Justine was feeling very sick she went to the doctor who told her she had a bacterial infection and withdrew blood for blood work. Which component in justines blood would be higher than normal
Plasma
White blood cells
Red blood cells
Platelets
Answers
Answer:plasma
Explanation:
plasma white blood cells red blood cells platelets.
Related Questions
- Jed was told to put some containers in one of the cold stores at work.
The labels read 'Store below -5°C'. There are two store rooms. One is
kept at 15°F and one at 25°F. Which one should he choose?
Answers
Answer:
15 because it is the closest
Explanation:
The data below show the concentration of AB versus time for the following reaction: AB(g)→A(g)+B(g) Time (s) [AB] (M)
0 0.950
50 0.459
100 0.302
150 0.225
200 0.180
250 0.149
300 0.128
350 0.112
400 0.0994
450 0.0894
500 0.0812
Determine the value of the rate constant.Predict the concentration of AB at 21 s .
Answers
The concentration of AB at 21 s is 0.526 M.
The data below show the concentration of AB versus time for the following reaction:
AB(g)→A(g)+B(g)Time (s) [AB] (M)0 0.95050 0.459100 0.302150 0.225200 0.180250 0.149300 0.128350 0.112400 0.0994450 0.0894500 0.0812
Determine the value of the rate constant:
The reaction is a first-order reaction. The concentration of AB changes as follows:
[AB]t = [AB]0e^-ktln
([AB]t/[AB]0) = -ktln
(0.459/0.950) = -k(
0.693)k = 1.88 × 10^-3 s^-1
The rate constant value is 1.88 × 10^-3 s^-1.
Predict the concentration of AB at 21 s.
The formula for a first-order reaction is given by ln
([A]t/[A]0) = -ktln([AB]t
[AB]0) = -kt[AB]t = [AB]0 e^-kt
[AB]t = (0.950) e^-(1.88 × 10^-3)(21)[AB]t = 0.526 M.
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Cooper, Zach and Nate did this experiment dissolving 3.80 g of Cu(C2H3O2)2·H2O and adding 8.60 g NaC7H4SO3N·H2O (assume present in excess).
What is the theoretical yield of the product, Cu(C7H4SO3N)2(H2O)4·2 H2O(s)?
Molar Mass of Copper(II) acetate monohydrate = 199.65 g/mol
Molar Mass of Sodium saccharinate monohydrate = 223.18 g/mol
Molar Mass of product = 535.59 g/mol
Answers
The theoretical yield of the product, Cu(C₇H₄SO₃N)₂(H₂O)₄·2H₂O(s), is 10.189 g.
Molar Mass of Copper(II) acetate monohydrate = 199.65 g/mol
Molar Mass of Sodium saccharinate monohydrate = 223.18 g/mol
Molar Mass of product = 535.59 g/mol
The balanced chemical equation for the reaction is:
Cu(C₂H₃O₂)₂·H₂O(aq) + 2NaC₇H₄SO₃N·H₂O(aq) → Cu(C₇H₄SO₃N)₂(H₂O)₄·2H₂O(s) + 2NaC₂H₃O₂(aq)
Moles of Cu(C2H3O2)2·H2O used = Mass / Molar mass
= 3.80 g / 199.65 g/mol
= 0.01902 mol
Moles of NaC₇H₄SO₃N·H₂O used = Mass / Molar mass
= 8.60 g / 223.18 g/mol
= 0.03853 mol
Since the ratio of Cu(C₂H₃O₂)₂·H₂O to Cu(C₇H₄SO₃N)₂(H₂O)₄·2H₂O is 1:1, therefore, the number of moles of (Cu(C₇H₄SO₃N)₂(H₂O)₄·2H₂O produced would also be 0.01902 mol (i.e., equal to the number of moles of Cu(C₂H₃O₂)₂·H₂O used).
Mass of product = Number of moles of product × Molar mass
= 0.01902 mol × 535.59 g/mol
= 10.189 g
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chegg he enthalpy of combustion of heptane is â€""48.06 kJ/g. Combustion of 4.04 g of heptane causes a temperature rise of 4.24°C in a certain bomb calorimeter. What is the heat capacity of this bomb calorimeter?
Answers
The heat capacity of the bomb calorimeter is approximately -0.702 kJ/K.
To determine the heat capacity of the bomb calorimeter, we can use the equation:
q = CΔT
where:
q is the heat absorbed or released in the calorimeter,
C is the heat capacity of the calorimeter, and
ΔT is the temperature change.
In this case, the combustion of 4.04 g of heptane caused a temperature rise of 4.24°C. We need to convert this temperature change to Kelvin by adding 273.15 to the Celsius value:
ΔT = 4.24 + 273.15 = 277.39 K
The enthalpy of combustion of heptane is given as -48.06 kJ/g. We need to convert the mass of heptane to grams:
Mass of heptane = 4.04 g
Now we can calculate the heat absorbed or released during the combustion of heptane using the enthalpy of combustion:
q = (Enthalpy of combustion) × (Mass of heptane)
= (-48.06 kJ/g) × (4.04 g)
To convert kilojoules (kJ) to joules (J), we multiply by 1000:
q = (-48.06 kJ/g) × (4.04 g) × (1000 J/1 kJ)
= -194.6624 kJ
The heat capacity of the bomb calorimeter, C, can be calculated by rearranging the equation:
C = q / ΔT
C = (-194.6624 kJ) / (277.39 K)
Calculating this division:
C ≈ -0.702 kJ/K
Therefore, the heat capacity of the bomb calorimeter is approximately -0.702 kJ/K. Note that the negative sign indicates that the calorimeter absorbs heat during the reaction.
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.
A student observes what happens when two different aqueous solutions are mixed in a test tube. Which of the following observations would be most indicative of a precipitation reaction?
Gas bubbles are produced.
There is a color change.
The test tube warms.
A solid settles out.
Answers
Answer:
a solid settles out
Explanation:
a precipitate is when a solid forms
3. A helium laser emits light with a wavelength of 6.33 x 10^-7m. What is
the frequency of the light? *
2.11 X10^15 Hz
O 4.74 x 10^14 Hz
O 18.99 Hz
N
Answers
Answer:
4.52 x 10¹⁴ cycles/s
Explanation:
From c = f·λ => f = c/λ = (3.0 x 10⁸ m/s)/(6.63 x 10⁻⁷m) = 4.52 x 10¹⁴ cycles/s.
f = frequency = ?
λ = wavelength = 6.63 x 10⁻⁷ meter
c = speed of light in vacuum = 3.0 x 10⁸ meters/s
A helium laser emits light with a wavelength of 6.33 x 10⁻⁷m. The frequency is 4.74 x 10¹⁴ cycles/s.
What is wavelength?Wavelength is defined as the separation between similar points (adjacent crests) in successive waves of a waveform signal that have traveled across space or along a wire. The length of a "sine wave's" shortest repeating segment is known as its wavelength. Sine waves can be combined to create any type of wave. That is, a Fourier analysis can be used to determine that every wave is made up entirely of sine waves.
Frequency is defined as the amount of times a repeated event occurs in one unit of time. Frequency can be expressed as
F = c / λ
Where c = speed if light = 3 x 10⁸ m/s
λ = wavelength = 6.33 x 10⁻⁷m given
F = 3 x 10⁸ / 6.33 x 10⁻⁷m
F = 4.74 x 10¹⁴ cycles/s.
Thus, a helium laser emits light with a wavelength of 6.33 x 10⁻⁷m. The frequency is 4.74 x 10¹⁴ cycles/s.
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Fill in the coefficients in the following format 1st, 2nd, 3rd, 4th
C2H2+O2=CO2+H2O
Answers
Which body system includes the heart?
Answers
A photon has an energy of 2.88×10^-18 J . Convert energy into eV.
Answers
A photon has an energy of 2.88 × 10⁻¹⁸ J. The energy into eV is 17.97 eV.
What is Photon Energy ?The energy which is carried by a single photon is called Photon energy.
It is expressed as:
E = hf
where,
E = Photon energy
h = Planck's energy
f = Wave frequency
How to convert Joules (J) into Electron volt (eV) ?To convert J into eV
E(eV) = E(J) × 6.241509 × 10¹⁸
= 2.88 × 10⁻¹⁸ × 6.241509 × 10¹⁸
= 17.97 eV
Thus from the above conclusion we can say that A photon has an energy of 2.88 × 10⁻¹⁸ J. The energy into eV is 17.97 eV.
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URGENT! What occurs during a chemical reaction. :)
A.) Atoms of two or more elements are destroyed.
B.) Atoms of two or more elements oppose one another.
C.) Atoms of two or more elements bond together.
D.) Atoms of two or more elements trade protons.
Answers
copper nitrate and potassium sulfate are produced when potassium hydroxide reacts with copper sulfate balanced equation
Answers
Answer:
Copper(II) nitrate and potassium hydroxide are soluble ionic compounds, which implies that they dissociate completely when dissolved in water to produce ions. ... You can thus say that the balanced chemical equation that describes this double ...
Cu(NO3)2(aq)+2KOH(aq)→Cu(OH)2(s)⏐⏐↓+2KNO3(aq).
Explanation:
Which element is the least likely to be produced by nuclear fusion?A. hydrogen, which has a mass of about 1chlorine,B. which has a mass of about 35argon,C. which has a mass of about 39silicon,D. which has a mass of about 28
Answers
Out of the given options, the element that is least likely to be produced by nuclear fusion is chlorine. This is because nuclear fusion occurs when lighter elements combine to form heavier elements, but chlorine already has a relatively high mass compared to the other options.
Hydrogen, on the other hand, is the most common element produced by nuclear fusion as it is the simplest and lightest element.
Argon and silicon are also commonly produced in nuclear fusion reactions, with silicon being particularly important in the process of nucleosynthesis that occurs in the cores of massive stars. In summary, while all the listed elements can be produced by nuclear fusion, chlorine is the least likely to be formed through this process.
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Answer:
Which element is nuclear fusion least likely to produce?
✅ hydrogen, which has an approximate mass of 1
or A.)
❌ chlorine, which has an approximate mass of 35
❌ argon, which has an approximate mass of 39
❌ silicon, which has an approximate mass of 28
Determine the major organic product(s) of the following reaction. Include appropriate stereochemistry in answer. Be sure to consider which mechanism would dominate (SN1, SN2, E1, or E2) when predicting the product.
Answers
The major organic product of the given reaction would depend on the mechanism that dominates, either SN1, SN2, E1, or E2.To determine the major organic product, we need to consider the mechanism that would dominate in the given reaction.
SN1 mechanism: If the reaction proceeds through the SN1 mechanism, the major product would be the carbocation intermediate, followed by the nucleophilic attack. The stereochemistry would depend on the attack of the nucleophile, and it may result in the formation of both retention and inversion products.
SN2 mechanism: If the reaction proceeds through the SN2 mechanism, the major product would be the direct substitution of the leaving group by the nucleophile. The stereochemistry of the product would be inverted, as the nucleophile attacks from the opposite side of the leaving group.
E1 mechanism: If the reaction proceeds through the E1 mechanism, the major product would be the elimination of the leaving group to form a double bond. The stereochemistry would depend on the orientation of the leaving group and the hydrogen atoms involved in the elimination.
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Which of these items found on a food label IS NOT a food?
Calories
Sugar
Proteins
Total fats
Answers
Answer:
the first one Calories
We want to separate 45 kg/hr of 50 mol% benzene in toluene entering as a saturated liquid into streams of 85 mol% benzene and 90 mol% toluene. 1. (4 pts) What is the minimum number of theoretical (equilibrium) stages required to achieve this separation
Answers
The minimum number of theoretical (equilibrium) stages required to achieve the separation of 45 kg/hr of 50 mol% benzene in toluene entering as a saturated liquid into streams of 85 mol% benzene and 90 mol% toluene is 10.
To determine the minimum number of theoretical (equilibrium) stages required to achieve this separation, we can use the McCabe-Thiele method.
First, draw the equilibrium curve for the benzene-toluene system using the given compositions. The equilibrium curve represents the compositions of the vapor and liquid phases in equilibrium at each stage of the separation.
Next, draw a diagonal line representing the feed composition on the graph. The point where this line intersects the equilibrium curve is the point where the feed is in equilibrium with the vapor leaving the first stage. From this point, draw a horizontal line to the y-axis (representing the mole fraction of benzene) to find the composition of the vapor leaving the first stage. This composition is higher in benzene than the feed composition, indicating that the vapor is enriched in benzene compared to the liquid.
Repeat this process for each subsequent stage, drawing a diagonal line from the previous stage's vapor composition to the equilibrium curve, and then drawing a horizontal line to find the composition of the vapor leaving the current stage. Continue until the composition of the vapor leaving the final stage (which should be at least 85 mol% benzene) is reached.
Count the number of stages required to achieve this separation. In this case, the minimum number of theoretical (equilibrium) stages required to achieve this separation is approximately 10.
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KINDLY PARAPHRASE THE FOLLOWING PARAGRAPHS:
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Growth in Distribution Spaces
An essential part of the e-commerce business is its supply chain. Figuring out the logistics for packaging and shipping goods to customers includes warehousing, and that’s where commercial real estate comes into play. As e-commerce has grown, we have seen significant growth in the leasing and sale of distribution centers and warehouse spaces.
E-commerce giants look for spaces near large cities like Houston while still having enough space for large buildings. There is a lot of potential and growth in the Houston suburbs such as Katy, Brookshire & Waller. We are seeing more distribution centers popping up in these areas.
Smaller Retail Spaces
As retail has shifted to online, we have seen businesses struggling to keep physical spaces open over the past few years. While e-commerce is booming, some brick-and-mortar spaces are having to close or downsize.
There are certain markets, like groceries, that will always require a physical location, but there is a trend for smaller retail spaces across the market. Smaller spaces mean less inventory in-store, and this consequently encourages a combination of online and in-store shopping. Hybrid shopping especially increased in popularity during the Covid-19 lockdown.
Merging online shopping with curbside or in-store pick-up offered that element of convenience and a safe way to shop during the pandemic, and even as restrictions ease, people will still seek the ease of this approach. However, even though convenience is what mainly drives e-commerce, we don’t expect to see in-store experiences disappear altogether.
Increased Technology in Retail
Since many prefer shopping online, working to translate the benefits of technology to physical spaces has been important in keeping up with trends. Integrating technology into retail spaces will be essential for future leasing and selling opportunities in the market. Implementing tools such as apps can create unique and convenient shopping experiences and can help businesses gather data that is essential for tracking traffic and learning more about the customer.
These tools can also help drive customers to the retail location with special offers or in-store pickup options. Large lifestyle shopping centers have shown to be among the most proactive in blending technology with consumer experiences.
Overall, e-commerce has a major impact on the commercial real estate business, from the industrial real estate benefit from its growth to seeing space buying and leasing becoming a smaller part of retail operations. In 2020 alone, e-commerce accounted for 14 percent of all sales, but it is inevitable that e-commerce will continue to grow as it has for the last decade. Commercial real estate is a reflection of society and its habits and we will continue to see it mirrored as changes in technology and retail emerge.
---------------------------------------------------------------------------------
Answers
The impact of e-commerce on commercial real estate is significant. E-commerce sales have grown steadily, accounting for a considerable portion of overall sales.
The growth of e-commerce has fueled the demand for distribution spaces, specifically distribution centers and warehouses, which play a crucial role in the supply chain and logistics of packaging and shipping goods to customers. These spaces are sought after by e-commerce giants, who prefer locations near large cities while still providing ample room for large buildings. Suburban areas, such as Katy, Brookshire, and Waller near Houston, are experiencing significant growth in the establishment of distribution centers.
On the other hand, the rise of online shopping has posed challenges for brick-and-mortar retailers. Many physical retail spaces have struggled to remain open or have had to downsize. As a result, there is a trend towards smaller retail spaces, which require less inventory in-store. This trend encourages a combination of online and in-store shopping, known as hybrid shopping. The Covid-19 pandemic further accelerated this trend as consumers sought the convenience and safety of online shopping with options like curbside or in-store pick-up. Even as restrictions ease, this approach is expected to remain popular.
To adapt to the changing retail landscape, integrating technology into physical retail spaces has become crucial. Technology tools, such as mobile apps, can enhance the shopping experience, offer special promotions, and provide valuable data on customer behavior. Retailers, especially large lifestyle shopping centers, have been proactive in blending technology with consumer experiences to stay relevant and attract customers.
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A 0.772g sample of an unknown compound, composed only of carbon and hydrogen, produced 2.31g of CO2 and 1.26g of H2O in a combustion analysis. What is the mass percent composition of carbon of the unknown compound?
Answers
The percent mass composition of carbon of the unknown compound is 42.8%.
What is the mass percentage of carbon in the given unknown compound?The mass percentage of carbon in the given unknown compound is calculated as follows:
moles of substance = mass / molar massmolar mass of carbon dioxide = 44.0 g/mol
molar mass of carbon = 12 g/mol
molar mass of water = 18 g/mol
molar mass of hydrogen = 1.0 g/mol
Moles of carbon dioxide = 2.31/44
Moles of carbon dioxide = 0.0525 moles
Moles of Carbon = 0.0525 moles
mass of carbon = 0.0525 * 12
mass of carbon = 0.105 g
Moles of water = 1.26/18
Moles of water = 0.07 moles
Moles of hydrogen = 0.07 * 2
Moles of hydrogen = 0.14 moles
mass of hydrogen = 0.14 * 1
mass of hydrogen = 0.14
mass of compound = 0.105 + 0.14
mass of compound = 0.245
Percentage mass of carbon = 0.105/0.245 * 100
Percentage mass of carbon = 42.8%
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PLEASE! I HAVE 20 MINS LEFT :( Two aqueous solutions of AgNO3 and NaCl are mixed. Which of the following diagrams best represents the mixture? For simplicity, water molecules are not shown (Ag + = gray, Cl- = orange, Na + = green, NO ^ - 3 = blue) PLEASE I NEED HELP I ONLY HAVE 15 MINS PLS :'((
Answers
Answer:
diagram C best represents the mixture
What does NIBIN stand for? (Forensic Science)
Answers
Answer:National Integrated Ballistic Information Network
Explanation:
Answer:
National Integrated Ballistic Information Network
Explanation:
gradpoint
for the sulfate ion drawn in the form where the central s atom bears a formal charge of 1, there are:
Answers
There are 4 oxygen atoms bonded to the central sulfur atom, each with a formal charge of -1. The overall charge of the sulfate ion is -2.
For the sulfate ion (SO₄²⁻) drawn with the central sulfur (S) atom bearing a formal charge of +1, there are:
- 4 oxygen (O) atoms surrounding the central sulfur atom
- A total formal charge of -2 on the ion, meaning the combined formal charges of the oxygen atoms must be -3
Please note that this representation of the sulfate ion is not the most common or stable form. Typically, the sulfur atom has a formal charge of 0, with two oxygen atoms having a single negative charge and two oxygen atoms having double bonds.
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is a single cell the smallest structure that carries out our activities nesscesary for life
Answers
yep, the cell is the smallest unit in a living organism that is capable of carrying out all of the activities of life.
3.
a) Using the five-step method, predict the predominant Bronsted-Lowry acid base
reaction when solutions of perchloric acid and sodium dihydrogen phosphate are
combined.
b) Identify one conjugate acid-base pair from the reaction equation.
c) Predict whether the equilibrium will favour the formation of the reactants or
products. Support and explain your answer.
Answers
Answer:
a) The predominant Brownstead-Lowry acid- base is perchloric acid
b) A conjugate acid base pair is HClO4 and ClO4^-
c) forward reaction is favored and equilibrium position lies towards the far right
Explanation:
The molecular equation is;
HClO4(aq) + NaH2PO4(aq) -----> H3PO4(aq) + NaClO4(aq)
The net ionic equation of the reaction is;
H^+(aq) + H2PO4^-(aq) ----> H3PO4(aq)
The predominant Brownstead-Lowry acid- base is perchloric acid .
A conjugate acid base pair is HClO4 and ClO4^-
Since the both species; perchloric acid and sodium dihydrogen phosphate are both highly soluble in water yielding ions and also dissociate to a large extent in solution, the forward reaction is favoured leading to the formation of phosphoric acid. Remember that phosphoric acid does not easily dissociate in solution hence the forward reaction is faster than the reverse reaction and the equilibrium position lies towards the far right.
Edwin rotates the Moon around the Earth to show a full month. After one full revolution around the Earth, the Moon casts a shado
on the Earth again. Another student states that if this models the Sun, Earth and Moon correctly, then a solar eclipse would happe
once a month.
Edwin found out a solar eclipse happens about once every 18 months. How should Edwin improve his model to better represent
how often eclipses occur?
OA. He should make both the Earth and the Moon spin on their tilted axes.
OB.
He should make the Sun a large, round object.
OC. He should make the Moon orbit Earth at an angle to the table, and not parallel
Answers
Answer:
C
Explanation:
Parallel makes the shadow happen every month
non parallel would be less frequent
He should make the Moon orbit Earth at an angle to the table, and not parallel. So, the correct option is C.
What is an orbit?The curving path that an object in space takes around another object as a result of gravity is known as an orbit. Moons orbiting planets, planets orbiting planets, and artificial satellites orbiting the Earth are examples of objects where this is frequently seen.
A route that an object in space follows around another is known as an orbit. A satellite is a thing that orbits the earth. An Earth- or moon-like natural satellite is one possibility. Moons are satellites that orbit many planets. A man-made satellite is also possible, such as the International Space Station.
The solar system's planets, comets, asteroids, and other celestial bodies revolve around the sun. The majority of solar system objects travel along or very near a hypothetical flat surface. The ecliptic plane is the name given to this hypothetical plane.
Therefore, the correct option is C.
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which of the following best explains the pattern in no concentration? responses no is a secondary pollutant with a long residence time in the atmosphere. no is a secondary pollutant with a long residence time in the atmosphere. no does not play a significant role in smog formation. no does not play a significant role in smog formation. no is formed in the lower atmosphere in the morning by the rising sun. no is formed in the lower atmosphere in the morning by the rising sun. no is produced by rush-hour traffic and is quickly oxidized in the atmosphere. no is produced by rush-hour traffic and is quickly oxidized in the atmosphere. no is quickly absorbed by plants and converted to sugars.
Answers
The best explanation for the pattern in no concentration is that no does not play a significant role in smog formation. Although it is a secondary pollutant, it has a long residence time in the atmosphere and is not quickly oxidized. Furthermore, it is not formed by rush-hour traffic or the rising sun in the morning. Instead, it is likely that no is being absorbed by plants and converted to sugars, which is why it is not found in high concentrations in the atmosphere. This process helps to remove no from the atmosphere and may explain why it does not contribute significantly to smog formation. Overall, the lack of significant no concentration in the atmosphere may be due to the fact that it is being absorbed and processed by plants, rather than being produced by human activity or other natural processes.
NO concentration is that "NO is produced by rush-hour traffic and is quickly oxidized in the atmosphere." Nitrogen oxide (NO) is a secondary pollutant that is generated mainly from human activities, such as vehicle emissions during rush-hour traffic. Once released into the atmosphere, NO reacts with other compounds and is quickly oxidized, playing a significant role in smog formation. This oxidation process helps to maintain the balance of NO concentrations in the lower atmosphere. In contrast, the other statements do not accurately describe the pattern of NO concentration in the atmosphere.
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Fossil fuels are fuels such as coal, oil, and natural gas. They are formed over millions of years from the remains of ancient plants and animals. What is the relationship between fossil fuels and energy?
A. Fossil fuels are a form of chemical energy. B. Fossil fuels are a form of nuclear energy. C. Fossil fuels are a form of mechanical energy. D. Fossil fuels are a form of geothermal energy
Answers
Fossil fuels are a form of chemical energy stored from ancient organic matter and are used as a valuable energy source.
The right response is A. Petroleum products are a type of synthetic energy.Petroleum products are hydrocarbons that contain put away energy from natural matter, which is changed over into fuel through a characteristic interaction that requires a long period of time.
At the point when petroleum products are singed, they discharge the put away compound energy as intensity, which can then be changed over into different types of energy, like electrical energy, mechanical energy, or nuclear power.
This makes petroleum products a significant wellspring of energy for human utilization, especially in transportation and power age.Petroleum products are non-sustainable wellsprings of energy, implying that they will ultimately run out.
Also, the consuming of non-renewable energy sources discharges carbon dioxide and other ozone harming substances into the air, adding to environmental change.
This has prompted expanded interest in sustainable power sources, for example, sunlight based, wind, and hydroelectric power, which don't create ozone harming substance emanations and are not expose to consumption like petroleum products.
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a person is holding a match that is burning. List the components of the system and the surroundings
Answers
The components of the system are antimony trisulfide used for fuel, ammonium phosphate prevents excessive smoking, potassium chlorine is the key to ignition, it makes the fuel burn. At last, another important component of the system is oxygen, which makes ignition possible. Remember that all combustions need oxygen to happen.
32P is used to treat some diseases of the bone. Its half-life is 14 days. Find the time it would take for a sample of 32P to decay from an activity of 10,000 counts per minute to 8,500 counts per minute
Answers
Therefore, the time it would take for the sample of 32P to decay from 10,000 counts per minute to 8,500 counts per minute is approximately X days, which is equal to one half-life cycle.
The half-life of 32P is 14 days, which means that in 14 days, half of the radioactive material will decay. To calculate the time it would take for the activity to decrease from 10,000 counts per minute to 8,500 counts per minute, we can find the difference in counts (10,000 - 8,500 = 1,500) and use it to determine the number of half-life cycles needed to reach the desired activity level.
Since each half-life cycle reduces the activity by half, we can calculate the number of half-life cycles by dividing the difference in counts by the decrease per half-life cycle (1,500 counts / (10,000 - 8,500) counts = 1). This means that one half-life cycle is required.
Since the half-life is 14 days, the time it would take for one half-life cycle to occur is 14 days. Therefore, the time it would take for the sample of 32P to decay from 10,000 counts per minute to 8,500 counts per minute is approximately X days, which is equal to one half-life cycle.
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During the nitrogen cycle, through which structure are nitrogen compounds first absorbed into the plant?
A. Roots
B. Leaves
C. Flower
D. Steam
Answers
So, the correct answer is: A. Roots
deduce the formula of selenide
Answers
Taking two positively charged objects and holding them close to one another creates a system with electric potential energy
One way to lower the electric potential energy in a system like this would be to
A increase the distance between the two charges.
B decrease the distance between the two charges.
C decrease the mass of one of the objects
D increase the mass of one of the objects
Answers
Electric potential energy is the energy that is stored in a system of two or more electrically charged objects due to their position relative to each other. As the distance between the charged objects increases, the electric potential energy of the system decreases. This is because the electrical force between the objects decreases as the distance between them increases. Therefore, by increasing the distance between two positively charged objects, the electric potential energy of the system will decrease.
Decreasing the distance between the two charges (option B) would actually increase the electric potential energy of the system, as the electrical force between the objects would increase. Changing the mass of the objects (options C and D) would not have any effect on the electric potential energy of the system, as electric potential energy depends only on the charges and their separation distance.