A dog is pulling an empty sled attached by a harness that is parallel to the
ground in the snow. The sled is moving with constant velocity. The mass of
the sled is 1.2 kg, and the coefficient of static friction is 0.20. Determine the
harness tension.
Answers
Answer:
Explanation:
There are only two forces causing motion involved. They oppose each other. You know this because there is no acceleration of the sled: you see only a velocity.
The formula when friction is involved is
Fnet = T - mu*Normal
mu is the frictional coefficient
The normal is the downward force caused by the mass of the sled being pulled down by the gravitational constant.
The tension is brought about by the dog pulling in the opposite direction to the frictional force.
The frictional force, oddly, acts in a horizontal direction even though the normal is vertical. It does this because friction always opposes motion.
Since there is no acceleration, the net force = 0
N= m * a_g
m = 1.2 kg
a_g = 9.8
N = 1.2 * 9.8
N = 11.76
The frictional force = mu*Normal Force.
Ff = N * mu
N = 11.76
mu = 0.2
Ff = 0.2 * 11.76
Ff = 2.35
As stated The frictional force and the Tension are equal but in opposite directions
T = 2.35
Related Questions
Which equation best represents the intensity of light coming out of a secondpolarizing filter is equal to the intensity of polarized light coming out of a firstpolarizing filter multiplied by the cosine, squared, of the angle between thepolarizing axes of the two filters?
Answers
Let the angle between the polarizing axes of the two filters be
\(\theta\)Let the intensity of polarized light coming out of the first polarizing filter be I1.
Then the intensity of the second polarizing filter will be
\(I_2=I_1cos^2\theta\)Thus, the correct option is B.
If you are going through space at 30 miles per hour. How fast are you going in km per week? (1 mile = 1.609 km)
Answers
Answer:
hi I am Manasi
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in which kind of community do people mostly work in groups that generate idea and provide services?
Answers
Answer:
Postindustrial
Explanation:
) a pair of binoculars has an objective diameter of 35 mm, while the human eye has an objective diameter of about 5 mm. calculate the lgp of the binoculars vs. the human eye.
Answers
The linear magnification (M) of a pair of binoculars or the human eye can be calculated using the formula:
M = D_obj / D_eye,
where D_obj is the objective diameter and D_eye is the eye diameter.
For the binoculars, the objective diameter (D_obj) is 35 mm, and for the human eye, the objective diameter (D_eye) is about 5 mm.
Using the formula, we have:
M_binoculars = 35 mm / 5 mm,
Simplifying the expression, we find:
M_binoculars = 7.
Therefore, the linear magnification of the binoculars is 7.
For the human eye:
M_eye = 5 mm / 5 mm = 1.
Therefore, the linear magnification of the human eye is 1.
Hence, the linear magnification of the binoculars is 7, while the linear magnification of the human eye is 1.
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PLS HELP —> A student investigated the insulating properties of different materials. Figure 4 shows some of the equipment used by the student. This is the method used: 1. Wrap insulating material around the can. 2. Put a fixed volume of boiling water in the can. 3. Place the lid on the top of the can. 4. Measure the time taken for the temperature of the water to decrease by a fixed amount. 5. Repeat steps 1–4 using the same thickness of different insulating materials. Identify the independent variable and the dependent variable in this investigation.
Answers
Independent variable - Time taken
Dependent variable - Temperature
What is dependent and independent variable?In scientific experiments, a dependent variable is a variable that is being measured or observed, and whose value depends on the value of another variable, known as the independent variable.
The independent variable is a variable that is manipulated or controlled by the experimenter to see its effect on the dependent variable.
By manipulating the independent variable and observing its effect on the dependent variable, researchers can gain a better understanding of the relationship between variables and the underlying mechanisms that govern them.
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If the velocity is 50 and the time is 5 seconds what is the acceleration?
Answers
Just divide the both, you will get the answer!
does it sound rude?
im sorry for that!
Answer:
10
Explanation:
You have been asked to participate on the selection committee for a new textbook for the course you will be teaching in the upcoming academic year. Identify and discuss the criteria that you will use to evaluate each textbook that is under consideration by the committee.
Answers
you can eat burrito with hot taco and if school like?
Two ice skaters stand facing each other at rest on a frozen pond. They push off against one another and the 49 kg skater acquires a speed of 2. 10 m/s. If the other skater acquires a speed of 3. 81 m/s, what is her mass in kilograms?
Answers
Her mass is approximately equal to 27 kilograms.
How do you prove that?First of all, you need to understand that momentum is a conserved quantity and the solution to this problem involves elastic collision.
Momentum can be defined as p = mv where p is momentum, m is mass, and v is velocity. Just like energy, momentum is a physical quantity that is conserved in an isolated system. Momentum is conserved as a result of Newton's third law, which states that \(F_A=-F_B\).
You are given that the ice skaters bounce off each other, meaning the collision is elastic. Remember that in an elastic collision, m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂ where
m₁ is the mass of the first body, m₂ is the mass of the second body,u₁ is the initial velocity of m₁,u₂ is the initial velocity of m₂,v₁ is the final velocity of m₁, andv₂ is the final velocity of m₂.Suppose that m₁ = 49 kg, m₂ = x, u₁ and u₂ = 0 m/s, v₁ = 2.1 m/s, and v₂ = 3.81 m/s. Then the mass of the other ice skater is as follows:
49 · 0 + x · 0 = 49 · 2.1 + x · 3.81
0 = 102.9 + 3.81x
3.81x + 102.9 = 0
3.81x = -102.9
x ≈ -27
Since a mass value can't be negative, the absolute value of x is 27. Therefore, it's her actual mass in kilograms.
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A 2,000 kg car, initially traveling at a speed of 15 m/s, is accelerated by a constant force of 10,000 N for 3 seconds. The new speed of the car is
Answers
Answer:
The new speed of the car is 30 m/s.
Hope you could get an idea from here.
Doubt clarification - use comment section.
Identify each part of this chemical equation, which describes the burning of methane and oxygen.
A (the entire green box):
B (the blue box):
C (the arrow):
D (the number):
E (the purple box):
Answers
\(\boxed{\boxed{\sf CH_4+2O_2}\longrightarrow \boxed{\sf CO_2+2H_2O}}\)
Total chemical equationReactant sideReaction happening directionCoefficientProducts sideTheories are backed up with lots of data, evidence, and observations from many people over time.
Question 7 options:
True
False
Answers
Answer:
The Answer is True! I took the test!
Explanation:
If the temperature outside increases from 30 degrees to 60 degrees, how has the kinetic energy of the air particles changed?
Answers
Please answer this
No links please
Answers
What does Newton's third law describe?
Answers
Theoretically, what would be the mass of an object accelerated
to 100% the speed of light?
Answers
I know most of the answers will say infinity, but still this needs deeper look about its physical meaning and does it consider a practical logic?
Infinity usually used for something we could not measure, however the reality may be different!
The denominator of the equation would become 0 and the mass would become infinite if the mass's velocity ever surpassed the speed of light.
Speed of light and mass:The amount of energy needed to accelerate an infinite mass would be infinite as well. The fact that light travels at the speed of c indicates that it has no rest mass.
When a mass particle approaches the speed of light, its energy grows and becomes infinite at that speed, which is why it can never be accelerated to that speed.
Experiments have confirmed this, and it has been demonstrated that nothing goes faster than the speed of light.
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Why summer makes us lazy common lit?
Answers
\(\huge\purple{Hi!}\)
Recent research suggests that summer really does tend to be a time of reduced productivity. Our brains do, figuratively, wilt.
One of the key issues is motivation: when the weather is unpleasant, no one wants to go outside, but when the sun is shining, the air is warm, and the sky is blue, leisure calls.
on rainy days, men spent, on average, thirty more minutes at work than they did on comparatively sunny days.
bad weather made workers more productive, as measured by the time it took them to complete assigned tasks in a loan-application process.
When the weather improved, in contrast, productivity fell. The mere thought of pleasant alternatives made people concentrate less.
In summer, our thinking itself may simply become lazier.
Pleasant weather can often lead to a disconcerting lapse in thoughtfulness.
The better the weather, the easier it was to get the students to buy into a less-than-solid argument: on days that were sunny, clear, and warm, people were equally persuaded by both strong and weak arguments in favor of end-of-year comprehensive exams.
When the weather was rainy, cloudy, and cold, their critical faculties improved: in that condition, only the strong argument was persuasive.
Summer weather—especially the muggy kind—may also reduce both our attention and our energy levels.
In one study, high humidity lowered concentration and increased sleepiness among participants.
The weather also hurt their ability to think critically: the hotter it got, the less likely they were to question what they were told.
The shift toward mindlessness may be rooted in our emotions.
People get happier as days get longer and warmer in the approach to the summer solstice, and less happy as days get colder and shorter.
They also report higher life satisfaction on relatively pleasant days. The happiest season, then, is summer.
A good mood, generally speaking, has in turn been linked to the same type of heuristic, relatively mindless thinking.
A bad mood tends to stimulate more rigorous analytical thought. Weather-related mood effects can thus play out in our real-life decisions—even weighty ones.
There’s a limit to heat’s ability to boost our mood.
when temperatures reach the kind of summer highs that mark heat waves all over the world, the effect rapidly deteriorates.
on days when the temperature rose above ninety degrees, the negative impact on happiness levels was greater than the consequences of being widowed or divorced.
Our cognitive abilities seem to improve up to a certain temperature, and then, as the temperature continues to rise, quickly diminish.
the optimal temperature hovered around seventy-two degrees Fahrenheit, twenty-seven degrees Celsius, or roughly eighty-one degrees Fahrenheit.
Blistering heat does give us a perfectly good reason to eat ice cream: studies have shown again and again that blood glucose levels are tied to cognitive performance and willpower. A bite of something frozen and sweet, boosting depleted glucose stores, might be just what a brain needs as the temperature spikes.
Problem 3. Assume that the Milky Way has a central bulge of uniform density with a radius R. Also assume that the gravitational force due to the flat portion of the galaxy can be neglected. 1. Using Newton's equations, show that the rotation curve can be mathematically written as v∝{rr1 for for r≤Rr>R 2. Actual observations suggest that outside the bulge, the speed becomes a constant. What is the reason for this? What is the name of the 'substance' responsible for this observation? 3. The Milky Way has two different populations of stars: Population I and Population II stars. What are the main differences between these two populations of stars in terms of their age, their motion, their metal-content, and their location in the Milky Way?
Answers
Rotation curve using Newton's equations can be mathematically written as v∝{rr1 for for r≤Rr>RFor a circular orbit of radius, r, the acceleration of a star in the disk is given by: a = v²/r and the gravitational force it experiences is given by: F = G(M(R.2.
The actual observations suggest that outside the bulge, the speed becomes a constant. This happens due to the presence of Dark matter. This substance does not emit, absorb, or reflect light, and is therefore transparent.3. Population I stars are younger stars that orbit around the disk plane of the galaxy.
They are generally located in the spiral arms of the galaxy. They move in an orderly fashion, and have higher metallicities. Population II stars, on the other hand, are older stars that are located in the bulge or the halo of the galaxy. They have lower metallicities than Population I stars, and they move in random directions.
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If you drop a rock from 700 meters high, how long will it take the hit the ground?
(Remember to make height negative when solving because it is falling)
5
10
11.95
7.95
Answers
Answer:
The correct option is;
11.95
Explanation:
The given parameters are;
The height from which the rock is dropped = 700 meters
The time for the to hit the ground is given by the relation, h = u·t + 1/2·g·t²
Where;
h - The height = 700 meters
u = The initial velocity = 0
t = The time taken for the rock to cover the height, h, and hit the ground
g = The acceleration due to gravity = 9.81 m/s²
Therefore, we have by substitution,
700 = 0 × t + 1/2 × 9.81 × t²
∴ t = √(700/(1/2 × 9.81)) ≈ 11.95
The time for the rock to hit the ground, t ≈ 11.95 seconds.
There is a tender for building a new mall in Alexandra, what are the three main stakeholders and their functions required to ensure the completion of the project. 1.2 During the construction of a road in a particular community. who represent the community and what is their duties. 1.3 Before any type of Civil Engineering project is carried out, what needs to be done ensure the viability of the project. 1.4 The contractor has won a tender for construction of a Bridge, show its hierarchy of working when carrying out the work. 1.5 A 50 km road construction is to take place, the duration of the project is 10 days, draw the bar chart of the project. Question 2 (10) 2.1 Why is Risk Management necessary in a project?
Answers
For a successful final touch of a construction venture, key stakeholders consisting of the consumer/proprietor, architect/layout group, and creation contractor are crucial. Risk management is necessary to perceive and mitigate capacity risks, ensuring project success and minimizing disruption
The 3 important stakeholders for the development of a new mall in Alexandra are:
Client/Owner: The patron/proprietor is the entity or agency initiating the mission. Their feature is to define the task necessities, provide the important funding, and oversee the entire task. Architect/Design Team: The architect and layout crew are answerable for developing the architectural and structural plans for the mall.Construction Contractor/Builder: The production contractor is chargeable for executing the construction sports and bringing the mall to reality.During the construction of an avenue in a particular network, the network is represented by:
Local Authorities: The local authorities, which include the municipal or city council, represent the community's pastimes. Their duties consist of engaging with the network to apprehend their needs and issues associated with the road construction project.
Before any sort of Civil Engineering mission is executed, the subsequent steps want to be taken to ensure the viability of the challenge:
Feasibility Study: A feasibility observation is performed to assess the technical, financial, criminal, and environmental components of the venture. Environmental Impact Assessment: An environmental impact evaluation is performed to evaluate the capacity environmental consequences of the undertaking.Design and Engineering: Detailed layouts and engineering paintings are conducted to develop the challenge plans and specifications.Cost Estimation and Budgeting: Cost estimation is carried out to decide the overall undertaking price, together with substances, hard work, devices, and other expenses.The hierarchy of running for a contractor sporting out the development of a bridge typically consists of the subsequent degrees:
Project Manager: The undertaking supervisor oversees the complete creation mission, which includes making plans, scheduling, budgeting, and coordinating resources.Site Manager: The website online supervisor is accountable for on-site operations and coordination. They control the daily sports, supervise the development group, screen development, and ensure adherence to safety and high-quality requirements.Foremen and Supervisors: Foremen and supervisors are chargeable for particular areas or trades inside the production process. They supervise the people, coordinate duties, and make sure that work is done in step with the mission plans and specs.Skilled Workers: Skilled employees consist of carpenters, masons, electricians, welders, and other specialized tradespeople who perform the actual construction obligations.Laborers: Laborers are liable for assisting skilled people, wearing materials, and appearing fashionable hard work obligations required for the construction work.To draw the bar chart (also referred to as a Gantt chart) for a 50 km street creation undertaking with a duration of 10 days, the chart could represent the obligations and their respective intervals. However, a standard bar chart for an avenue creation undertaking may also include duties including surveying, excavation, laying subbase, paving, and street markings, amongst others.
The horizontal axis represents the timeline (in days), and the vertical axis represents the responsibilities. Each undertaking is represented with the aid of a horizontal bar that suggests its length.
Question 2 (10):
2.1 Risk control is vital in a venture for the following motives:
Identify and Assess Risks: Risk control allows perceive capability risks and investigate of their potential impact on the assignment.Mitigate and Control Risks: Through chance management, proactive measures can be taken to mitigate and control dangers. Enhance Decision-Making: By considering risks and their capacity outcomes, danger control gives treasured information for choice-making. Improve Project Performance: Effective risk control contributes to better mission performance by minimizing disruptions, delays, and price overruns. Stakeholder Communication: Risk management helps communication with project stakeholders by supplying transparency about capacity risks and the way they'll be controlled.Overall, change management is important for figuring out, analyzing, and responding to risks in a systematic and proactive manner. It enables ensuring task success by using lowering uncertainties and maximizing opportunities for task delivery within the preferred parameters.
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Can someone please illustrate how the refracted ray will look like?
Answers
Answer
As the angle of incidence increases in Figure 2.8, a point is finally reached where the refracted ray does not emerge at the second layer but lie along the interface. This particular angle of incidence at which the angle of refraction is 90° and the refracted ray lies along the interface is known as the critical angle. At and beyond the critical angle, there is no transmitted ray and therefore a very high reflected ray will be recorded .
Therefore,
sinθisin90=Vp1Vp2
But, sin 90 = 1.
At critical angle,
sinθcritical=Vp1Vp2
A critical refracted wave travels along the interface between layers and is refracted back into the upper layer at the critical angle. The waves refracted back into the upper layer are called head waves or first-break refractions because at certain distances from a source, they are the first arriving energy. Recorded first-break refraction is shown in Figure 2.10.
Note that these first-break refractions can give us important information about the shallow velocities on land seismic data.
Note also that seismic data are acquired in such a way that reflections from horizons of interest are in the pre-critical region, even at the farthest offset in the data.
In reality, part of the seismic energy arriving at an interface is transmitted and refracted, and another part of the energy is reflected at that same interface. Given that there are many reflectors in the subsurface, there will be many paths from source to receiver, each of them with a different travel time. The proportion of energy reflected depends on the material properties of the two bounding layers and on the angle of incidence
At which point is the kinetic energy the greatest?
Answers
Answer:
Kinetic energy is energy an object has because of its motion and is equal to one-half multiplied by the mass of an object multiplied by its velocity squared (KE = 1/2 mv2). Kinetic energy is greatest at the lowest point of a roller coaster and least at the highest point.
Explanation:
here is an example Where is the apple when it has the most kinetic energy? When the apple is falling and is right before it hits the ground. As an object falls under the influence of gravity, kinetic energy and potential energy are equal everywhere/at the halfway point only. 10. As an object falls under the influence of gravity, potential energy is greater than kinetic energy after halfway point/ before the halfway point
In the roller coaster, the kinetic energy is greatest at point X.
The kinetic energy of a body is given by 1/2mv^2.
Where;
m = mass of the object
v =velocity of the object.
For a roller coaster, the velocity is maximum at the lowest points of the roller coaster. If the velocity is maximum at the lowest point, it also follows that the kinetic energy is also maximum at the lowest point. Hence point X has the highest kinetic energy.
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Differentiate between the resolving power and magnifiying power of a lens. What is meant by the term "parfocal"?
Answers
Resolving power refers to the ability of a lens to distinguish between two closely spaced objects. It is determined by the wavelength of light and the numerical aperture of the lens.
Magnifying power, on the other hand, refers to the ability of a lens to enlarge the size of an object. It is determined by the focal length of the lens.
The term "parfocal" refers to a type of lens system where multiple lenses have the same focal point when the focus is adjusted. This means that when switching between different lenses, the focus remains the same, making it easier for the user to switch between lenses without losing focus.
Differentiating between the resolving power and magnifying power of a lens involves understanding their respective functions. Resolving power refers to the ability of a lens to distinguish between two closely spaced objects, or in other words, the clarity with which the lens can produce an image. Magnifying power, on the other hand, refers to the degree to which a lens can enlarge the image of an object.
The term "parfocal" is used to describe a set of lenses that, when interchanged on a microscope or other optical instrument, maintain their focus on the same object. This means that when you switch from one parfocal lens to another, only minimal adjustments to the focus are needed, allowing for a seamless transition between lenses with different magnifying powers.
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Resolving Power: It is the ability of a lens to separate or distinguish between closely spaced objects, reflecting the detail that can be seen with the lens.
The magnifying powerMagnifying Power: It denotes how much larger an object appears through a lens compared to its actual size. High magnification doesn't necessarily mean better image quality.
Parfocal: This term refers to lenses that remain in focus even when the magnification or focal length changes. It enables swift adjustments in magnification without needing constant refocusing.
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A box sliding on a frictionless surface collides and sticks to a second identical box which is initially at rest.
1)Compare the initial and final kinetic energies of the system of two boxes. A) Kinitial > Kfinal B) Kinitial = Kfinal c) Kinitial < Kfinal
Answers
The initial kinetic energy of the system is greater than the final kinetic energy.
Before the collision, the first box has kinetic energy due to its motion. The second box, being at rest, has zero kinetic energy. After the collision, both boxes move together as a single object, so their combined mass is greater than the mass of the individual boxes.
Therefore, the final velocity of the combined object is less than the initial velocity of the first box. Since kinetic energy is proportional to the square of the velocity, the initial kinetic energy is greater than the final kinetic energy of the system.
Additionally, since the surface is frictionless, there is no loss of energy due to heat or sound during the collision, so the total kinetic energy of the system is conserved.
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Can someone please help
Answers
99.16 Newtons is the new force of attraction between the particles.
What causes an atoms to attract one another?The forces that hold atoms together to create molecules and solids are referred to as chemical bonds. The attraction between the electrons of one atom and the nuclei of another atom as a result of this electric force is what is known as a chemical bond.
\(F = (kq1q2)/r^2\)
\(9,916 = (kq1q2)/r^2\)
\(F = (k*(q1/5)*(q2/5))/(2r)^2\)
\(F = (1/100)((kq1*q2)/(r^2))\)
So, the new force of attraction is:
\(F = (1/100)*9,916 = 99.16\)Newtons (rounded to 4 decimal places)
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How much force is needed to keep the bowling ball moving towards the pins once it has
left the man's hand?
PLEASE HELP!
Answers
Answer:
a lot of force is the answer
Explanation:
happy Ramadan kid
an object is placed at dist 25cm in front of concave mirror and image has magnification of -2 .find focal length
Answers
Answer:
Given,
Object distance, u=25cm
Focal length, f=20cm
From mirror formula
f
1
=
v
1
+
u
1
−20
1
=
v
1
−
25
1
⇒
v
1
=−
20
1
+
25
1
v=100cm
The image will be real, inverted magnified
Explanation:
Given,
Object distance, u=25cm
Focal length, f=20cm
From mirror formula
f
1
=
v
1
+
u
1
−20
1
=
v
1
−
25
1
⇒
v
1
=−
20
1
+
25
1
v=100cm
The image will be real, inverted magnified
What characteristic is shared by sunspots, solar flares, and coronal mass ejections? Select the two correct responses.(1 point)
They appear as dark spots on the sun's surface.
They tend to occur during active periods of the solar cycle.
They are caused by outward fluctuations of the sun's magnetic field.
They appear as bright spots on the sun's surface.
Answers
Answer:
they tend to occur during active periods of the solar cycle
Explanation:
The characteristic, shared by sunspots, solar flares, and coronal mass ejections, is they are dark spots on the sun's surface and occur in active solar cycle period.
What is solar activity?
The sunspots, solar flares, and coronal mass ejections are the type of solar activities. This solar activities are led by the solar magnetic activity.
Lets check all the option.
They appear as dark spots on the sun's surface-The sunspots are considered as dark spot. This option is correct.They tend to occur during active periods of the solar cycle-The sunspots, solar flares, and coronal mass ejections tend to occur during the solar cycle period.They are caused by outward fluctuations of the sun's magnetic field.The sunspots, solar flares, and coronal mass ejections are the result of solar magnetic activity. This option is not correct.They appear as bright spots on the sun's surface-The sunspots are considered as dark spot.Hence, the characteristic, shared by sunspots, solar flares, and coronal mass ejections is they appear as dark spots on the sun's surface and tend to occur during active periods of the solar cycle.
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9.00 V is applied to a wire with aresistance of 52.0 2. At what distancefrom the wire is the imagnetic field2.22 x 10-8 T?
Answers
Answer:
1.56 m
Explanation:
First, we need to find the current in the wire, so we will use the following equation:
\(V=IR\)Where V is the voltage, R is the resistance and I is the current. Replacing the values and solving for I, we get:
\(\begin{gathered} 9V=I(52\Omega) \\ \frac{9V}{52\Omega}=I \\ 0.17A=I \end{gathered}\)So, the current is 0.17 A.
Now, the magnetic field generated by a wire with current I at a distance r is equal to:
\(B=\frac{\mu I}{2\pi r}\)Where μ is 4π x 10^(-7). So, replacing the values and solving for r, we get:
\(\begin{gathered} (2.22\times10^{-8})=\frac{(4\pi\times10^{-7})(0.17)}{2\pi r} \\ (2.22\times10^{-8})r=\frac{(4\pi\times10^{-7})(0.17)}{2\pi r}\cdot r \\ (2.22\times10^{-8})r=\frac{4\pi\times10^{-7}(0.17)}{2\pi} \\ (2.22\times10^{-8})r=3.4\times10^{-8} \\ \frac{(2.22\times10^{-8})r}{2.22\times10^{-8}}=\frac{3.4\times10^{-8}}{2.22\times10^{-8}} \\ r=1.56\text{ m} \end{gathered}\)Therefore, the distance is 1.56 m
convert 0.0079 cm to mm
Answers
Answer: 0.079mm
Explanation:
Hope this helps^^
Calculate the gravitational potential energy is a bicycle of mass 20kg and its rider of mass 50kg cycle to the top of a hill 120 metres high.
Answers
Explanation:
Gravitational Potential Energy can be calculated with the following formula:
\(mgh\)
Where m is mass, g is Gravitational Field Strength, and h is height. GFS on Earth is always 9.81, the combined mass of the cyclist and the bicycle is 70, and the height is 120. Multiplying these values together, we get:
82,404J.