Answers
By applying the Bernoulli's equation on the same level, swap out the values to determine the pressure at the host, which is equal to 1.01 x 10 to the five Pascal's places, half of the density, which is equal to 1000 kg per cubic meter times 25.5 m/s squared, minus 1.96 m/s script. The pressure at the hose is then equal to four times 25 Pascal's.
What is Bernoulli's equation?
According to Bernoulli's principle, areas of a fluid flow that are moving more quickly will experience less pressure than areas that are moving more slowly.
What does the Bernoulli equation's head loss mean?
The drop in total pressure, which is the sum of the velocity head, pressure head, and elevation head of the fluid moving through the hydraulic system, is represented by the head loss in Bernoulli's equation.
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Related Questions
The photo shows a Newton's cradle. The ball on the left can be pulled away
from the others. After the ball is released, it strikes the next ball in line and
the ball on the far right side of the toy moves up and away,
What most likely explains the motion of the ball on the far right?
A. The mechanical energy of the ball on the left is transferred in the
form of waves to the ball on the right
B. The potential energy of the ball on the left is transferred directly to
the ball on the right
C. The potential energy of the ball on the left is transferred in the
form of waves to the ball on the root
D. The mechanical energy of the ball on the left is transferred through
the other balls to the ball on the right
Answers
The characteristics of the conservation of energy and momentum allow to find the result for the movement of the balls, the correct answer is:
D. The mechanical energy of the ball on the left is transferred through
the other balls to the ball on the right.
Mechanical energy is the sum of the kinetic energy and the potential energies. In the case that there is no friction, the mechanical energy is conserved.
The momentum is defined by the product of the mass and the velocity of the body, in an isolated system the momentum is conserved and the shocks can be of two types:
Inelastic. Where part of the energy is transformed into internal energy and the kinetic energy is not conserved. Elastic. Where kinetic energy is conserved.
In the case indicated, when removing the ball, it gains a height, therefore if the initial mechanical energy is
Em₀ = mgh
When it reaches the lowest point, just before it hits the ball its energy is:
\(Em_f\) = 1 / 2m v²
Em₀ = Em_f
v = \(\sqrt{2gh}\)
collides with the other ball and transfers its momentum in an elastic collision, the balls do not stick, as all the energy of the ball is kinetic, this energy is transferred to each ball until it reaches the last one, where the kinetic energy is transformed into potential energy a increases its height.
Let's analyze the answers:
A. False. This is a collision of particles there are no waves.
B. False. At the lowest point the ball on the left has kinetic energy.
C. False. It is a collision of particles, there are no waves.
D. True. The energy from the elastic collisions is transferred through each ball until it reaches the last ball.
In conclusion, using the characteristics of the conservation of energy and momentum, we can find the result for the movement of the balls, the correct answer is:
D. The mechanical energy of the ball on the left is transferred through the other balls to the ball on the right
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A solution has a pH of 6. What is true about the solution?
A. It is a strong basic solution.
B. It is a weak acidic solution.
C. It is a weak basic solution.
D. It is a strong acidic solution.
please help me
Answers
Answer:
A. it is a strong basic solution
Answer:
(see below)
Explanation:
First, refer to the pH scale:
1 2 3 4 5 6 7 8 9 10 11 12 13 14
<== acidic neutral basic ==>
You can see that the smaller the number, the stronger the acid and the bigger the number, the more basic the base is. 7 is neutral, such as water. it's neither basic nor acidic.
Now, using the process of elimination:
A) It's a strong basic solution.
No, because this solution's pH hasn't even reached basic.
B) It's a weak acidic solution.
Yes, because it is acidic and it's just a little bit more acidic than a neutral solution.
C) It's a weak basic solution.
No, because this solution's pH hasn't even reached basic.
D) It's a strong acidic solution.
No, because even though it's acidic, it's just below neutral. For something to be a strong acidic solution would be around a pH of 3.
So the answer would be B) It's a weak acidic solution.
Many people have said that cold water boils faster than hot water. This is not true. In fact, it’s been said so many times that most people believe it to be a fact. Postulate a reason for why this may have been thought to be true. Is there any scientific evidence backing this claim at all? Please explain your reasoning.
Answers
The claim that cold water boils faster than hot water is not true. The reason why this misconception may have emerged is likely due to a misunderstanding or misinterpretation of certain observations. However, there is no scientific evidence supporting this claim.
One possible reason for this misconception is the notion that hot water takes longer to reach its boiling point because it starts at a higher temperature. When comparing hot and cold water in terms of reaching the boiling point from room temperature, the cold water may appear to boil faster.
However, this is simply because the hot water has already gained a head start in terms of temperature. In reality, once both liquids reach their respective boiling points, the hot water will boil first.
Scientifically, the boiling point of water is determined by its temperature and pressure. Under normal atmospheric conditions, the boiling point of water is 100 degrees Celsius (212 degrees Fahrenheit). Heating water raises its temperature, and once it reaches 100 degrees Celsius, it transitions into the gaseous state. The initial temperature of the water does not affect the boiling point itself.
In conclusion, the claim that cold water boils faster than hot water is a misconception. It likely arose from a misinterpretation of observations, and there is no scientific evidence to support this claim. The boiling point of water is solely determined by its temperature and pressure, regardless of whether the water is initially hot or cold.
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\({ \red {\sf{Define \: Transportational}}}\)
2+x=19
Find x
Answers
Easy!!
2+17=19
#hope that helps
Answer:
To find the answer you may
2+17=19
Explanation:
so that is the answer I'm sorry,to not give all the solutions
The early periodic table grouped elements based on similar properties. Which element would be grouped with sodium using this principle.
A. Magnesium
B. Zinc
C.Potassium
D. Sulfur
Answers
Answer:
C.Potassium
Explanation:
As we know that Potassium is a mineral also at the same time it is an electrolyte. It helps for muscles work involves the muscles so that the heartbeat and breathing could be controlled.
Now as per the periodic table on an early basis that depends upon the similar properties so the element that should be grouped with the sodium is Potassium
hence, the option c is correct
According to the early periodic table the element that has been grouped together with Na has been Potassium. Thus, option C is correct.
The early periodic table has been consisted of the elements that has been arranged based on the increasing order of the atomic mass. The grouping of the elements has been performed based on the similarities with the elements.
The sodium has been the electrolyte that has been responsible for maintaining the electrolyte balance in the human body. The sodium has been the smaller size element with being highly reactive.
The element that has also been small size with high reactive, and has been able to maintain the body electrolyte balance has been Potassium.
Thus, according to the early periodic table the element that has been grouped together with Na has been Potassium. Thus, option C is correct.
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if I am on a bus and I'm relative to A the student sitting next to me B relative to the house the bus goes by?
Answers
PLEASE HELP...
Balance this nuclear reaction by supplying the missing nucleus. Replace each question mark with an appropriate integer or symbol.
Cf98249 + ? ⟶Db105260+410n
Answers
The balanced form of the nuclear equation is as follows; 249/98 Cf + 15/7 N⟶ 260/105 Db + 4(1/0) n.
What is a nuclear equation?A nuclear equation is process such as the fission of an atomic nucleus, or the fusion of one or more atomic nuclei and/or subatomic particles in which the number of protons and/or neutrons in a nucleus changes.
According to this question, Californium element is a reactant to produce dubnium and a neutron as products.
However, the law of conservation of mass must be fulfilled by ensuring the mass and atomic numbers of elements in reactant and product side are the same.
249/98 Cf + 15/7 N⟶ 260/105 Db + 4(1/0) n
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How many moles of N 2 make 1.76 moles of NH 3 ? do you need to. Please help me!
Answers
Some students use an apple to represent the Earth. What is the best reason to use an apple for this comparison?
a. The skin of an apple is very thin, and the crust of the Earth very thin.
b. The flesh of an apple is made of the same material all the way through, and the interior of the Earth is the same all the way through.
c. The seeds of the apple are very light in comparison to the rest of the apple, and the core of the Earth is also made of very light matter.
d. The stem of the apple comes from the core and the North Pole comes from the Earth’s core.
Answers
What do you call a small rocky or metallic object that has crashed on the surface of the Earth?
Meteor
Meteorite
Asteroid
Meteoroid
Answers
Silicon crystals are semiconductors. Which of the following is a correct reason for the increase in the conductivity of Si crystals when a small fraction of Si atoms are replaced with those of a different element?
A: P atoms introduce additional mobile negative charges.
B: P atoms introduce additional mobile positive charges.
C: Ge atoms have more electrons than Si atoms have.
D: Ge atoms are much smaller than Si atoms.
Answers
Answer:
c
Explanation:
it's correct I think and hope
Answer:
A is the right answer.. .............
How are animals used in vaccine development?
Answers
Answer:
Animals whose certain organs closely match those of humans or have similar genetic makeup are used in vaccine tests because the results can closely resemble those same results on humans.
Explanation:
Answer:
they use them to test the effectiveness of the vaccine.
Explanation:
What is the oxidation state of N in NaNOz?
Answers
The oxidation state of nitrogen (N) in NaNO3 is +5. option B
To determine the oxidation state of nitrogen (N) in sodium nitrate (NaNO3), we need to assign oxidation numbers to each element in the compound.
In NaNO3, we know that the sodium ion (Na+) has a +1 oxidation state because it is an alkali metal. Oxygen (O) typically has an oxidation state of -2 in compounds, and there are three oxygen atoms in NaNO3. Since the compound is neutral, the sum of the oxidation states must be zero.
Let's assume that the oxidation state of nitrogen is x. Therefore, we can set up the equation:
(+1) + x + (-2) * 3 = 0
Simplifying the equation:
+1 + x - 6 = 0
x - 5 = 0
x = +5
Therefore, the oxidation state of nitrogen (N) in NaNO3 is +5.
The oxidation state of an element indicates the number of electrons it has gained or lost in a compound. In this case, the nitrogen atom in NaNO3 has gained five electrons to achieve a stable oxidation state of +5.
It is important to note that oxidation states are formal charges and do not necessarily represent the actual distribution of electrons in a compound. They are assigned based on a set of rules and can be useful in understanding the reactivity and behavior of elements in chemical reactions.
Option B
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1. Consider the following reaction where Kc = 1.29×10-2 at 600 K.
COCl2(g) CO(g) + Cl2(g)
A reaction mixture was found to contain 9.87×10-2 moles of COCl2(g), 2.19×10-2 moles of CO(g), and 3.79×10-2 moles of Cl2(g), in a 1.00 liter container.
Is the reaction at equilibrium?
If not, what direction must it run in order to reach equilibrium?
The reaction quotient, Qc, equals _____
The reaction:
A. must run in the forward direction to reach equilibrium.
B. must run in the reverse direction to reach equilibrium.
C. is at equilibrium.
2. Consider the following reaction where Kc = 55.6 at 698 K.
H2(g) + I2(g) 2HI(g)
A reaction mixture was found to contain 2.59×10-2 moles of H2(g), 4.38×10-2 moles of I2(g) and 0.294 moles of HI(g), in a 1.00 liter container.
Is the reaction at equilibrium?
If not, what direction must it run in order to reach equilibrium?
The reaction quotient, Qc, equals ____
The reaction:
A. must run in the forward direction to reach equilibrium.
B. must run in the reverse direction to reach equilibrium.
C. is at equilibrium.
Answers
Answer:
Consider the following reaction where Kc = 1.29×10-2 at 600 K:
COCl2(g) <=> CO(g) + Cl2(g)
A reaction mixture was found to contain 9.85×10-2 moles of COCl2(g), 2.61×10-2moles of CO(g), and 3.71×10-2 moles of Cl2(g), in a 1.00 Liter container.
Indicated true (T) or false (F) for each of the following:
Assign priorities in the following set of substituents according to Cahn-Ingold-Prelog rules.
-OCH3 -Br -Cl -CH2OH
А B C D
(Provide your ranking through a string like abcd, starting with the one with the highest priority).
Answers
Answer:
Assign priorities in the following set of substituents according to Cahn-Ingold-Prelog rules.
-OCH3 -Br -Cl -CH2OH
Explanation:
To give priorities for the substituents that are attached to chiral carbon and to assign either R or S-configuration the following rules were proposed:
1. The atom with the highest atomic number is given first priority.
2. If the Groups attached to chiral carbon are having the same first atom, then check for the atomic number of the second atom.
Among the given groups,
-Br has the highest atomic number, so it is given first priority.
Then, -Cl.
Then, -OCH3
and the last one is -CH2OH.
Hence, the order is :
BCAD.
How to find total mass of water in final solution
Answers
Answer:
Explanation:
Just like a solid, the density of a liquid equals the mass of the liquid divided by its volume; D = m/v. The density of water is 1 gram per cubic centimeter.
A student reads that sodium atoms (Na) react with chlorine (Cl2) molecules to form the compound sodium chloride (NaCl). Which model should the student make to satisfy the Law of Conservation of Matter for the formation of sodium chloride, in simplest form?
Answers
Answer:
c
Explanation:
Law of Conservation of Matter for the formation of sodium chloride, in simplest form would be obeyed when 2 moles of sodium react with 1 ,mole of chlorine to form 2 moles of sodium chloride.
What is law of conservation of matter?According to law of conservation of matter, it is evident that matter is neither created nor destroyed rather it is restored at the end of a chemical reaction .
Law of conservation of matter and energy are related as matter has mass and mass and energy are directly proportional which is indicated by the equation E=mc².Concept of conservation of matter is widely used in field of chemistry, fluid dynamics.
Law needs to be modified in accordance with laws of quantum mechanics under the principle of mass and energy equivalence.This law was proposed by Antoine Lavoisier in the year 1789.
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Which of the following is NOT powered by alternating current?
A) household electrical outlets
B) power tools
C) toasters
D) batteries
Answers
Answer:
batteries
Explanation:
bc they're powered by energy
Calculate the molarity of a MgSosolution
prepared by adding 0.37 moles of MgSO, to
enough water to make 11 of solution.
Answer in units of V.
Answers
Answer:
is
Explanation:
because
place each sample of soil on separate cups/containers
Answers
To ensure proper separation and identification of each sample of soil, it is recommended to place each sample in separate cups or containers. This practice helps maintain the integrity of the samples and prevents cross-contamination.
By using individual cups or containers, you create distinct compartments for each soil sample, allowing you to analyze them separately and avoid any potential mixing of characteristics or contaminants.
Label each cup or container with a unique identifier, such as a number or code, to track and reference the samples accurately.
Separating the soil samples also facilitates organization and documentation.
You can record specific information for each sample, including the location it was collected from, date, depth, and any relevant observations. This meticulous approach ensures reliable analysis and easier retrieval of specific samples for future reference or additional testing if needed.
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what is derived from sheep and goats that is used in break fluid
A bones and horns
B Fats and Fattys acids
C Manure
D Wool and Lanolin
Answers
the answer is A I took the test
Which of the following best identifies where long range order would be found
Answers
Answer:
in Crystalline solids
Explanation:
1) ____C3H8 + ____O2 → ____CO2 + ____H2O
Answers
The overall process that uptakes energy-poor molecules (CO2 and H2O) from their reservoirs in nature and converts them into energy-rich molecules is
Answers
Answer:
Photosynthesis
Explanation:
Photosynthesis is a process by which photosynthetic organisms use the energy of captured sunlight to convert energy-poor molecules such as carbon (iv), CO₂ and water (H₂O) into energy-rich organic molecules sch as carbohydrates e.g. glucose.
Photosynthesis occurs in a variety of bacteria and algae as well in vascular plants. The overall equation for the reaction of photosynthesis is as follows:
CO₂ + H₂O + light-------> (CH₂O) + O₂
It is a redox reaction in which water donates electrons (as hydrogen) for the reduction of CO₂ to carbohydrate, (CH₂O).
Carbohydrates are energy-rich molecules which serves as energy sources for many living organisms.
Help me out
On another planet, the isotopes of titanium have the given natural abundances.
Answers
The average atomic mass of titanium on the given planet is approximately 46.68164 atomic mass units (u). The average atomic mass may vary depending on the specific isotopic composition of titanium found on different celestial bodies or regions.
To calculate the average atomic mass of titanium on the given planet, we need to consider the natural abundances and masses of each isotope of titanium.
The average atomic mass is calculated by multiplying the natural abundance of each isotope by its respective mass and summing them up.
Let's perform the calculation step by step:
Step 1: Multiply the abundance of each isotope by its mass:
(73.700% * 45.95263 u) + (15.000% * 47.94795 u) + (11.300% * 49.94479 u)
Step 2: Calculate the individual contributions from each isotope:
= (0.737 * 45.95263) + (0.150 * 47.94795) + (0.113 * 49.94479)
Step 3: Add up the individual contributions:
= 33.84765431 + 7.1921925 + 5.64179347
Step 4: Sum up the contributions:
= 46.68164 u
Therefore, the average atomic mass of titanium on the given planet is approximately 46.68164 atomic mass units (u).
It's important to note that the calculation assumes the provided natural abundances are accurate and representative of the titanium isotopes on that planet.
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Is there a way i can get help on this?
Answers
First, let's see the proportion of the chemical equation:
8 moles of HNO₃ need to react with 3 moles of Cu.
You have 2.0 mol of HNO₃, so you can use the rule of 3 to find out how many moles of Cu you will need.
8 moles of HNO₃ ----- 3 moles of Cu
2 moles of HNO₃ ----- x moles of Cu
8x = 3 × 2
x = 6/8
x = 0.75 moles of Cu.
But you need to find how many grams. To find out, you need to know what the atomic mass of Cu. You can consult the periodic table to find out, the atomic mass of copper is 63.6 g/mol.
Now you need to transform moles into grams:
63.6 g of Cu ---- 1 mol of Cu
x g of Cu ---- 0.75 mol of Cu
x = 63.6 × 0.75
x = 47.7 g
Answer: It is needed 48 g of Cu to react with 2.0 mol of HNO₃.
If 6 electrons are available to fill five empty 6d atomic orbitals, how will the electrons be distributed in the five orbitals?
one electron in each orbital
two electrons in 3 orbitals and none in the other 2
two electrons in one orbital and one electron in the other four
six electrons cannot fill five empty 6d atomic orbitals
Answers
Answer:
Option C
Explanation:
According to Hund's rule
pairing of electrons occur first in lower energy orbitals then in orbitals having higher energy.d subshell has 5 orbitals.
so first these 5 get filled.The. one will be added to first one.How many liters of carbon dioxide can be produced if 37.8 grams of carbon disulfide react with excess oxygen gas at 28.85 degrees Celsius and 1.02 atmospheres?
CS2(l) + 3O2(g) yields CO2(g) + 2SO2(g)
2.78 liters
5.95 liters
12.1 liters
11.9 liters
Answers
The volume of carbon dioxide produced is approximately (d) 11.9 liters.
To determine the amount of carbon dioxide (C\(O_2\)) produced when 37.8 grams of carbon disulfide (C\(S_2\)) reacts with excess oxygen gas (\(O_2\)), we need to use stoichiometry and the given balanced chemical equation:
C\(S_2\)(l) + 3\(O_2\)(g) → C\(O_2\)(g) + 2S\(O_2\)(g)
First, we calculate the number of moles of C\(S_2\) using its molar mass:
Molar mass of (C\(S_2\)) = 12.01 g/mol (C) + 32.07 g/mol (S) × 2 = 76.14 g/mol
Number of moles of (C\(S_2\)) = mass / molar mass = 37.8 g / 76.14 g/mol ≈ 0.496 mol
From the balanced equation, we can see that the stoichiometric ratio between (C\(S_2\)) and C\(O_2\) is 1:1. Therefore, the number of moles of C\(O_2\) produced will also be 0.496 mol.
Now we can use the ideal gas law to calculate the volume of C\(O_2\) at the given temperature and pressure. The ideal gas law equation is:
PV = nRT
where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant (0.0821 L·atm/mol·K), and T is the temperature in Kelvin.
Converting the temperature from Celsius to Kelvin:
T(K) = 28.85°C + 273.15 = 302 K
Using the ideal gas law:
V = nRT / P = (0.496 mol) × (0.0821 L·atm/mol·K) × (302 K) / (1.02 atm) ≈ 11.9 L
The correct answer is 11.9 liters.
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1pt Which particle is a neutron most equal to in mass?
A. a molecule
B. an atom
O c. a proton
OD. an electron
Answers
Answer:
c. a proton
Explanation:
A neutron is most equal in mass to a proton.
A neutron is a subatomic particle without any charges on them.
A proton is a subatomic particle with a positive charge.
the mass of a proton and neutron are the most similar in an atom. the mass of a proton is 1.67 x 10⁻²⁷kgSo also is the mass of a neutronthe mass of an electron is 9.11 x 10⁻³¹kgWhat is the molar mass
MgCrO4
Answers
The molar mass of MgCrO4 is approximately 140.30 g/mol.
To determine the molar mass of MgCrO4 (magnesium chromate), we need to calculate the sum of the atomic masses of each individual element in the compound.
The chemical formula MgCrO4 indicates that the compound consists of one magnesium atom (Mg), one chromium atom (Cr), and four oxygen atoms (O).
The atomic masses of the elements can be found on the periodic table:
Magnesium (Mg) has an atomic mass of approximately 24.31 g/mol.
Chromium (Cr) has an atomic mass of around 51.99 g/mol.
Oxygen (O) has an atomic mass of about 16.00 g/mol.
Now, we can calculate the molar mass of MgCrO4 by summing up the atomic masses of each element, considering the respective subscripts:
Molar mass = (Atomic mass of Mg) + (Atomic mass of Cr) + 4 × (Atomic mass of O)
Molar mass = (24.31 g/mol) + (51.99 g/mol) + 4 × (16.00 g/mol)
Molar mass = 24.31 g/mol + 51.99 g/mol + 64.00 g/mol
Molar mass ≈ 140.30 g/mol
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