form
Vout(t)=Acos(200πt + θ₁) + Bcos(400πt + θ₂)
1. What is the value of A?
A = 10
2. In the same question, what is the value of θ1 in degrees?
θ₁ = 10°
3. In the same question, what is the value of B?
B = 60
4. In the same question, what is the value of θ2 in degrees?
θ₂ = 5°
the most likely creep mechanism at high temperatures and low applied stresses is: the most likely creep mechanism at high temperatures and low applied stresses is:crack propagationgrain boundary diffusiondislocation glide.dislocation motion (climb)bulk diffusion
Answers
The most likely creep mechanism at high temperatures and low applied stresses is "dislocation motion (climb)". Option e is answer.
This mechanism involves the movement of dislocations through the lattice structure of a material, which leads to deformation or strain. When high temperatures and low applied stresses are present, the movement of dislocations through the lattice structure becomes the dominant mechanism for creep.
Other creep mechanisms such as crack propagation, grain boundary diffusion, and bulk diffusion are more likely to occur under different conditions such as low temperatures, high applied stresses, or in materials with specific microstructures. Understanding the dominant creep mechanism is important in designing and selecting materials for high-temperature applications where creep resistance is critical.
Option e is answer.
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Once the external shape and internal features of a part are represented by a combination of lines, further information is provided by ____.
Answers
Once the external shape and internal features of a part are represented by a combination of lines, further information is provided by Dimension.
What is Shape Dimension?In regards to geometry, the three-dimensional shape is known to be one that can be said to be a form of solid figure or an object/shape that is of known to be made up of three dimensions which are length, width, and height.
Note that the three-dimensional shapes have height as well as thickness or depth.
Therefore, Once the external shape and internal features of a part are represented by a combination of lines, further information is provided by Dimension.
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A network has three independent file servers, each with 90 percent reliability. The probability that the network will be functioning correctly (at least one server is working) at a given time is:
Answers
Answer:
The correct answer is "99.9%".
Explanation:
According to the information given in the question,
\(P(1 \ fail) = 0.1\)
The probability of all fail will be:
\(P(all \ fail) = (0.1)^3\)
\(=0.001\)
hence,
\(P(not \ all \ fail)= 1-P(all \ fail)\)
\(=0.999\)
\(=99.9\) (%)
Thus the above is the right answer.
What part of a combination vehicle is referred to as the power unit?
Answers
First, the 'power unit' or 'tractor' in trucking refers to the head of a truck, i.e., the engine and driver's cab. The tractor is used to pull the second main part, which is the trailer, a sort of box on wheels in which the cargo is placed.
what do engineers do?
Answers
Answer:
engineers are people who fix or invent items that will support people’s lives. For fun, engineers may construct unique items that is hard to invent.
Explanation:
If you need more info, pls comment.
Answer:
An engineer uses science, technology and math to solve problems. It designes machinery, build skyscrapers and oversee public works.
Technician A uses three prong electrical cords when possible.
Technician B uses double insulated electrical tools. Which technician
is correct?
Select one:
A. Technician A only
B. Technician B only
C. Both technicians
D.Neither technician
Answers
Correct me if I’m wrong tnx
Technician A says that collapsible steering columns may use a pyrotechnic charge. Technician B says that collapsible brake pedals assemblies reduce the risk of trapping the drivers feet. Who is right
Answers
Answer:
I think A is correct
The two technicians are right in their given assessment about the use of collapsible steering columns and collapsible brake pedals to reduce the risk of trapping the driver's feet.
What is Safe Driving?This refers to the vehicular movement from one point to another, obeying traffic rules, and respect for other drivers and pedestrians.
Hence, we can see that with regards to safe driving, the opinions of both Technicians A and B are both correct as they both want the safety of the car and the driver.
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The value of resistance r was determined by measuring current I flowing through the resistance with an error E1=±1. 5% and power loss p in it with an error E2=±1. 0%. Determine the maximum possible relative error to be expected on measuring resistance r, calculated from the formula r=p/I²
Answers
To determine the maximum possible relative error on measuring resistance (r) using the formula r = p/I², the maximum possible relative error to be expected on measuring resistance (r) is 3.16%.
we need to consider the error propagation. The maximum relative error (Δr/r) can be calculated using the formula:
Δr/r = sqrt((Δp/p)² + 4(ΔI/I)²)
Given that the error in power (Δp) is ±1.0% and the error in current (ΔI) is ±1.5%, we can substitute these values into the formula:
Δr/r = sqrt((0.01)² + 4(0.015)²)
Δr/r = sqrt(0.0001 + 4(0.000225))
Δr/r = sqrt(0.0001 + 0.0009)
Δr/r = sqrt(0.001)
Δr/r = 0.0316
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Identify the branch of study each student should pursue.
Answers
Answer:
Explanation:
i took the test and screenshot it
If you want to revise a sketch or a feature when using a 3D CAD program, how do you make a correction without using the undo function
Answers
Answer:
See explanation
Explanation:
Truthfully, this answer can vary depending on the CAD program you are choosing to use. Generally, you go to your model tree (this has been on the left hand side of the screen in all of the CAD software I have used) and click the sketch or feature to edit. In some programs this is a left click and in others this is a right click. When the feature is correctly selected a menu should appear with the option to edit feature/sketch/definition/etc. Select this option and you should be able to edit what you wanted to.
Were women treated as equals to men in early aviation history?
Answers
Answer:
No
Explanation:
In the early Aviation history men have always dominated the world of aviation and women are notoriously under-represented, particularly in technical and leadership roles. Therefore, women was treated unequal.
Help I need fast is it true or false
Answers
Answer:
False
Explanation:
It can only survive outside of the body for six days
If chestnut hair (E) is dominant over black hair (e), can two horses with black hair produce an offspring with chestnut hair? Explain your answer.
Answers
Answer:
No, the offspring of two black horses cannot have chestnut hair. Since the black hair allele is recessive, both parents have to be hz recessive and do not carry the dominant chestnut hair allele. The only allele the parents can pass back to their offspring is the black allele.
Explanation:
Edg. 2022
Answer: The offspring of two black horses cannot have chestnut hair. Since the black hair allele is recessive, both parents have to be his recessive and do not carry the dominant chestnut hair allele. The only allele the parents can pass back to their offspring is the black allele.
Explanation:
what safety hazard might occur if a partially filled aerosol can is exposed to excessive heat?
Answers
If a partially filled aerosol can is exposed to excessive heat, there is a risk of the can exploding.
The heat can cause the pressure inside the can to increase, and if the pressure becomes too great, the can could burst open. This can cause the contents of the can to be released in a high-pressure spray, which can be dangerous if the contents are flammable, toxic, or otherwise hazardous. In addition, the force of the explosion could send metal shrapnel flying in all directions, which can cause injury to anyone nearby. Therefore, it is important to store aerosol cans in a cool, dry place away from heat sources and to dispose of them properly if they become damaged or expired.
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2.2.2 Make a list of the electronic components that could be used in making this product (energy saving switch).
Answers
The electronic components that could be used in making of energy saving switch are:
Transistors semiconductor devices CapacitorsCoils (inductors) Which electronic component is used as a switch?Transistors as well as other kinds of semiconductor devices are known to be tools or element that can be used in the making of switches. In its use or applications.
Note that the base or gate of a transistor, based on the kind of transistor that is known to be in use, and it is one that is often employed as a form of control element to be able to switch on as well as switch off the current that often exist between the emitter as well as the collector or the source and that of the drain.
Note also that the electronic components that are able to store energy in regards to electronic devices, are known to be capacitors and coils (inductors) and they often play a key function of temporarily saving energy. One key role of a capacitor is to save an electric charge.
Therefore, The electronic components that could be used in making of energy saving switch are:
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what are the two safety precautions taken before driving a car
Answers
Answer:
1. Check mirrors2. Put on your seat beltExplanation:
1. Checking your mirrors are very important because if someone screwed with them then it can mess up your driving.
2. Putting on your seat belt is a law so you must put it on and it can save your life one day.
handy hank’s fasteners sells generic products, like nails, screws, and glue, among other things (not serialized). what is the maximum cardinality between each instance of "customer " and "product"?
Answers
The largest amount of data objects that can take part in a relationship instance, access to a much larger pool of prospective customers.
What does "customer" mean to you?An individual or corporation that purchases products or services from another company is known as a customer. Consumers are crucial to businesses because they generate income; without them, they would cease to exist. If no possessive signal is required, avoid using an apostrophe. Apostrophes can also be employed to denote missing words or contractions by placing a "s" after them.
How do you categorize your clients?
Your consumer groups can be segmented using demographic, psychographic, technological, behavioral, needs-based, or value-based approaches. These models may be used separately or in combination to categorize clients into different groups that share characteristics.
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A motor with an operating resistance of 32 Ω is connected to a voltage source. The current in the circuit is 3.8 A. What is the voltage in the circuit?
Answers
Answer:
121.6 volts
Explanation:
V = IR
V = (3.8 A)(32 Ω) = 121.6 volts
Determine the enthalpy of combustion of methane (CH4) at 25oC and 1 atm, using the enthalpy of formation data from Table A–26. Assume that the water in the products is in the liquid form. Compare your result to the value listed in Table A–27.
Answers
The enthalpy of combustion of methane at 25°C and 1 atm, assuming that the water in the products is in the liquid form, is -802.3 kJ/mol.
What is enthalpy?The enthalpy of combustion of methane can be calculated using the enthalpy of formation data for methane and water, and the balanced chemical equation for the combustion reaction:
CH4 + 2O2 -> CO2 + 2H2O
The enthalpy change for this reaction can be calculated using Hess's law, which states that the enthalpy change for a reaction is equal to the sum of the enthalpy changes for a series of reactions that add up to the original reaction. In this case, we can use the following reactions:
CH4 + 2O2 -> CO2 + 2H2O (target reaction)
CH4 + 2O2 -> CO2 + 2H2O + 890.3 kJ/mol (enthalpy of formation of CH4)
H2(g) + 1/2O2(g) -> H2O(l) + 285.8 kJ/mol (enthalpy of formation of H2O)
To use Hess's law, we need to reverse the second equation and multiply it by -1, and add it to the first equation to cancel out the H2O on the product side:
CH4 + 2O2 -> CO2 + 2H2O (target reaction)
CH4 + 2O2 -> CO2 + 2H2O + 890.3 kJ/mol (enthalpy of formation of CH4)
H2O(l) -> H2(g) + 1/2O2(g) -285.8 kJ/mol (enthalpy of formation of H2O)
Adding the three equations, we get:
CH4 + 2O2 -> CO2 + 2H2O, ΔH = -802.3 kJ/mol
Therefore, the enthalpy of combustion of methane at 25°C and 1 atm, assuming that the water in the products is in the liquid form, is -802.3 kJ/mol.
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