Ceres has a radius of 476 kilometers, which is 1/13 the radius of Earth. If the Earth were the size of a nickel, Ceres would be the size of a poppy.
What is CeresCeres is the dwarf planet in the inner solar system. Ceres is a rock-and-ice object with a diameter of 950 km and is the smallest dwarf planet ever discovered. Ceres' mass is one-third the mass of the asteroid belt between the orbits of Mars and Jupiter. Ceres was discovered by the Italian astronomer Giuseppe Piazzi on January 1, 1801 and was classified as an asteroid at the time, but it was the first asteroid discovered.
As a planet, On August 24, 2006, the International Astronomical Union (IAU) decided to change Ceres to a "dwarf planet" along with Pluto, Sedna, and Makemake in the Kuiper belt.
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How do you solve torque problems?.
rFsin() is the term of torque. In other ways, twist is the sum of the (the distance between the pivot and the tip at which force is applied) or the force vector, where 'a' is the angle of r and F.al lever arms).
What is the torque solution formula?Result for an image How are torque issues solved?
The formula for torque is rF=rFsin(r). Torque is, in other words, the cross product of the shortest path (the length between the pivot point and the point at which load is exerted) and the pressure vector, where 'a' is the angle of r and F.
How are problems involving net torque solved?Approach to Solving the Issue: Identifying Net Torque
To establish whether the torque is positively or negatively about pivot point or axis, take the xor operation of r and F. Utilizing rF, calculate the torque's magnitude. Identify the proper.
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tony made a list of all fruits that have only one seed and recorded their shape and size. what can he find out from the list
Information that Tony can find out from the list of fruits with only one seed and shape of the seed include:
Patterns in fruit shapePatterns in fruit sizeRelationships between shape and sizeWhat can Tony find out ?Tony may be able to notice patterns in the shape of the fruits on his list. For example, he may notice that most of the fruits on the list are round or oval in shape. Tony may be able to notice patterns in the size of the fruits on his list. For example, he may notice that most of the fruits on the list are small or medium-sized.
Tony may be able to notice relationships between the shape and size of the fruits on his list. For example, he may notice that round or oval-shaped fruits tend to be smaller than those that are elongated or irregular in shape.
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an elevator is moving from up in a building. as it nears the 6th floor it slows down at a rate of 0.10m/s. a 75 kg man is standing on a scale inside the elevator. what is the scale reading?
a pulse has a speed of 0,5m,s .how long does it take to cover a distance of 25cm?
To calculate how long it takes for a pulse to cover a distance of 25cm, we can use the formula:
time = distance / speed
In this case, the distance is 25cm and the speed is 0.5m/s, so we can plug in these values:
time = 25cm / (0.5m/s)
To convert cm to m we divide the distance by 100.
time = 25 / 100 m / 0.5m/s
time = 0.25s
So it takes 0.25 seconds for the pulse to cover a distance of 25cm, when the speed of the pulse is 0.5m/s.
A proton, a deuteron (a hydrogen nucleus containing one proton and one neutron), and an alpha particle (a helium nucleus consisting of two protons and two neutrons) initially at rest are all accelerated through the same distance in the uniform electric field created by a very large charged plate.
Alpha particles have twice the momentum of deuterium and have a magnitude of 4. The momentum of a proton is magnitude 1.4.
A proton carries a single positive charge q (a proton is positive), a deuterium carries 2q (two protons) and an alpha particle also he carries 2q (two protons). A proton has a unit mass of m, a deuterium is 2m (containing 1 proton and 1 neutron), and an alpha particle is 4m (containing 2 protons and 2 neutrons). The electric force on a particle of charge q moving through a plate of charge Q is
[tex]F_e[/tex] = [tex]\frac{KQq}{r^2}[/tex]
K is a constant and r is its separation distance.
yes,
For proton [tex]F_e[/tex] = [tex]\frac{KQq}{r^2}[/tex]
For deuterium[tex]F_e[/tex] = [tex]\frac{KQq}{r^2}[/tex]
for the alpha part. [tex]F_e[/tex] = 2 [tex]\frac{KQq}{r^2}[/tex]
When a particle moves through an electric field, the kinetic energy of the particle is described according to energy conservation.
Work done = [tex]F_e[/tex] × r (force x displacement) = 0.5 [tex]mv^2[/tex](half mass x its velocity squared).
For proton KE = [tex]\frac{KQq}{r}[/tex]
Deuterium KE = [tex]\frac{KQq}{r}[/tex]
alpha part. KE = 2 [tex]\frac{KQq}{r}[/tex]
That is, the proton's kinetic energy is equal to that of deuterium, which is half the kinetic energy of the alpha part. The kinetic energy of particles is equal to the word expended by these particles as they move through the field, so KE = W
For proton [tex]\frac{KQq}{r}[/tex]= 0.5 [tex]mv^2[/tex]
V = [tex]\sqrt{2\frac{KQq}{mr}}[/tex]
Let's put in the square root of[tex]\frac{KQq}{mr}[/tex] = b
Therefore V = [tex]2^{0.5}[/tex] × w = 1.4b
Deuterium and alpha moieties velocities using the same transpose and method. Each.
V=b.
and
V = b
This means that the proton velocity is 1.4 times that of deuterium and the velocity of the alpha part.
For the momentum part, remember that momentum is the product of mass and velocity mv.
proton momentum = m × 1.41b
= 1.41MB
for deuterium = 2m × b
= 2MB
for the alpha part. = 4m*b
= 4MB
Alpha particles have twice the momentum of deuterium and have a magnitude of 4. The momentum of a proton is magnitude 1.4. From the velocity magnitudes above, we can see that the alpha portion and deuterium take the same amount of time. Protons take 1.4 times less time than deuterium and alpha moieties.
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A proton, a deuteron (a hydrogen nucleus containing one proton and one neutron), and an alpha particle (a helium nucleus consisting of two protons and two neutrons) initially at rest are all accelerated through the same distance in the uniform electric field created by a very large charged plate. Compare their final (a) kinetic energies, (b) momentum magnitudes, (c) speeds, and (d) time intervals needed to cover the distance. (e) How do the changes in electric potential energy compare?
What is the angle between the vectors 3j K and i 2j +- 4k?.
The angle between the vectors A and B is arccos(0.65) is equal to 44.26 degrees.
To find the angle between two vectors, you can use the dot product formula:
cos(theta) = (A . B) / (||A|| * ||B||)
Where A and B are the two vectors, (A . B) is the dot product of the vectors, and ||A|| and ||B|| are the magnitudes of the vectors.
In this case, the vectors are A = 3j k and B = i + 2j - 4k
(A . B) = (3j k) . (i + 2j - 4k) = 31 + 0 + 0(-4) = 3
||A|| = sqrt(0^2 + 3^2 + 1^2) = sqrt(9) = 3
||B|| = sqrt(1^2 + 2^2 + (-4)^2) = sqrt(1+4+16) = sqrt(21) = 4.58
Finally, we can use the dot product formula to find the angle:
cos(theta) = (A . B) / (||A|| * ||B||) = 3 / (3*4.58) = 0.65
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A truck i traveling outh at a peed of 70 km/h toward an interection. A car i traveling eat toward the interection at a peed of 80 km/h. What i the velocity of the car relative to the truck?
The velocity of the car relative to the truck is 106 km/h.
The concept of reference frames was first introduced to discuss relative motion in one or more dimensions. When we say an object has a certain velocity, then this velocity is with respect to some frame that is known as the reference frame. In everyday life, when we measure the velocity of an object, the reference frame is taken to be the ground or the earth.The velocity of the car with respect to Earth is [tex]V_{CE}[/tex] = 80 km/h
The velocity of the truck with respect to Earth is [tex]V_{TE}[/tex] = −70 km/h
Using the velocity addition rule, the relative motion equation we are seeking is:
[tex]V_{CT} = V_{CE}+ V_{TE}[/tex]
Here, [tex]V_{CT}[/tex] is the velocity of the car with respect to the truck, and Earth is the connecting reference frame.
Since we have the velocity of the truck with respect to Earth, the negative of this vector is the velocity of Earth with respect to the truck:
[tex]V_{ET} = -V_{TE}[/tex]
The vector diagram of this equation is shown in figure.
We can now solve for the velocity of the car with respect to the truck:
[tex]V_{CT} = \sqrt{80^{2} + 70^{2} } = 106 km/h[/tex]
So the velocity of the car relative to the truck is 106 km/h.
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What is the best energy source for the environment?.
Wind power is the best energy source for the environment.
What are advantages of wind energy?One of the greenest and most sustainable ways to produce electricity is by using wind power because it emits no greenhouse gases or hazardous pollution. In addition to being abundant, limitless, and inexpensive, wind energy can replace fossil fuels on a large scale. One of the easiest to get renewable energy sources today is solar energy.
It harnesses the power of the sun and transforms it into electricity. Solar energy is being used by many companies and even homes, not just to lessen their environmental impact but also to drastically lower their power costs. Nuclear fission is the technique used to create nuclear energy. This is another another popular and effective energy source.
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Does latency affect performance?.
Yes, latency affect performance.
Latency affect performance, especially in applications that require real-time communication or control. Latency refers to the amount of time it takes for a data packet to travel from its source to its destination, and it is typically measured in milliseconds (ms). High latency can result in delays, which can lead to slower response times, decreased throughput and lower quality of service.
In applications such as online gaming, financial trading, virtual reality, video conferencing and autonomous vehicles, high latency can lead to a poor user experience, as the actions of the user are not reflected quickly on the screen. It can also lead to errors and inaccuracies in the execution of trades or the operation of self-driving cars.
In other applications such as streaming services or website, high latency can result in buffering, interruptions, and poor video quality which can lead to a poor user experience.
In summary, latency can have a significant impact on performance, especially in applications that require real-time communication or control, and it is important to keep latency as low as possible to ensure good performance and a good user experience.
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Does mass depend on the number of atoms?.
Mass of an object depends on the number of atoms on an object.
The mass of an object is directly proportional to the number of atoms it contains, and the mass of each atom is determined by its atomic number, which is the number of protons in its nucleus.
The total mass of an object is the sum of the masses of all its atoms. For example, a piece of copper with twice the number of atoms as another piece of copper, will have double the mass. This is also true for molecules, the mass of a molecule is the sum of the mass of its individual atoms.
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Why is latency more important than speed?.
Latency is the less delay during the journey of an object that's why it is more important than the speed.
If one have to cover a distance of 300 km, then he/she will chose a car of maximum speed 100 kmph, over the car of speed 50 kmph. Because car with more speed will make him/her able to reach the destination in 3 hours whereas the car with slower speed will take 6 hours. But if consider the factor of latency, that is the less delay in the path, than slower car can beats the faster car if it experiences the less delay or latency. There are various reason of delay, like traffic, congestion of the way bad condition of road, operational time of car, etc. If faster car go with a ling, and congested route with traffic whereas slower car go with the smooth route, then slower car can and does beat the faster car. That's why latency is more important than speed.
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Match each variable to the unit associated with it.
The units of the derived quantities are matched as;
P → wattsW → Joulesη → %IMA → no unitsWhat is derived units?
Derived units are units of measurement derived from the seven base units specified by the International System of Units (SI).
The following are some derived quantities and their corresponding derived units.
Power, P, is measured in wattsWork, W, is measured in JoulesEfficiency, η, is measured in percentage ( % ) Ideal mechanical advantage ( IMA ), is dimensionless because it is the ratio of output force to input force. So it will have no units.Learn more about derived units here: https://brainly.com/question/5114086
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Can parallel forces be added together?.
Answer:
To find the magnitude of two or more parallel forces, simply add them together. Then, to find location of the resultant, you need to first multiply each force by the distance to where it is applied.
Explanation:
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How do you calculate 9. 8 m s2?.
9.8 m/s² is the value of acceleration due to gravity of the earth. It is a vector quantity.
Acceleration due to gravity of the earth is mathematically defined as
g = GM/R²......(1)
Where G is the universal gravitational constant, M is the mass of the earth, and R is the radius of the earth or the distance of the object on which the acceleration due to gravity of the earth is to calculate.
We know the mass of the earth, M = 5.972 × 10²⁴ kg
Radius of the earth, R = 6.4 × 10⁶ m
Value of G, = 6.67 × 10⁻¹¹ N-m²/kg²
So, g = (6.67 × 10⁻¹¹ × 5.972 × 10²⁴)/(6.37 × 10⁶)²
g = 9.8 m/s²
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How do you use weight formulas?.
What is the formula of work and dimensional formula?.
Work is the product of force vector and displacement vector. Its formula is W = F × d × sinθ and Its dimension formula is [ML²T⁻²].
Work is the product of force vector(F) and displacement vector(d), but work is a scalar quantity in itself. It does not have direction, it only has magnitude. Work is said to be done when the object gets displaced in the direction of the force applied. Its SI unit is Joule, which is equal to kg-m²/s².
W = F × d × sinθ
Where θ is the direction of force with respect to the displacement.
Its dimension would be, T = [MLT⁻²] × [L] = [ML²T⁻²]
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Please help. Step-by-step explanation would be appreciated
At 170 degrees A vector's orientation, or the angle it forms with the x-axis, determines its vector's direction.
How do you determine a vector's direction?A vector's direction is determined by the angle it forms with a horizontal line. tan=y2 y1x2 x1, where (x1,y1) and (x2,y2) are the initial and terminal points, respectively.
What is the secret to getting things done?Use the formula = arctan(y/x) to determine the direction of the vector v = (x, y), where is the smallest angle the vector makes with the horizontal axis and x and y are its component vectors.
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What is the process called when the molecules of a substance are retained at the surface of a solid or a liquid absorption adsorption sorption desorption?.
Adsorption is a process that involves the aggregation of a substance's molecules in higher concentration on a solid or liquid's surface. For instance, the surface of charcoal absorbs gases.
Adsorption describes the process by which molecules are attracted to the external or internal (capillary walls or crevices) surfaces of solids or liquids, respectively.
In general, whereas sorption is a less confined process that can either be adsorption or absorption, adsorption is a surface process that results in the transfer of a molecule from a solution bulk to a solid surface. Sorption is the phenomena of fixing or capturing a gas or vapour by a material in a condensed condition known as sorbent.
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How many gametes will be affected if nondisjunction happens?.
Four gametes will be affected if nondisjunction takes place. A new, unique progeny is produced during sexual reproduction when the sex cells known as gametes—eggs in females and sperm in males—combine.
After fertilization, children born to gametes with abnormal chromosomal numbers due to nondisjunction will also have abnormal chromosomal numbers. If nondisjunction takes place during Meiosis I in humans, two gametes without a chromosome and two gametes with extra chromosomes (24 each, or n+1) will be produced (22 chromosomes each, n-1 ). There may be one missing chromosome or up to n+1 chromosomes in each gamete (one extra). I've included a link to an animation that shows meiosis and non-disjunction in action.
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How can we calculate force?.
Which of these minerals could be used to make glass windows?A. calciteB. gypsumC. quartzD. hematiteE. clay minerals
Quartz is the most common type of mineral used to make glass windows. It is a hard, transparent mineral that can be melted and cooled to form glass.
Which minerals use to make glass windows?Typical minerals used in the production of glass windows include quartz, feldspar, dolomite, and sodium carbonate. Quartz is a mineral form of silicon dioxide and is the main component of glass windows.
Feldspar is a group of minerals that provide strength and rigidity to the window glass. Dolomite is a magnesium-rich mineral which adds clarity and brilliance to glass. Sodium carbonate is an alkaline mineral which helps reduce the amount of energy required to manufacture glass.
Other materials used to make glass windows are calcium oxide, boron oxide, and lead oxide. Calcium oxide helps to reduce the amount of heat conductivity through the glass window.
Boron oxide helps to increase the strength of the glass and reduce the amount of thermal expansion. Lead oxide is added to give the glass a higher refractive index and to enable the glass to be shaped into curved or other intricate designs.
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How to complete fig 6.1
Virtual images are formed by placing an object between focus and pole of the lens.
Can concave, convex, and flat mirrors create virtual images?Virtual images can be produced using mirrors with concave, convex, and plane surfaces. You cannot perceive virtual images when looking in a mirror since they are not physically present. Virtual images are generated when the light rays being reflected diverge.
It is possible to project virtual visuals onto a piece of paper. Convex and flat mirrors can also be used to create real images. If the object is virtual, meaning light rays converge at a point behind a flat mirror (or a convex mirror) and reflect to a point on a screen positioned in front of the mirror, a true image will be produced.
The image a convex lens creates depends on how far an object is from it and whether it is real or virtual.
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What is the weight of a 1 kg mass on Earth g 9. 8 m s2 class 9?.
The weight of a 1 kg mass on Earth g 9.8 m/s² is 9.8 N.
What is weight?Weight is the name for the gravitational force that pulls objects towards the centre of the Earth. Gravity plays a role in the subsequent force that draws a mass to the planet. Thus, this force only exists between Earth and a mass, as opposed to gravitational force, which exists between any two masses.
The gravitational pull exerted by two objects when they are close to one another is determined by their individual masses and the inverse square of their individual distances. When two objects are farther apart, the forces between larger objects are stronger and the attraction between smaller objects is weaker. Newton's single weight equation can explain the relationship.
We know that force
F = ma
F = force
m = mass of an object
a = acceleration
Here,
a = g = 9.8 m/s²
m = 1 kg
Then
Force, F = 1 × 9.8
= 9.8 N
Thus, the weight of a 1 kg mass on Earth g 9.8 m/s² is 9.8 N.
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Particles q1 = -66.3 UC, q2 = +108 uC, and 93 = -43.2 uC are in a line. Particles q1 and q2 are separated by 0.550 m and particles q2 and q3 are separated by 0.550 m. What is the net force on particle q2?
The sum total of all forces which are acting on an object is known as the net force. A mass can accelerate due to the net force.
What is net force?The net force can be defined as the sum total of all the forces which are acting on an object. Net force can accelerate a mass. Some other force also act on an object either at rest or motion.
Here, r₁₂ = 0.550m r₂₃ = 0.550m. Then the distance from the first charge to the third one will be:
r₁₃ = r₁₂ + r₂₃ = 0.550 + 0.550 = 1.1m
According to the Coulomb's law, the net force on particle q₂ will be equal to the sum of the forces on particle q₂ from the particle q₁ and q₃.
F₃+ = F₁₃ +F₂₃ = q₁q₂/r²₁₃ + k q₃q₂/r²₂₃
Where, k = 9 × 10⁹ N m²/C²
Substituting numerical values, we obtain:
F₃ = 9 × 10⁹ (-66.3 × 10⁻⁶)(-43.2 × 9 × 10⁻⁶)/ 1.45² + 9 × 10⁹ × 108 × 10⁻⁶ (-43.2 × 10⁻⁶) / 0.550²
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Are moles and molecules the same?.
Thus, a mole is an amount of 6.02210^23 particles, whereas a molecule has several atoms of different elements that are chemically connected to one another.
We use a unit called a mole to scale up from the molecular level to the laboratory level. A mole of a substance is the same number of molecules of that substance as there are carbon-12 atoms in precisely 12 g of the element. Chemists employ the mole, a very significant unit of measurement.
Like a dozen eggs means twelve eggs, having a mole of anything indicates you have 602,214,076,000,000,000,000,000 (equals to 6.02210^23) of that thing. For extremely small objects like atoms, molecules, or other particles, chemists must quantify using moles.
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At which position does the child on the swing have the most kinetic energy?
The greatest kinetic energy of the boy is at position C
Where is the most kinetic energy?We have to note that the kinetic energy is the energy that is possessed by the object that is in motion. We know that there are two forms of the mechanical energy and these are the kinetic energy and the potential energy and this is due to to the position of the object.
We know that at the point where the child returns to the point of the starting there would be a maximum kinetic energy and this is at position C.
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the maximum number of electrons that can occupy the third principal energy level is_________.
a) 18
b)32
c)2
d)8
The maximum number of electrons that can occupy the third principal energy level is 18.
The number of orbitals associated with an energy level determines the maximum number of electrons that can exist at that level. Each orbital may accommodate a maximum of two electrons. Those electrons in an atom's highest energy level, known as the valence level, are the ones that give the atom its name. They are responsible for determining many of an atom's attributes, notably its level of reactivity.
Bohr and Bury came up with the formula 2n² to figure out the maximum number of electrons that can be accommodated in an orbit. This number may be found by using the formula.
In this case, we are given that the number of orbit (n) is 3.
Hence, the maximum number of electrons:
2n² = 2 × 3² = 18
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The air in an inflated balloon (defined as the system) is warmed over a toaster and absorbs 130 j of heat. As it expands, it does 79 kj of work.
The system's internal energy change is -77.87 kJ.
Energy cannot be created or destroyed; instead, it can only be transformed from one form to another, according to the first law of thermodynamics.
Knowing that;
ΔE = q + w
internal energy, or E.
q = heat added/taken away
w = the system's or its own work
The system absorbed heat because it was already heated, so q is positive. It worked because the gas expanded, so w is negative.
Hence;
ΔE = 130 J- 78 × 10^3 J
ΔE = -77.87 kJ
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The air in an inflated balloon (defined as the system) is warmed over a toaster and absorbs 130 J of heat. As it expands, it does 78 kJ of work .What is the change in internal energy for the system?
What risks were taken by general macarthur, the commander of the united nations forces, when he ordered the invasion at inchon?.
The Inchon invasion put a strain on the resources of the UN forces, as they had to commit significant amounts of manpower and material to the battle.
What is the amounts ?The amount is the total number or quantity of something. It can refer to a physical unit that is being measured, such as a volume or distance, or it can refer to a monetary value. In terms of money, it is the numerical value of a financial transaction. It is also used to refer to the sum or total of certain elements in a set or collection, such as the count of a certain type of item.
1. Risk of Failure: The Inchon invasion was a risky endeavor, as it relied on a daring and unorthodox maneuver. It was a high-stakes gamble with the possibility of failure that could have had disastrous consequences for the United Nations forces.
2. Risk of Casualties: Any military operation carries with it the risk of casualties. The Inchon invasion was no exception, with the potential for heavy casualties among the UN forces.
3. Risk of Surprise: The Inchon invasion was a surprise attack, and it was possible that the North Korean forces could have been prepared and ready to repel the invasion.
4. Risk of Overstretched Resources: The Inchon invasion put a strain on the resources of the UN forces, as they had to commit significant amounts of manpower and material to the battle. This could have led to an overextension of resources and left the UN forces vulnerable elsewhere.
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Three force are acting on the ring a hown in the figure. What i the magnitude and direction of the net force acting on the ring?
Three forces work in the ring as shown. then the resultant total force = 120 N with the direction of force = 82° from the X axis (in quadrant 1, near F3)
To determine the magnitude and direction of the resultant force from the three forces acting on an object in a two-dimensional plane as shown in the figure, first determine the magnitude of the three forces concerning the X and Y axes.
F1 = 128 N, F2 = 128 N, F3 = 64 N
x component
F1x = -128 cos (90) = -128 (0) = 0
F2x = 128 cos (60) = 128 (1/2) = 64
F3x = 64 cos (30) = 64 (1/2√3) = 55.4
Fx = F1x+ F2x+F3x = 0 + 64 + 55.4 = 119.4
y component
F1y = -128 sin (90) = -128 (1) = -128
F2y =128 sin (60) = 128 (1/2√3) = 110
F3y = 64 sin (30) = 64 (1/2) = 32
Fy = F1y + F2y + F3y = -128 + 110 + 32 + = 15
Force Results
Resultant = [tex]\sqrt{Fx^2 +Fy^2}[/tex]
Resultant = [tex]\sqrt{119.4^2+15^2}[/tex]
Resultant = [tex]\sqrt{14261 + 225}[/tex]
Resultant = [tex]\sqrt{ 14486}[/tex]
Resultant = 120 N
Force Direction:
θ = tan⁻¹ (Fx/Fy)
θ = tan⁻¹ (119,4/15)
θ = tan⁻¹ (7,96)
θ = 82°
So, the resultant total force is 120 N with the direction of force is 82° from the X axis (in quadrant 1, close to F3)
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