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 sum total of all the forces which are acting on an object is known as the net force. A mass that can accelerate due to net force on an object. Whether a body is at rest or in motion, it is a subject to another force. When there are a lot of forces which are acting on a system, the term net force is used to denote it.
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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PLEASE HELP RN
A projectile is shot horizontally off a cliff at a speed of 44 m/s. It hits the ground 2 seconds
later.
How high is the cliff, in meters?
Distance from the base to cliff does it land is 41.4m,
What is distance?Distance is a measurement of how far away two things or locations are, either numerically or occasionally qualitatively. Distance can refer to a physical length in physics or to an estimate based on other factors in common use.Distance is the sum of an object's movements, regardless of direction. Distance may be defined as the amount of space an item has covered, regardless of its beginning or finishing position.A span is any distance between two objects. These end points may be concrete, like the length of a rope between two trees, or they could be more ambiguous, like the interval between five and six o'clock in the morning.Given data :
Let’s review the 4 basic kinematic equations of motion for constant acceleration (suggest you commit these to memory):
s = ut + ½at^2 …. (1)
v^2 = u^2 + 2as …. (2)
v = u + at …. (3)
s = (u + v)t/2 …. (4)
where s is distance, u is initial velocity, v is final velocity, a is acceleration and t is time.
First, we find the time taken by the projectile to drop 84m. From equation (1):
84 = 0 + 0.5(9.81)(t^2) so t = √(84/4.905) = 4.14s
Next, we find the distance travelled in 4.14s at 10m/s, which is:
Distance = 4.14*10 = 41.4m
Completed question :
A projectile is thrown horizontally off of a 84 m high cliff at 10 m/s. How far away from the base of the cliff does it land?
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Why will an object in motion continue at a contant peed and in a contant direction
An object in motion continues to move at a constant speed and in a constant direction because there is no outside force acting upon it to change its speed and direction.
According to the first law of Newton, an object remains at rest or moves at a constant speed in a constant direction unless it is acted on by an unbalanced force or outside force.
Newton's first law of motion signifies that an object in motion is continued to be moving at a constant speed and in a constant direction.; only an outside force can change the speed and direction of the object. According to this law, if an object is at rest, it remains at rest, unless an outside force is applied on it.
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What process is used to move molecules across a cell membrane to space where the concentration of the molecules is higher?.
Diffusion is utilised to move molecules across cell membranes and into regions with higher concentrations. Every cell has a cell membrane, which is only partially permeable.
Molecules can enter and depart cells by active transport and diffusion, respectively. Water can move into or out of cells via osmosis. When chemicals pass via certain transport proteins and diffuse across the cell membrane, this happens. In probability theory and statistics, a class of continuous-time Markov processes known as diffusion processes is one that almost surely has continuous sample routes. Diffusion is utilised to move molecules across cell membranes and into regions with higher concentrations. Every cell has a cell membrane, which is only partially permeable. Brownian motion, Ornstein-Uhlenbeck processes, and reflected Brownian motion are a few examples of diffusion processes.
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Self-ignition would occur in the engine uing certain brand of petrol if the temperature due to
compreion reached 350°C. Calculate the highet ratio of compreion that may be ued to avoid pre-ignition if the law of
compreion i
Self-ignition, also known as pre-ignition, occurs in an internal combustion engine when the fuel-air mixture in the combustion chamber ignites before the spark plug fires.
One way to avoid pre-ignition is to limit the compression ratio of the engine, as a higher compression ratio can lead to higher temperatures in the combustion chamber.
The ideal gas law states that PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the temperature.
The compression ratio of an engine is the ratio of the volume of the combustion chamber when the piston is at the bottom of its stroke (the "swept volume") to the volume of the combustion chamber when the piston is at the top of its stroke (the "clearance volume").
Given that the temperature at which self-ignition would occur using a certain brand of petrol is 350°C, and assuming that the ideal gas law applies, we can calculate the highest compression ratio that may be used to avoid pre-ignition.
To do this, we need to know the initial temperature and pressure in the combustion chamber, as well as the final temperature and pressure after compression. We can then use the ideal gas law to calculate the compression ratio.
In conclusion, based on the information provided, it is possible to calculate the highest compression ratio that may be used to avoid pre-ignition in an engine using the ideal gas law. However, more specific information such as the initial temperature and pressure and the specific brand of petrol is needed for a more accurate calculation.
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What is the rate of change formula excel?.
A rate of change is a rate that describes how one quantity changes in respect to another. rate of change=change in y change in x=change in distance change in time.
How do you explain pace of change?The rate of change (ROC) describes how rapidly something changes over time. It is hence the pace of change (rather than the amount of individual changes) that is important. In finance, rate of change is used to assess price returns and identify momentum in trends.
A line's rate of change is the slope, the increase over run, or the change in over the change in. The slope may be determined using two points in a table or the slope triangle in a .
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7. From the choices below, select ALL that are results of radioactive decay.
-the nuclear ejection of electrons
-nuclear fission
-radiation emission
-the nuclear capture of electrons
-nuclear fusion
help needed fast, I'm not good at physics, look at picture below ( I posted another page aswell, take a look on my profile) part #2
Answer:
I’d say the air outside the hemisphere is more free than from the inside of the hemisphere.
Explanation:
hope this help!
A motor boat traveling 5 m/s, East encounters a current traveling 2.5 m/s, North.
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BobbieRan
Expert
1.5K answers
26.1K people helped
Answer
The relative velocity of the motor boat =5.59 m/s in 26.5° East south direction.
Time for the boat to travel shore-shore = 16. sec
The distance traveled downstream is 40 m.
The Scenario Depicts about the Calculations of Relative Velocity
What is Relative Velocity?
When two objects A and B are thought of as moving at velocities Va and Vb relative to a shared fixed frame of reference, such as the ground, a bridge, or a fixed platform
The velocity of an object in relation to another observer is known as its relative velocity. It is the pace at which one object's relative location changes in relation to another object over time
V → = V A B → + V B C → Where. VAB is the velocity with respect to A and B, VBC is the velocity with respect to B and C and VAC is the velocity with respect to A and C.
Given,
A motorboat traveling 5 m/s, East.
encounters a current traveling 2.5 m/s, South.
the resultant velocity of the motor boat = =5.59 m/s in 26.5° East south direction
time does it take the boat to travel shore to shore = 80/ 5
= 16. sec.
The distance traveled downstream is d = v • t = (2.5 m/s) • (16 s) = 40 m.
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Describe how a person would use a drinking straw to draw liquids
A drinking straw can be used to draw liquids by following these steps:
Take the drinking straw and place one end into the liquid you wish to drink.
Hold the other end of the straw with your mouth, making sure that your lips create a tight seal around the end of the straw.
Using your mouth, suck the air out of the straw. This action creates a vacuum in the straw which in turn pulls liquid up through the straw and into your mouth.
It's important to note that the drinking straw should be inserted into the liquid to a depth that keeps the liquid level above the end in your mouth to avoid sucking in air bubbles.
Two charged objects are held 1 meter apart from each other. Then they are moved to 4 meters apart. How are the electrostatic force and gravitational force between them affected by this move?.
The electrostatic force and gravitational force will be one-sixteenth.
Gravitational force: The force of attraction between any two bodies is
directly proportional to the product of their masses and is inversely proportional to the square of the distance between them.Electrostatic force: The force of attraction between any two charges is
directly proportional to the product of their masses and is inversely proportional to the square of the distance between them.i.e. both the forces are inversely proportional to distance between them.
So, GF = EF ∝ [tex]\frac{1}{r^{2} }[/tex]
where r = distance between them.
When distance between objects are 1m , Both the forces are inversely proportional to 1.
When distance between objects are 4m , Both the forces are inversely proportional to 16.
So, the New forces becomes 1/16th of the original one.
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A red cart ma = 2kg and a blue cart ma = 2 kg are ELASTICALLY crahed into each other at the indicated velocitie and bounce. After the colliion which cart will have the SMALLEST peed
The objects in an elastic collision split apart after impact while maintaining all of their kinetic energy. Kinetic energy, often known as the energy of motion, is discussed in more detail elsewhere.
How do you find the velocity of a bounce?When the ball is not in contact with the ground, the formula h(t+t0)=v0t12gt2 determines the height at time t following the previous bounce at time t0. where v0 denotes the speed shortly before the bounce.
The mass of the red cart, m1, is equal to m1u1 + m2u2 = m1v1 + m2v2.
The blue cart has a mass of m2.
The red cart's starting speed is u1.
The blue cart's starting speed is u2.
The red cart's ultimate speed is v1.
The blue cart's ultimate speed is v2.
The final speed of each cart is determined by the formula: v1 = [m1u1 + m2u2 - m2v2] / m1
m1u1 + m2u2 - m1v1 = v2 / m2
As m1 = m2, our new equation is: v1 = u1 + u2 - v2.
v₂ = u₁ + u₂ - v₁
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Does mass depend on density?.
Mass does not depend on density. Mass and density are two different physical quantities that do not have any direct relationship.
Mass is a scalar quantity that measures the amount of matter in an object and is independent of its location or motion. It is the total amount of matter in an object, and it doesn't change when the object is compressed or expanded.
On the other hand, density is a measure of how much mass is contained in a given volume. It is defined as the ratio of the mass of an object to its volume. The density of an object can change if its mass stays the same but its volume changes, for example, if the object is compressed.
So, mass does not depend on density, but density depends on mass and volume. If the mass and volume are known, the density can be calculated by dividing the mass by the volume.
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What is the relationship between speed and kinetic energy for kids?.
Answer:
they are kinda the same.
What is Newton's 4th law called?.
The law of gravitation is allegedly called the Newton's 4th law. This law gave the world a breakthrough in understanding the universe in a better way.
Newton's law of gravitation states that every object attracts every other object in the universe with a force, called gravitational force. This force is directly proportional to the product of the masses of both the object and inversely proportional to the square of the distance between them. Mathematically it is described as:
F = GmM/R²
Where, F is the gravitational force, G is the universal gravitational constant, M & m are the masses of the objects and R is the distance between the objects.
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How do you find the magnitude and direction of displacement?.
Calculate the inverse tangent of the ratio of the displacement components in the y and x directions to determine the direction of the displacement vector. The magnitude of displacement is equal to the distance covered in a given interval of time if the particle moves at a constant or variable velocity in the same direction, because if it changes direction, the magnitude of displacement changes and does not remain equal to the distance covered.
A quantity with magnitude and direction must also follow certain combination rules in order to qualify as a vector. Vector addition, denoted symbolically as A + B = C, is one of these (vectors are conventionally written as boldface letters). Geometrically, the vector sum can be visualized by placing the tail of vector B at the head of vector A and drawing vector C so that it completes the triangle (starting from the tail of A and ending at the head of B). If A, B, and C are vectors, then it must be possible to reverse the operation and achieve the same result (C), B + A = C. This property (commutative law) is shared by quantities such as displacement and velocity, but there are some that do not (for example, finite rotations in a circle).
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What factors increase momentum?.
An object's momentum can be increased by increasing its mass or velocity. As can be seen, momentum is directly proportional to an object's mass and velocity. So either of the two can be increased to gain momentum.
What is momentum?The quantity of motion of the body is defined as momentum. It is measured by "mass velocity," because momentum depends on velocity, and it also depends on the direction of the body's motion. Because velocity is a vector and mass is a scalar variable, momentum is a vector quantity. Momentum is defined as mass multiplied by velocity. Because all objects have mass, when they move, they have momentum - their mass is in motion. Momentum is a body's "power" when moving, showing how much force it can apply on another body. For example, a bowling ball (big mass) travelling slowly (low velocity) can have the same momentum as a baseball (small mass) thrown swiftly (high velocity).
Here,
The momentum of an object can be increased by increasing its mass or velocity. As can be seen, momentum is proportional to mass and velocity of an object. To gain momentum, either of the two can be increased.
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What is the resultant velocity vector when you add your swimming velocity and the current velocity?.
The sum of an object's individual vector velocities is its final velocity. The scalar product of an object's mass and its acceleration vector is equal to the sum of its vector forces.
How is the resulting vector determined?Formula 2: To get the resultant vector, subtract vectors moving in opposite directions from one another. R is the resulting vector because the vector B moves in the opposite direction of the vector A in this case.
How are two velocity vectors added?As a result, we can directly use the equations v tot = v x 2 + v y 2 and v tot = v x 2 + v y 2 to perform the addition of the two velocities.
What is the formula for velocity vector?Definition: Velocity. The velocity vector is the derivative of the position vector if r(t) is a differentiable vector-valued function that represents the particle's position vector at time t. v(t)=r′(t)=x′(t)ˆi+y′(t)ˆj+z′(t)ˆk.
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which layer is plastic-like and allows the crust to flow over it?
The asthenosphere layer is plastic-like and allows the crust to flow over it.
What is asthenosphere and its function?Asthenosphere is the name given to the upper mantle; astheno is a Greek word that means "weak." Because of its liquid condition, where rock material deforms more easily and magma production occurs, the weak layer is so named. Below the lithosphere is the asthenosphere. The lithosphere flows on the asthenosphere, which is formed of a very viscous, ductile, semi-solid substance. It is around 440km thick and a solid with liquid-like characteristics. The intense pressure and heat in this stratum of solid rock enable the boulders to flow like liquids. The asthenosphere's rocks are less dense than the lithosphere's rocks. As a result, the tectonic plates of the lithosphere can move about on the surface of the Earth.
Thus, the asthenosphere layer is plastic-like and allows the crust to flow over it.
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A scientist studying the Milky Way galaxy notices a bright light in the sky. What information would she need to prove that the object is a comet and not a star?
Does the object move?
Is there gas in the object?
How big is the object?
Are there other objects orbiting it?
(2 points)
II only
III only
I and II
I and III
A scientist studying the milky way galaxy notices a bright light in the sky, I and II provides information would she need to prove that the object is a comet and not a star.
Which region of the Milky Way can we see?Since we are viewing the galaxy edge on and from within, we perceive the galactic disk as a band that surrounds the entire sky. Depending on the time of year and where you are on Earth, you can see different portions of the disk, but you can always see some of it.
Ice, dust, and tiny rocks or particles are the main components of comets. They are included in the solar system because they orbit the sun.
They become heated by solar radiation as they approach the sun and begin to release gases that were initially condensed. The comet's tail glows brightly as a result of the gas release.
They produce a bright coma that can be several times the diameter of Earth when they have warmed up.
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What is magnitude of 2i 3j 4k?.
The magnitude of 2i 3j 4k is 5.38 unit.
What is magnitude?Magnitude is simply "distance or quantity" in physics. This representation can be used to show the motion of an item in absolute or relative terms, as well as its size change. It's a descriptive term for something's size or scope. Magnitude is a term used to describe length or size in physics.
To find the magnitude of a vector in three dimensional space, we can use this following formula:
∥a∥ = √ (x² + y² + z²)
In this case, we are given that:
X = 2, Y = 3, and Z = 4
Thus, the magnitude of the vector is:
∥a∥ = √ (2² + 3² + 4²)
∥a∥ = √29
∥a∥ = 5.38
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the plates of a parallel-plate capacitor are connected to a battery. if the distance between the plates is halved, the energy of the capacitora. a. Increases by a factor of 4
b. Doubles
c. Remains the same
d. Is halved
e. Decreases by a factor of 4
A parallel-plate capacitor's energy is given as it is halved. in this case, Option C is correct.
Where are the capacitor battery's capacitance and emf?
a = U = 1 CUR
Capacitance is known to be equal to C and CRA. Capacitance = d = ac 2 Eu A = and the new capacitor's expat energy = U = clu2 = 2002 are calculated when the space between the plates is cut in half. 2 20 01 = 20. The energy of the capacitor doubles as a result.
Does the battery contain a capacitor?
A battery is an electronic device that transforms chemical energy into electrical energy to provide a static electrical charge for power, whereas a capacitor is an electronic component that stores electrostatic energy in an electric field.
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Imagine you inherit a farm and now have to purchase fertilizer for the farm. The farm is 340 acres and had corn planted the previous year. You must add fertilizer to the soil before you plant this year's crop. You go to the local fertilizer store and find SuperPhosphate-brand fertilizer. You read the fertilizer bag and can recognize from your high school chemistry class a molecular formula C*a_{3}*P_{2}*H_{14}*S_{2}*O_{21} (you don't understand anything else written on the bag because it is imported fertilizer from Japan). You must decide how much fertilizer to buy for application to your cornfields. If each bag contains 25 kg of fertilizer and costs $54.73, how many bags of fertilizer must you purchase, and how much will it cost you to add the necessary fertilizer to your fields ?
Total Cost is = $107,380 if The farm is 340 acres and had corn planted add fertilizer to the soil before you plant this years' crop.
What is called fertilizer?A fertiliser is a natural or artificial substance containing chemical elements (such as Nitrogen (N), Phosphorus (P) and Potassium (K)) that improve growth and productiveness of plants. Some synonyms include the terms "enrichment" or "plant nutrient".
Why is fertilizer important?Without fertilizers, nature struggles to replenish the nutrients in the soil. When crops are harvested, important nutrients are removed from the soil, because they follow the crop and end up at the dinner table. If the soil is not replenished with nutrients through fertilizing, crop yields will deteriorate over time.
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Which describes what an outside observer at rest would observe about a spaceship that speeds up and approaches the speed of light?.
An outside observer at rest would observe the spaceship decreasing in length and its clock ticking slower, as the spaceship approaches the speed of light.
What is spaceship?A spaceship is a craft designed for interplanetary or interstellar travel. Spaceships are typically propelled by some form of energy, such as chemical propulsion, nuclear propulsion, or even solar sails. These craft usually have the capability to travel far and fast, allowing them to explore and even colonize distant planets and star systems. Most modern spaceships are heavily computerized, with computers controlling all aspects of the craft, from navigation to propulsion. They are also equipped with life support systems that can sustain long-term space travel, such as air and water recycling systems, airlocks, and temperature control. Some of the most advanced spaceships are equipped with artificial intelligence, allowing them to navigate autonomously and even make decisions on their own.
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What is the formula of torque Class 11?.
T is equal to F r sin. T is a torque. the linear force F. r is the measurement of the distance between the spin axis to the point at which a linear force is applied. torque
What exactly does torque mean?Torque is a twisted or twisting force that frequently results in rotation around in an axis, which may be a fixed point or the center of mass. The capacity of something spinning, such as a cog or a shafts, to resist turning resistance is another way to think of torque.
What does the word "torque" mean and what does it mean graphically?Although a capital "T" is typically used to represent torque, the true sign is indeed the Greek letter omega, or "." The letter "M" is used to denote torque when it is alluded to as a second of force.
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A kid slides down a frictionless slide with a height of 4m. (Hint: the answers are independent
of the mass.)
a. What is the kid's speed at the bottom of the slide?
b. If the kid's speed is 6 m/s at the bottom, what percentage of the original potential energy is lost
to friction?
The kid's speed at the bottom of the slide is 8 m/s.
What is the kid's speed at the bottom of the slide?0% of the original potential energy is lost to friction since the slide is frictionless.The speed at the bottom of the slide is determined by the formula v = sqrt(2gh), where g is the acceleration due to gravity (9.81 m/s^2) and h is the height of the slide (4 m). Therefore, the speed at the bottom of the slide is 4.9 m/s.If the kid's speed is 6 m/s at the bottom, then the percentage of original potential energy lost to friction is 20.8%. This is calculated by subtracting the speed at the bottom of the slide (6 m/s) from the speed that would have been achieved without friction (4.9 m/s), then dividing the difference (1.1 m/s) by the speed without friction (4.9 m/s). This answer is then multiplied by 100 to get a percentage.In conclusion, the percentage of the original potential energy that is lost to friction can be calculated by subtracting the speed achieved with friction from the speed that would have been achieved without friction, then dividing the difference by the speed without friction and multiplying the result by 100.To learn more about potential energy refer to:
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How many universal laws are there in the universe?.
The 12 universal laws are said to represent the underlying, unchangeable rules of our cosmos, which have always been instinctively understood by earlier civilizations.
Just one of the 12 fundamental laws, the rule of attraction can help us live lives that are more in harmony with our spiritual self by teaching us the other universal laws.
A traditional Hawaiian meditation performed to seek release, is commonly mentioned in connection with the rules. The hermetic philosophy of ancient Egypt has also been connected to some of the rules, though and "universal law".
Kaiser, Kumar, and several other individuals from all around the world continue to utilize the list of antiquated laws, demonstrating how well it has stood the test of time. The guidelines, according to Kaiser, are all about managing your life with love and joy.
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In what way does 5G improve on 4G in terms of connected users in a small space?.
Yes, 5G outperforms 4G in terms of connected consumers in a constrained area. quickly connected and over a network. Undoubtedly, a 5G phone will function on a 4G network.
Because a recent network upgrade just occurred. The fifth-generation technological standard used by the telecom sector is referred to as "5G." Along with other network technologies, the 5G mobile phone also supports 4G, 3G, and 2G. Despite the fact that 5G might be regularly utilised in the current 4G network environment, the experience is not as cool as 5G. 2019 saw the global rollout of broadband cellular networks by cellular phone operators. These networks support the first commercially available 5G mobile phone that supports 5G+4G dual-card dual-standby at the same time.
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What is the magnitude of the vector 12i 8j 24k *?.
The 12i, 8j, and 24k vector's magnitude is 28.
A vector's length is considered to be its magnitude. The vector's absolute value or its modulus are other names for it. Using the Pythagorean theorem, we can determine a vector's magnitude.
A vector's magnitude, represented by the symbol |v|, is used to determine a vector's length. The distance between the vector's beginning point and endpoint is what this amount essentially represents. The vector's direction and magnitude are its length and direction, respectively. It only takes a few basic steps to calculate a vector's magnitude.
Other crucial vector operations include multiplying and dividing, determining the cross product, and calculating the angle between two vectors.
The vector's magnitude is calculated as 12i - 8j - 24k take square for each element, which is 122 + 82 + 242 = 282.
square root of 282 once more
Once you have this, the magnitude is 28.
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Correct Question:
What is the magnitude of the vector, 12i – 8j – 24k ?
How quickly would water I a river flow past very close contour lines
Several factors, like the river's magnitude, the slope of the terrain, and others, would affect how quickly the river would flow past contour lines.
How can contour lines convey a river's flow direction?To depict the curvature of the landscape and demonstrate the elevation of the land, contour lines are utilized. The flow direction of a river can also be shown using contour lines. A V-shaped pattern results from the employment of contour lines to depict the direction that a river flows.
The V's point will be directed downstream, or in the direction that the river is flowing. Along the river's downstream course, contour lines will likewise move closer together as the river lowers in height. Where the river curves or meanders, the contour lines will also form a loop pattern. The contour line's loop will be pointing downward, indicating the direction of the river flow.
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If you add 20g of ice at 0 degree celciu to 180g of water at 20 degree celciu, what i the final temperature of the water a all of the ice melt?
The combined water and melted ice temperature is 31.15°C.
We can use the following formula:
q = m c T is used to calculate the final temperature of the water and melted ice, where:
q = added or lost heat
m = the substance's mass
c = the substance's specific heat capacity
T = temperature change
Finding the heat that the ice has taken away:
(20g) x (2.1 J/g°C) x (0 - (-20))°C = q
q = 8400 J
Identifying the heat gained by water:
(180g) x (4.18 J/g°C) x (T) = q
Taking the heat lost by ice and converting it to the heat gained by water
(180g) x (4.18 J/g°C) x (T) = 8400 J
Trying to find T
T = 8400 J/(180g x 4.18 J/g°C).
ΔT = (8400/756)°C = 11.15°C
We get the final temperature by adding the initial temperature of the water to the temperature change.
T(f) = 20°C + 11.15°C = 31.15°C
As a result, the combined temperature of the water and melted ice is 31.15°C.
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