What are the chosen units for the three fundamental quantities in the SI system, what are them in the British system ?

What are the chosen units for the three fundamental quantities in the SI system, what are them in the British system ?.

Fundamental quantities in the SI system

  1. What are the fundamental quantities in mechanics?
  2. What are the chosen units for the three fundamental quantities in the SI system, what are them in the British system ?
  3. What is the current standard for each of the three fundamental units in the SI system?
  4. Kinetic energy is defined a E= ½ mv2, where m is the mass of the object and v its speed. What are the SI units of energy?
  5. What are the units of energy in the cgs system (a system where the three fundamental units are centime, gram, and second

What are the chosen units for the three fundamental quantities in the SI system, what are them in the British system ?

What kind of circuits are used to wire houses and have more than one path for electrons to flow? What will happen if we use the alternate circuit ?

What kind of circuits are used to wire houses and have more than one path for electrons to flow? What will happen if we use the alternate circuit ?.

Gauss’s Law

  • Your  responses should be thoughtful, well-written, and logical. Include  visuals, equations, references, page numbers in the textbook, and links  to external websites to back up your answers as necessary. Focus on  helping your classmates understand concepts and problem solving  methodologies. I encourage clarity, insights, and analogies.

1)

Gauss’s Law can be used  to find D dot ds (using the integral form of Gauss’s Law) or electric  field flux flowing out of a volume through surface S, where the total  flux through the surface equals the enclosed charge, Q. If the  conveniently chosen Gaussian surface is a circle to enclose a positive  point charge, it stands to reason that the direction of D is radially  outward. Reading closely, it also allows you to pick a “purely  tangential” component. I had not thought about the tangential component.  I cannot visualize what surface allows flux to be radially outward and  tangential. This is discussed on page 188 of our text. Thanks for any  insight, Kyle

2)

What kind of circuits are used to wire houses and have more than one  path for electrons to flow? What will happen if we use the alternate  circuit ?

3)

My question is how does extreme temperatures effect electric fields and magnetic fields?

What kind of circuits are used to wire houses and have more than one path for electrons to flow? What will happen if we use the alternate circuit ?

The purpose of electrocardiography, electroencephalography, and electromyography use Maxwell’s Equations

The purpose of electrocardiography, electroencephalography, and electromyography use Maxwell’s Equations.

Maxwell’s Equations

The Electromagnetic Spectrum waves are visible waves that is based  off of frequency and wavelength in a continuum pattern. If we were to  assume that in a vacuumed space, the wavelength of a electromagnetic  wave can be related to a frequency oscillating. Since there’s a direct  correlation between wavelength and frequency, each spectral range can be  specified based on its wavelength (λ) and frequency (f). Equation for  wavelength is the speed of light divided by frequency. λ = c/f, where λ  represents the wavelength. C represents the speed of light, and f  represents the frequency.

One of the most common and familiar part of electromagnetic spectrum  that engineers use today would be radio waves. They have one of the  longest wavelengths but the lowest frequencies with the smallest level  of photon energy. The radio wave was used to communicate information  over a radio wave. Some examples would be like mobile phone broadcasts,  television, or even baby monitors.

Another example of how engineers use Electromagnetic spectrum waves  is the development of microwaves. Microwaves which are similar to or  like the same waves that transmit FM and television signals were  harnessed to cook food. Around World War 2 the first set of microwaves  were created but those first set of microwaves ovens were nowhere near  up to par with some of the modern-day microwaves and their power  settings. The reason being was that the first style of microwaves only  had a on or off switch. So in other words they only produced  electromagnetic spectrum waves or not produce electromagnetic spectrum  waves.

One emerging and/or future technology depending on wavelength is the  Recycling of Radio Waves. According to researcher led by Manos  Tentzeris, “They are developing an electromagnetic energy harvester that  can collect enough ambient energy from the radio frequency spectrum to  operate devices for the internet of things, smart skin and smart city  sensors, and wearable electronics.”

2)

For this part of assignment, I selected equation that describes  behavior of electric charge when Electric field is applied. Equation is  F= qE. This equation interests me at this point because it can be linked  to mechanical world with concept known as force. While we cannot  typically benefit from just E-field, we do benefit from effect of  electric field on the charges. Sizable amount of E field converted to  current used in systems that convert Electric energy into mechanical  energy. Hence relationship or link from Electric force to Mechanical  force. Unfortunately, this seemingly direct link jeopardized by energy  transfer loss that known as concept of efficiency.

Electrons are particles in conductive material. Electrons are  charge particles that can transfer energy from one end of wire to  another. For energy transfer to occur, electric field must be applied.  Each electron has constant, determined experimentally and theoretically  amount of charge equal to 1.6E-19 C. When conductor appear in constant  E-field all free electron will be forced to edges of conductor such that  sides opposite charges of the E-field source and receiving conductor  will balance out. In case of varying polarity or direction of the  E-field we will observe change of the polarity in the conductors that  happen to be in the E- field. Now what selected equation is actually  states is that strength of the E-field will have greater effect on the  electrons. This effect of the E field on electrons humans defined as a  force.

One application for this equation is in design of electric motors.  Electric motors conceptually are as follows. Charged particles in  conductor (electrons) when moving, create Electric field that excites in  mechanically free to move object charged particles that move to align  with current carrying conductor. Charged particles in the object will be  motivated to align faster and in the end with greater force when  E-field is stronger. Greater E-field creates greater magnetic field  which in turn induces E-field. Mechanisms designed to align fields in  desired direction of motion and with consideration of aligning  perpendicularly to E-field and parallel to magnetic field. This creates  class of electromechanical devices.

Application of electric force has expanded during last century  exponentially. And yet we are not anywhere close to limit of  applications to this charming phenomenon. On example of growing  application of Electric force is ability to wirelessly transfer energy  on short distances. For consumer application notably would be desire of  automotive industry to use higher voltage circuits. In considerations  are power circuit with 48Vand higher. This potentially allows for  smaller wire gages for the same amount of power transfer.

3)

Maxwell’s  Equations state that in a static electric field, the divergence at one  point equals to the electric charge volume density at that point divided  by a magnetic field. Necessarily, it implies that a rotating magnetic  field is produced by an electric current or by an electric field that  changes with time (Rahm, 2008). Also, it says that a changing magnetic  field that changes with time produces an electric field. In essence, the  Equations consist of three other equations such as Gauss, Faraday, and  Ampere equations.

Maxwell’s  equations in real life can be applied in the explanation of the physics  of permanent magnets. It leads to the formulas generating magnetic  surface currents that describe the generation of the magnetic field as  well as how magnets retain magnetism status. The equations help in the  explanation of how the radio frequency waves propagate that lead to  communications of all kinds to occur with radio signals and TV  transmitters (Rahm, 2008). Besides, the equation explains how the light  in the visible regions is capable of creating things like interference  patterns that have several usages in optical technology.

Maxwell’s  Equations explains the antenna can be designed to get the best signal  which is essential for a cell phone that uses radio waves. Play of video  games using a computer is made possible because of the equation since  it involves changing of electric and magnetic fields (Ishimaru, 2017).  Besides, it is applied in the design of a microwave since it helps in  knowing where the fields are strong or weak. Finally, the equation  allows engineers to know the weight that can make a bridge to crash into  the river.

The  advancement of technology has created another essential use of  Maxwell’s Equations, especially in the health sector. The equation has  used in the determination of how body organs produce bioelectric  signals. The purpose of electrocardiography, electroencephalography, and  electromyography use Maxwell’s Equations in checking of the diseases in  different parts of the body (Ishimaru, 2017). Therefore, it is  projected that the equation would be used in providing more details  about diseases of the brain, heart, and muscles.

The purpose of electrocardiography, electroencephalography, and electromyography use Maxwell’s Equations

Explain how these principals connect to electricity, magnetism, or light in modern applications in physics

Explain how these principals connect to electricity, magnetism, or light in modern applications in physics.

Electricity, magnetism, or light in modern applications

Instructions

In a two-page paper, identify the physics principles contained within the following scenario. Explain how these principals connect to electricity, magnetism, or light in modern applications in physics. Finally, consider the different concepts in which James Clerk Maxwell did research, and give an example of one of these concepts in use in your life. For instance, Maxwell’s research led to the development of radio waves. If you listen to a radio, then you are using Maxwell’s research. Provide another example from your own experience, compare, and contrast your scenario to the provided scenario below.

Scenario

Mandy took a trip to Rome, Italy. Once landed and inside the terminal, she turned her cell phone back on, but it was not charged. She found a charging station with a USB adaptor port. The USB was universal, providing 5 volts in any country you were in, and a small red LED next to her phone’s screen told her the phone was successfully charging. This USB port seemed to have very high amperage, meaning it charged her phone quickly. She was aware, though, that almost all of Italy’s electricity was generated by burning fossil fuels, and thus she was determined after this to use the portable solar charger she had bought rather than wall electricity.

Explain how these principals connect to electricity, magnetism, or light in modern applications in physics

Connect the principles of electricity, magnetism, and light to modern applications of physics.

Connect the principles of electricity, magnetism, and light to modern applications of physics..

Principles of electricity

Connect the principles of electricity, magnetism, and light to modern applications of physics.

Instructions

In a two-page paper, identify the physics principles contained within the following scenario.

Explain how these principals connect to electricity, magnetism, or light in modern applications in physics.

Finally, consider the different concepts in which James Clerk Maxwell did research, and give an example of one of these concepts in use in your life.

For instance, Maxwell’s research led to the development of radio waves.

If you listen to a radio, then you are using Maxwell’s research.

Provide another example from your own experience, compare, and contrast your scenario to the provided scenario below.

Scenario

Mandy took a trip to Rome, Italy. Once landed and inside the terminal, she turned her cell phone back on, but it was not charged. She found a charging station with a USB adaptor port. The USB was universal, providing 5 volts in any country you were in, and a small red LED next to her phone’s screen told her the phone was successfully charging. This USB port seemed to have very high amperage, meaning it charged her phone quickly. She was aware, though, that almost all of Italy’s electricity was generated by burning fossil fuels, and thus she was determined after this to use the portable solar charger she had bought rather than wall electricity.

Connect the principles of electricity, magnetism, and light to modern applications of physics.

Given an AC input voltage of Vrms = 200Vrms and a sinusoidal frequency of omega = 120pi rad/sec

Given an AC input voltage of Vrms = 200Vrms and a sinusoidal frequency of omega = 120pi rad/sec.

A sinusoidal frequency of omega

For the circuit below, perform the following:

  1. Given an AC input voltage of Vrms = 200Vrms and a sinusoidal frequency of omega = 120pi rad/sec, determine the following:
    • V1peak (peak value of AC input voltage)
    • V1(peak-to-Vpeak )(peak to peak value of AC input voltage)
    • Frequency of input voltage V1 in Hz.
    • V2peak (peak value of AC output voltage)
    • V2(peak-to-Vpeak )(peak to peak value of AC output voltage)
    • Frequency of output voltage V2 in Hz.
  2. Construct circuit in MultiSIM using calculated values for V1.
  3. Capture a screenshot that shows V1 and V2 on an oscilloscope XSC1.
  4. Submit calculations, MultSIM screenshot and MultiSIM circuit (.ms11) filefigure 1

 

For the circuit below, perform the following:

  1. Given a voltage gain of -10, determine the value of R2.
  2. Calculate the peak-to-peak value of Vout and rms value of Vout.
  3. Construct circuit in MultiSIM with calculated value of R2.
  4. Capture a screenshot that shows the input voltage V1 and output voltage Vout in MultiSIM with an oscilloscope XSC1
  5. Submit calculations, MultSIM screenshot and MultiSIM circuit (.ms11) file
  • Posted: 9 Minutes Ago
  • Due: 06/06/2018
  • Budget:  $30

Given an AC input voltage of Vrms = 200Vrms and a sinusoidal frequency of omega = 120pi rad/sec

Elementary Lab Physics

Elementary Lab Physics.

Elementary Lab Physics

  1. (20 pts total) In class we did an example with the electric field of two positive charges in line with each other. This problem will go one step further and add in two dimensions. The picture and questions will help walk you through this more complex problem.
    • There are three protons acting on an electron at the origin. Each proton has a charge of 1e and is positioned 1nm from the electron, as shown below.

 

 

  1. (3pts) Draw a FDB for the electron. Just consider the forces of the protons
  2. (1 pt) What direction do you think the electron will travel in due to the electric fields of the protons?
  3. (2 pts) Because this is a 2D problem, write the two expressions that you will need to solve, i.e. Ex and Ey
  4. (7 pts) Solve your equations for the electric field acting in both directions.
  5. (5 pts) What is the force acting on the electron due to the resulting electric field?
  6. (2 pts) Does this answer agree with your prediction in part b? (if it does not agree, DO NOT change your answer for part b. I want to see your initial thoughts with this problem)
  7. (40 pts total) You have two vectors and
  8. (10 pts) What is ?
  9. (10 pts) What is ?
  10. (10 pts) What is ?
  11. (10 pts) What is ?

Elementary Lab Physics

Physics of a Ferris Wheel

Physics of a Ferris Wheel.

Physics of a Ferris Wheel:Lab Report

Format of Scientific Report

 Title Section – If the report is short, the front cover can include any
information that you feel is necessary including the author(s) and the date
prepared.
 Abstract – There needs to be a summary of the major points and conclusions.
It needs to be short as it is a general overview of the report. It would be best to
write this last so you will include everything, even the points that might be
added at the last minute.
 Introduction – The first page of the report needs to have an introduction. You
will explain the problem and show the reader why the report is being made.
You need to explain how the details of the report are arranged.
 Body – This is the main section of the report. There needs to be several
paragraphs with images and graphs if any, with each having a subtitle.
Information is usually arranged in order of importance with the most important
information coming first.
 Conclusion – This is where everything comes together.
 References- Should include the name of Books or database referred to (A list
of all the sources you used.)
Tips for Good Writing
Here are a few tips for good writing.
 Keep it simple. Try to communicate. Keep the sentences short and to the point.
Do not go into a lot of details unless it is needed.
 Use an active voice rather than passive. Active voice makes the writing move
smoothly and easily.
 Good grammar and punctuation is important.

 

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Physics of a Ferris Wheel

Coefficients of Friction

Coefficients of Friction.

Friction

Objectives:  To determine the coefficients of friction between various pairs of materials.

Procedures:  When an object is placed on a flat surface and the surface it tilted to form a ramp, it is possible to measure the coefficients of static friction and kinetic friction by measuring the maximum ramp angle at which the object a) remains stationary, for the case of static friction and b) moves at a slow constant speed down the ramp for the case of kinetic friction.  Analysis of the force acting on the mass, as it is positioned on the ramp, indicate that for both the static and kinetic coefficients of friction,

µ = tan(θ)

where θ is the maximum ramp angle.

For this lab, find two different ramp materials (for example, a flat board, a metal plate, or a table top) and three different objects made of different materials (for example, a block of wood, a metal pan, a plastic object), for a combination of 6 pairs of materials.  Take at least 5 sets of readings for each pair of materials and determine the average coefficients of friction for each pair of materials.

Data Table:

Ramp Material Object Material Static Angle µstatic Kinetic Angle µkinetic
Ex: wood plastic 40 deg 0.839 30 deg 0.577
 
 
 
 
 
 

Lab Report:

Write a 2 page lab report including

  1. Introduction
  2. Background or Theory
  3. Experimental Setup and List of Equipment
  4. Experimental Data (Data Table)
  5. Analysis of Results
  6. Summary and Conclusions

 

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Coefficients of Friction

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