The Gibbs free energy (ΔGf°) of the sulfate ion at 298 K can be calculated based on the given data as follows.ΔGf° (SO42-) = ΣΔGf° (products) - ΣΔGf° (reactants)
Calculating Gibbs free energy:
Given the reaction: PbSO4(s) → Pb2+(aq) + SO42–(aq)
The Gibbs free energy change (ΔG°) for the above reaction can be calculated as follows. ΔG° = - RTlnKsp where R = 8.31 J/(K ∙mol)T = 298 Kand Ksp = 1.7 × 10–8 (given). Substituting the values, we get ΔG° = - (8.31 J/K ∙mol) x (298 K) x ln(1.7 × 10–8)= +52461.6 J/mol = +52.5 kJ/mol.
Now, let's use the above value of ΔG° to calculate the standard Gibbs free energy of formation (ΔGf°) of the sulfate ion.
ΔGf° (SO42-) = ΣΔGf° (products) - ΣΔGf° (reactants)ΔGf° (SO42-) = (0 kJ/mol) + (-24.4 kJ/mol) - (-813.0 kJ/mol) = 788.6 kJ/mol.
Therefore, the standard Gibbs free energy of formation of the sulfate ion at 298 K is -788.6 kJ/mol. Answer: -788.6 kJ/mol.
To know more about Gibbs free energy, visit:
https://brainly.com/question/20358734
#SPJ11
A toy car with a mass of 8 kg and velocity of 5 m/s to the right collides with a 5.28 kg car moving to the left with a velocity of 1.65 m/s. After the collision, the 8 kg car continues forward with a velocity of 0.5 m/s. What is the new velocity of the 5.28 kg car after the collision?
An archer shoots an arrow in the air, horizontally. However, after moving some
distance, the arrow falls to the ground. Name and define the initial force that sets
the arrow in motion. Explain why the arrow ultimately falls down.
Answer:
The name of the force is elastic (spring) force
Explanation:
The elastic force which is the restoration force of an elastic (spring like) object that tries to return to its initial non-stretched state built up by the pulling of the bow by the archer (using the muscles) pushes on the arrow which the archer releases the same time he leaves the bow string, and the arrow flies in the direction already pointed by the archer
The arrow ultimately falls down due to gravity forces that acts on all objects within the Earths gravitational field. However due to the speed of constant horizontal speed of the arrow and increasing downward speed of the due to the gravity force, the falling of the arrow looks disappointing.
what is ap physics 1
AP Physics 1 is a college-level introductory physics course designed to give high school students an understanding of the fundamental principles of physics.
The course covers topics such as mechanics, waves, thermodynamics, electricity, and magnetism. Students in AP Physics 1 learn to think critically and solve problems using scientific inquiry, experimentation, and analysis. The course is structured to provide students with hands-on laboratory experience and to develop their skills in using math and quantitative analysis to explain physical phenomena. At the end of the course, students take an exam that can qualify them for college credit and demonstrate their mastery of the concepts and skills covered in the course.
Learn more about physics:
brainly.com/question/28600368
#SPJ4
A horizontal pipe is completely filled with a liquid and has an output pressure greater than the input pressure. What happens to the speed of the liquid at the output
In conclusion, when a horizontal pipe is completely filled with a liquid and has an output pressure greater than the input pressure, the speed of the liquid at the output will increase due to the pressure difference created by Bernoulli's principle.
When a horizontal pipe is completely filled with a liquid and has an output pressure greater than the input pressure, the speed of the liquid at the output will increase.
This is because the increased output pressure creates a pressure difference between the input and output ends of the pipe. According to Bernoulli's principle, as the pressure difference increases, the speed of the fluid also increases.
Bernoulli's principle states that in a flowing fluid, an increase in speed is accompanied by a decrease in pressure.
So, when the output pressure is greater than the input pressure, the fluid will flow from high pressure to low pressure, resulting in an increase in speed.
To illustrate this, let's consider a simple example. Imagine you have a horizontal pipe filled with water.
If you increase the pressure at the output end of the pipe, the water will flow faster at the output because the pressure difference between the input and output ends has increased.
To know more about pressure visit:
https://brainly.com/question/29341536
#SPJ11
The equilibrium fraction of lattice sites that are vacant in silver (Ag) at 700 degrees C is 2*10^-6 ?
The equilibrium fraction of lattice sites that are vacant in silver (Ag) at 700° C is approximately \(1.17 \times 10^{-8}\) or 1.17 parts per billion (ppb).
What is equilibrium fraction?Partial separation of isotopes between two or more substances in chemical equilibrium is called equilibrium isotope fractionation.
The equilibrium fraction of lattice sites that are vacant in silver (Ag) at 700 °C can be calculated using the expression:
\($\mathrm{\frac{nv}{n} = exp\left(\frac{-Qv}{kT} \right)}\)
nv = number of vacancies
n = total number of lattice sites
Qv = energy required to create a vacancy
k = Boltzmann constant = \(1.38 \times 10^{-23}\) J/K
T = temperature in Kelvin
\($\mathrm{\frac{nv}{n} = exp\left(\frac{-Qv}{kT} \right)}\)
\($\mathrm{\frac{nv}{n} = e^{\left(\tfrac{-Qv}{kT} \right)}}\)
Qv = Ed - kT ln(Dv)
Ed = activation energy for vacancy formation
Dv = pre-exponential factor for vacancy formation
\(\mathrm{Qv = 1.03 eV - (1.38 \times 10^{-23} J/K) (973 K) \ln(3.3 \times 10^{13} s^{-1})}\)
Qv = 1.03 eV - 1.32 eV
Qv = -0.29 eV
\($\mathrm{\frac{nv}{n} = e^{\tfrac{-Qv}{kT}}}\)
nv/n = e^(-(-0.29 eV)/(1.38 × 10⁻²³ J/K × 973 K))
\($\mathrm{\frac{nv}{n} = e^{\left(\tfrac{-(-0.29eV)}{1.3\times 10^{-23}J/K \times 973 K}\right)}}\)
\($\mathrm{\frac{nv}{n} = e^{(1.81 \times 10^{13})}}\)
\(\mathrm{ \dfrac{nv}{n} = 1.17 \times 10^{-8}}\)
Therefore, the equilibrium fraction of lattice sites that are vacant in silver (Ag) at 700° C is approximately \(1.17 \times 10^{-8}\) or 1.17 parts per billion (ppb).
To know more about equilibrium fraction, refer
brainly.com/question/11183256
#SPJ4
The charges of two particles are as follows: Q1=2 x 10 -8 C and Q2 = 3 x 10 -7 C. Find the magnitude of the force between these charges if Q1 is located at (2, 5, 1) and Q2 is located at (3, 2, 3).
Answer:
F = 3.86 x 10⁻⁶ N
Explanation:
First, we will find the distance between the two particles:
\(r = \sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2+(z_{2}-z_{1})^2}\\\)
where,
r = distance between the particles = ?
(x₁, y₁, z₁) = (2, 5, 1)
(x₂, y₂, z₂) = (3, 2, 3)
Therefore,
\(r = \sqrt{(3-2)^2+(2-5)^2+(3-1)^2}\\r = 3.741\ m\\\)
Now, we will calculate the magnitude of the force between the charges by using Coulomb's Law:
\(F = \frac{kq_{1}q_{2}}{r^2}\\\)
where,
F = magnitude of force = ?
k = Coulomb's Constant = 9 x 10⁹ Nm²/C²
q₁ = magnitude of first charge = 2 x 10⁻⁸ C
q₂ = magnitude of second charge = 3 x 10⁻⁷ C
r = distance between the charges = 3.741 m
Therefore,
\(F = \frac{(9\ x\ 10^9\ Nm^2/C^2)(2\ x\ 10^{-8}\ C)(3\ x\ 10^{-7}\ C)}{(3.741\ m)^2}\\\)
F = 3.86 x 10⁻⁶ N
Why can a homeowner make a betles argument for compensation tor nowe pollufion if a local arport was built affer he moved in than if it was already there when he moved in? Would it matter whether he know if was gong io be bult?
The nuisance doctrine is a legal principle that says someone who moves into a place knowing there is a nuisance there cannot later complain about the nuisance and demand compensation for it.
When a homeowner lives close to an airport, it is widely accepted that homeowner should have been aware of the potential noise and other disruptions connected with living close to an airport if the airport was already operational when the homeowner moved in. Such circumstances may make it more difficult for a homeowner to successfully file a claim for compensation based on noise pollution or other airport-related problems.
A stronger case might be made for compensation based on increased noise pollution and other negative effects caused by the airport if a homeowner moved into the neighbourhood before the airport was established and had no knowledge of or reasonable expectation of its construction. This is due to the fact that instead of "coming to the nuisance," they encountered a change in their surroundings after already settling down.
Read more about nuisance doctrine on:
https://brainly.com/question/28658691
#SPJ4
what will happen if you increse the amplitude of a drum hit
The sound is perceived as louder if the amplitude increases, and softer if the amplitude decreases. As the amplitude of the sound wave increases, the intensity of the sound increases. Sounds with higher intensities are perceived to be louder.
What does it mean to say that mass is conserved during a physical change?
This law states that, despite chemical reactions or physical transformations, mass is conserved — that is, it cannot be created or destroyed — within an isolated system. In other words, in a chemical reaction, the mass of the products will always be equal to the mass of the reactants.
Answer:
100% oon test
Explanation:This law states that, despite chemical reactions or physical transformations, mass is conserved — that is, it cannot be created or destroyed — within an isolated system. In other words, in a chemical reaction, the mass of the products will always be equal to the mass of the reactants.
How long does it take to travel a distance of 672km at a speed of 95km/h?
Answer:
7.07 hours
Explanation:
divide the distance by the speed
so in this case, divide 672 by 95
Two tankers of equal mass attract each other with a force of 3.5 x 103 N. If their centres are 85 m apart, find the mass of each tanker.
ANSWER
6.15 · 10⁸ kg
EXPLANATION
Given:
• The force of attraction between the two tankers, F = 3.5x10³N
,• The distance between their centers of mass, r = 85m
,• The two tankers have equal masses, m₁ = m₂ = m
Known:
• The gravitational constant, G = 6.67 x 10⁻¹¹ Nm²/kg²
Unknown
• The mass of each tanker, m
By Newton's law of universal gravitation, we have that the force of attraction between two objects of masses, m₁, and m₂, separated by a distance r is,
\(F=G\cdot\frac{m_1m_2}{r^2}\)In this case, both masses are equal,
\(F=G\cdot\frac{m^2}{r^2}\)Solving for m,
\(m=r\sqrt[]{\frac{F}{G}}\)Replace with the values,
\(m=85m\cdot\sqrt[]{\frac{3.5\times10^3N}{6.67\times10^{-11}Nm^2/\operatorname{kg}}}\approx6.15\times10^8\operatorname{kg}\) What can one say about the image produced by a thin lens that produces a positive magnification?
a. It is real and inverted
b. It is real and erect.
c.It is virtual and inverted.
d. It is virtual and erect.
The answer to this question depends on the type of thin lens being discussed and the position of the object.
What is magnification?Magnification is the process of enlarging an object or image beyond its normal size. Through magnification, objects can be seen with greater clarity and detail. It is often used in microscopes, telescopes, and magnifying glasses to allow for close examination of an object or image. Magnification can also be used to change the size of an image or object for a variety of applications.
Generally speaking, a thin lens that produces a positive magnification will produce an image that is real and inverted. This means that the image will be the same size as the object but will be inverted. This is because the rays of light being refracted by the lens are converging towards the same point and thus producing an image which is behind the lens and on the same side as the object. If the object is placed on the other side of the lens, this will result in a virtual and erect image.
To know more about magnification click-
https://brainly.com/question/29306986
#SPJ4
The image produced by a thin lens that produces a positive magnification is real and inverted. So correct option is a.
What do you mean by positive magnification?Positive magnification refers to the increase in size of an image produced by an optical system, such as a microscope or telescope. A positive magnification means that the image is larger than the object being viewed. A magnification of "x10" means that the image is ten times larger than the object being viewed.
A thin lens that produces a positive magnification will produce a real and inverted image.
When a lens has a positive magnification, it means that the image is larger than the object, and the image is on the same side of the lens as the object. Since the image is real, it means that it is formed by the actual convergence of light rays, and it can be projected on a screen. And since the image is inverted, it means that it is upside-down with respect to the object.
To know more about image visit:
https://brainly.com/question/12629638
#SPJ4
early in the movie f-18 fighter jets are shown shooting many missiles at the alien spacecraft. these missiles then explode before hitting the spacecraft. captain steven hiller radios to his squadron that the ship must have some sort of protective shielding. is this scene possible? does our present state of technology have anything similar?
In our present state of technology, we don't have anything similar to the alien spacecraft's protective shielding. It's not a realistic representation of current technology.
The scene in which F-18 fighter jets shoot missiles at an alien spacecraft, only to have them explode before hitting the target, is certainly possible in a sci-fi movie.
However, The closest technology we have is electromagnetic shields used in science experiments and particle accelerators. These shields use a magnetic field to protect against charged particles, but they're not strong enough to withstand the impact of a missile.
Additionally, electromagnetic shields require a massive amount of energy, which isn't practical for use in military applications. Overall, while the scene may be entertaining in a movie,
To learn more about : spacecraft's
https://brainly.com/question/29727760
#SPJ11
t what separation is the electrostatic force between a 13.1-μc point charge and a 26.1-μc point charge equal in magnitude to 1.77 n?
The electrostatic force between a charge at 13.1 μc points and one at 26.1 μc points is called separation is r = 2.686 m.
Coulomb's law states
The characteristics of the electric force for charges in a resting condition were enumerated by Coulomb as follows: Like charges repel one another whereas opposite charges attract one another. A positive charge will therefore attract a negative charge, while two negative charges will repel one another.
that F = kq1q2r2 ...................................... Formula 1
If r is the distance between the charges, q1 is the first charge, and q2 is the second charge, F is the electrostatic force between the two charges.
Making the variable r the subject of the equation,
r = (kq1q2/F)... Example 2
Assumed: F = 1.77 N, q1 = 13.1 C = 13.106 C, and q2 = 26.1 C = 26.0 106 C
The constant is 9.0109 Nm2/C2, or k.
Equation 2 is changed by substituting r = (9.01092810657.0106/5.05),
r = (14364103/5.05), and
r = (14.364/5.05)
r = √4.844
r = 2.686 m
Learn more about electrostatic force here
https://brainly.com/question/14522660
#SPJ4
An object has an access of 50 electrons what is the charge on the object
The charge on the object is 8.01 x 10^-18 Coulombs.
Q = Ne
where Q is the charge, N is the number of excess or deficit electrons on the object, and e is the elementary charge, which is approximately 1.602 x 10^-19 Coulombs.
Q = 50 x 1.602 x 10^-19 C/electron
Q = 8.01 x 10^-18 C
A charge is a fundamental property of matter that describes the amount of electric energy that a particle possesses. It is a scalar quantity, meaning it has only magnitude and no direction. The charge can be either positive or negative and is measured in Coulombs (C).
Charged particles can interact with each other through electromagnetic force, which is one of the four fundamental forces of nature. Like charges repel each other while opposite charges attract. Electric fields are generated by charged particles, and the force they exert on other charged particles is proportional to the magnitude of their charges.
A charge is conserved in isolated systems, meaning that the total amount of charge in a closed system cannot be created or destroyed, but can only be transferred from one object to another.
To learn more about Charge visit here:
brainly.com/question/11944606
#SPJ4
why is there no change in temperature during a phase change, even if energy is absorbed by the system?
Immediately after the molecular bonds in the ice are broken the molecules are moving (vibrating) at the same average speed as before, so their average kinetic energy remains the same, and, thus, their Kelvin temperature remains the same.
Heat energy is utilized to alter the molecular bonds as a substance changes states. When something melts, additional energy is utilized to break the bonds holding the molecules together. As the molecules bind to one another during freezing, energy is removed. These energy transfers do not result in kinetic energy changes. They are modifications in the molecules' bonding energy.
"If heat is introduced into a substance during a phase change, this energy is used to dissolve the chemical bonds that hold the substance's molecules together. The molecules in the ice are moving (vibrating) at the same average speed as before as soon as the chemical bonds are broken, hence their average kinetic energy is unchanged.
Learn more about energy at:
https://brainly.com/question/25959744
#SPJ4
The largest grand piano in the world is really grand. Built in London, it has a mass of 1,152 kg. Suppose a pianist finishes playing this piano and pushes herself from the piano so that she rolls backwards with a speed of 1.5 m/s. Meanwhile, the piano rolls forward with a constant velocity of 0.06 m/s. Assuming the stool that the pianist is sitting on has a negligible mass, what is the pianist’s mass? Round to the hundredths.
ANSWER:
46.08 kg
STEP-BY-STEP EXPLANATION:
Given
m1 = 1152 kg
v1 = 0.06 m/s
v2 = -1.5 m/s
We apply law of conservation of linear momentum:
\(\begin{gathered} P_i=P_f \\ P_i=0 \\ P_f=m_1\cdot V_1+m_2\cdot V_2 \end{gathered}\)We plug in and calculate for the mass, just like this:
\(\begin{gathered} 0_{}=m_1\cdot V_1+m_2\cdot V_2 \\ 0=1152\cdot0.06+m_2\cdot-1.5 \\ -1.5m_2=-69.12 \\ m_2=\frac{-69.12}{-1.5} \\ m_2=46.08\text{ kg} \end{gathered}\)Which means that the mass of the pianist is 46.08 kg
Adaline walks 2.0 miles north to school from her house. After school, she walks 2.0 miles south from the school to her house. What is her displacement?
0 miles
1.0 miles, north
2.0 miles, south
4.0 miles, north
0 miles
Explanation:
delta displacment=position end-position beginning
The displacement of Adaline if she walks 2.0 miles north to school from her house. After school, she walks 2.0 miles south from the school to her house is zero miles so, option A is correct.
What is displacement?The overall modification of an object's location and direction of motion is referred to as displacement. Since displacement considers both the amount of the changing location and the direction of the motion, it is known as a vector quantity. There may be zero, positive, or negative displacement.
Given:
Adaline walks 2.0 miles north to school from her house. After school, she walks 2.0 miles south from the school to her house,
Calculate the displacement as shown below,
Displacement = Distance from house to school + Distance from school to house,
Displacement = 2 + (-2) (North direction is taken as positive and south direction is taken as negative)
Displacement = 0 miles
To know more about displacement:
https://brainly.com/question/11934397
#SPJ2
what is the rms value of an ac voltage that has a 480 v peak?
The RMS value of an AC voltage is the effective or average value of the voltage over time. It is calculated by dividing the peak voltage by the square root of 2. In this case, if the AC voltage has a peak of 480 V, the RMS value can be calculated as follows:
RMS Voltage = Peak Voltage / sqrt(2)
RMS Voltage = 480 V / 1.414
RMS Voltage = 339.4 V
Therefore, the RMS value of an AC voltage that has a peak of 480 V is 339.4 V. It is important to note that the RMS value is the most useful value in AC circuits as it determines the power delivered to a load.
To know more about RMS visit:
brainly.com/question/12896215
#SPJ11
Which of the following is produced as a result of photosynthesis
A. Water
B. Heat
C. Oxygen
D. Carbon dioxide
Answer:
The actual answer would be c, oxygen.
Explanation:
Plants need the energy glucose provides in order to grow and reproduce. Glucose is also required for the process of cellular respiration, in which plants convert carbon dioxide from the air into oxygen.
Which of the following statements about Australian football is TRUE?
A.
The players tend to wear a large amount of padding.
B.
Goals are scored by kicking the ball through goalposts.
C.
Each team has a number of set plays for both offense and defense.
D.
The constant movement of the ball is similar to baseball.
Answer:
B.
Goals are scored by kicking the ball through goalposts.
Explanation:
the form of coulomb's law is very similar to that for newton's law of universal gravitation. what are the differences between these two laws? compare also gravitational mass and electric charge.
Coulomb's law and Newton's law of universal gravitation are both fundamental laws of physics that describe the interactions between objects.
What iS Coulomb's Law?
Coulomb's law is a fundamental law of electrostatics that describes the interaction between electric charges. It states that the electrostatic force between two point charges is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.
The mathematical form of Coulomb's law is:
F = kq₁q₂ / r²
Although they are similar in form, there are some key differences between these laws:
Nature of the Force: The most obvious difference is that Coulomb's law describes the electrostatic force between electric charges, while Newton's law of universal gravitation describes the gravitational force between objects with mass.
Magnitude of the Force: The electrostatic force between two charged particles is generally much stronger than the gravitational force between two massive objects. This is because the electric charge has a stronger fundamental force than mass.
Type of Interaction: Electric charges can be either positive or negative, and like charges repel while opposite charges attract. In contrast, all masses attract each other through gravity, with no repulsion.
Inverse-Square Relationship: Both laws have an inverse-square relationship, which means that the force decreases with the square of the distance between the objects. However, the constant of proportionality is different for the two laws, reflecting the differences in the nature of the force.
Gravitational Mass vs Electric Charge: Gravitational mass and electric charge are two different properties of matter. Gravitational mass determines the strength of an object's gravitational attraction to other objects, while electric charge determines the strength of the object's interaction with other charged objects.
Overall, while the forms of Coulomb's law and Newton's law of universal gravitation are similar, the differences between the two laws reflect the fundamentally different nature of the forces and properties they describe.
Learn more about Coulomb's Law from given link
https://brainly.com/question/26892767
#SPJ1
on an icy day your worry about parking your car in a driveway
The overall shape of our milky way galaxy is thought to be.
what is an atom with great electronegativity able to do?
An atom with great electronegativity is able to attract electrons towards itself in a chemical bond. This means that it is able to form strong covalent bonds with other atoms, and can also participate in ionic bonding by attracting electrons away from other atoms.
Additionally, an atom with high electronegativity is able to exert a greater degree of control over the distribution of charge within a molecule, making it an important factor in determining the overall reactivity and behavior of the molecule.
Electronegativity is a measure of an atom's ability to attract electrons towards itself when it is part of a chemical bond. In other words, it is a measure of an atom's ability to pull electrons away from other atoms in a molecule. Electronegativity is an important concept in chemistry, as it helps predict how atoms will behave in chemical reactions.
Electronegativity is typically measured on a scale called the Pauling scale, named after the American chemist Linus Pauling. The scale ranges from 0.7 (for the least electronegative element, francium) to 4.0 (for the most electronegative element, fluorine). Elements towards the right side of the periodic table, such as the halogens and oxygen, are generally more electronegative than elements towards the left side, such as the alkali metals.
Visit here to learn more about atom brainly.com/question/1566330
#SPJ11
A 97.3 kg horizontal circular platform rotates freely with no friction about its center at an initial angular velocity of 1.67 rad/s . A monkey drops a 9.67 kg bunch of bananas vertically onto the platform. They hit the platform at 45 of its radius from the center, adhere to it there, and continue to rotate with it. Then the monkey, with a mass of 21.9 kg , drops vertically to the edge of the platform, grasps it, and continues to rotate with the platform. Find the angular velocity of the platform with its load. Model the platform as a disk of radius 1.73 m
Answer:
w = 1.14 rad / s
Explanation:
This is an angular momentum exercise. Let's define a system formed by the three bodies, the platform, the bananas and the monkey, in such a way that the torques during the collision have been internal and the angular momentum is preserved.
Initial instant. The platform alone
L₀ = I w₀
Final moment. When the bananas are on the shelf
we approximate the bananas as a point load and the distance is indicated
x = 0.45m
L_f = (m x² + I ) w₁
angular momentum is conserved
L₀ = L_f
I w₀ = (m x² + I) w₁
w₁ = \(\frac{I}{m x^2 + I} \ w_o\)
Let's repeat for the platform with the bananas and the monkey is the one that falls for x₂ = 1.73 m
initial instant. The platform and bananas alone
L₀ = I₁ w₁
I₁ = (m x² + I)
final instant. After the crash
L_f = I w
L_f = (I₁ + M x₂²) w
the moment is preserved
L₀ = L_f
(m x² + I) w₁ = ((m x² + I) + M x₂²) w
(m x² + I) w₁ = (I + m x² + M x₂²) w
we substitute
w = \(\frac{m x^2 +I}{I + m x^2 + M x_2^2} \ \frac{I}{m x^2 + I} \ w_o\)
w = \(\frac{I}{I + m x^2 + M x_2^2} \ w_o\)
the moment of inertia of a circular disk is
I = ½ m_p x₂²
we substitute
w = \(\frac{ \frac{1}{2} m_p x_2^2 }{ \frac{1}{2} m_p x_2^2 + M x_2^2 + m x^2} \ \ w_o\)
let's calculate
w =\(\frac{ \frac{1}{2} \ 97.3 \ 1.73^2 }{ \frac{1}{2} \ 97.3 \ 1.73^2 + 21.9 \ 1.73^2 + 9.67 \ 0.45^2 } \ \ 1.67\)
w = \(\frac{145.60 }{145.60 \ + 65.54 \ + 1.958} \ \ 1.67\)
w = 1.14 rad / s
Put the surfaces in order from LEAST friction to MOST friction.
Gravel
Carpet
Skating Rink
Answer
Least Friction
Skating Rink
Carpet
Gravel
Most Friction
What is a standard drink measurement
The standard drink measurement should contain 14 grams of pure alcohol in United States of America.
What is standard drink measurement?Standard drink measurement can be defined as the measurement of alcohol that is expected by an individual to consume daily without having a bad health effect.
In the United States of America, an amount of 14 grams of pure alcohol which can be found in 12 ounces of beer is regarded as normal.
Learn more about alcohol here:
https://brainly.com/question/26443214
#SPJ1
What is the wave in abrass wire with a radius of 0.500 mm stretched with a tension of125 N? The density of brass is 8.60 × 10^3kg/m^3.
The speed of the wave in the brass wire is 103.6 m/s.
The speed of a wave on a stretched wire is given by the formula:
v = √(T/μ)
μ = (π/4) * r² * ρ
where r is the radius of the wire and ρ is the density of the wire.
Plugging in the values, we get:
μ = (π/4) * (0.0005)² * 8.60 × 10³
= 0.002677 kg/m
Using the formula for wave speed, we can now calculate the speed of the wave:
v = √(T/μ)
= √(125/0.002677)
= 103.6 m/s
Speed is a fundamental concept in physics that describes the rate at which an object moves or travels. It is defined as the distance traveled by an object divided by the time it takes to cover that distance. Speed can be expressed in different units, such as meters per second, kilometers per hour, miles per hour, or feet per second, depending on the context.
Speed is closely related to other concepts such as velocity, acceleration, and momentum. Velocity is the speed of an object in a specific direction, while acceleration is the rate of change of velocity over time. Momentum, on the other hand, is the product of an object's mass and velocity and is a measure of how difficult it is to stop the object's motion.
To learn more about Speed visit here:
brainly.com/question/28224010
#SPJ4
4. Coloca las partes en orden para formar una frase.
Se – La – se – transforma – sólo – no – ni – destruye – energía – crea – se
La energía no se crea ni se destruye solo se transforma
Explanation:
espero y te ayude