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Main Requirement: Create a music player with an LED matrix. As input the system will have a standard 3.5mm audio input. As output, the system will have 2 speakers in stereo format and an LED matrix of VU meter type audio volume indication.Other Requirements:- The device must have a volume control for the stereo speakers, it can be a control for each channel or preferably a single control for both. In addition, light-emitting diodes (LEDs) should be used in the structure as a visual element of the volume and tones of musical pieces (light scale). This type of representation is known as a VU meter. - A 6x10 matrix should be created where half is controlled by the left audio signal and the other half by the right signal. The volume control will be realized by analog integrated and discrete circuits, to implement the knowledge acquired during the course, specifically it seeks to use operational amplifiers and audio amplifiers. Amplification control is the heart of the project, and it must be designed in such a way that it does notthe audio output is distorted.- The circuit shall be operated from AC mains power from the home network, with no connections to DC sources. You must implement an AC to DC converter circuit that provides the necessary voltages and currents for the different integrated and discrete circuits to use. It is suggested to investigate power supply circuits with the circuits integrated 7812 and 7912.To Do:Please assemble the above by using some simulation software, such as: Multisim, LTspice, Tinkercad (preferred), Proteus; or another that allows to see the assembly of the entire component system with their assigned values Part 1: Mid-Attantic Ocean Profile chains of volcanoes forin ealiod volcanic ares. the following ordet. 2. Check the box next 10 the Mid-Atlantic Ocean Profile line under the heading Profike tienes 3. 11.Which of the following neurotransmitters appears to be mostaffected in Alzheimer's Disease?Group of answer choicesNMDAAcetylcholineSerotoninDopamine12.Which of the following people is least At the CrossFit Championships, a 71 kg athlete is pushing a 150 kg sled. The athlete and the sled move forward together with a maximum forward force of 1,477 N. Assuming friction is zero, what is the magnitude of the force (in N) of the athlete on the sled? Hint: It may be easier to work out the acceleration first. Hint: Enter only the numerical part of your answer to the nearest integer. What is the bearing of the line whose azimuth angle is 80? a)S10E O b) E10S c) N80W d) N100E O e) S100E f) S80E Can someone please help me with the problem HW2 and HW4 please John is an electrical engineering student and Jasmine is a chemistry student.John doesn't think anything important happens the first day of classes,so he skips his Electric Circuits class to go visit Jasmine. She says that a 40 W light bulb in her house is burned out and asks John if he has a spare.He says that he only has a 40 W bulb for a light in his car,but that he is certain it will work in her apartment since it has the same power rating.She says that she doesn't think that sounds right,and so they make a bet. The loser has to clean the other person's apartment. Who wins the bet and why? HW02: A current measured through A2F capacitor is:it=[cos2t 1]mA.Assuming the capacitor voltage is zero for t0. (B) What is the energy stored in the capacitor for t>0? HW03: Swati has a voltage supply that has the following start-up characteristic when it is turned on: VtV= a.What is the current through a l mH inductor that is connected to the supply for t>0? b.What is the current through a I F capacitor that is connected to the supply for t>0? Assume any initial conditions are zero. HW04: Gladys wants to connect a l mH inductor to her computer clock (square wave that has an off voltage of zero and an on voltage of 2.7 V.The clock runs at 1 GHz and has a 50% duty cycle half on.half off aPlot the current through the inductor for 10 ns. bIf the inductor can handle a maximum current of 100 mA how long until the maximum current is exceeded? HW05: John wants to connect a 20F capacitor to a current source given by i(t=200cos(200tmA.Amparo says he should buy a capacitor rated for75V or more,but he buys one rated for25V because it costs less.Will the capacitor work fine or will its maximum voltage be exceeded when it is connected to the current source? Explain your answer. In an EM wave which component has the higher energy density? Magnetic Electric They have the same energy density Depends, either one could have the larger energy density. A) A positively charged balloon is brought near an originally uncharged conductor. The balloon does not touch the conductor. Does the conductor acquire a net charge? B) A positively charged balloon is brought near an originally uncharged conductor. The balloon does not touch the conductor. Does the conductor begin to cause electric fields at points external to the conductor? Explain 2 cm if the mobility of electrons in FCC silver (Ag) is 75 cm /v. The cell parameter is 4.0862 10 determine the electrical conductivity (0) Select one: O a..0-710 O b. 0-3-10 O C.O-1-10 O d.o-5-10 Describe social identity theory, and in-group bias. According to Henri Tajfel, group membership can contribute to prejudice and discrimination, and this can even happen in what he calls "minimal groups". Explain how this happens by using the relevant concepts. an existing asset of 20000 with a corresponding liability and equity of 140000 and 60000 respectively. they borrowed money from the bank worth 40000 what is the new amount of liability Within the Discussion Board area, write 400-600 words that respond to the following questions with your thoughts, ideas, and comments. This will be the foundation for future discussions by your classmates. Be substantive and clear, and use examples to reinforce your ideas. Describe in detail the typical components that make up a microcontroller, including their roles, responsibilities and interaction with each other and the outside world. Be specific. The phenomenon of empathy, understood here to be a mechanism that allows us to ascertain the thoughts, feelings, and emotions of others, provides us with one avenue to address the "problem of other minds". While the concept of empathy has experienced a renaissance recently, the research and theoretical concepts we have examined raise the possibility that it may not actually exist. Considering the dual nature of human emotional experience (physical and symbolic) explored in the text, respond to one of the following prompts:If we accept that human emotions are constrained to that of individual experience, how might we explain the process and functioning of empathy? Be sure to consider the multiple aspects of emotions discussed in the textIf we assume the existence of empathy in humans, what limitations might such a phenomenon have in relation to the structure of human emotional experience? What impact could these limitations have on our ability to understand "other minds"? Two common waste products in many oil refineries are hydrogen sulfide (HS) and sulfur dioxide (SO), and the following reaction suggests a way to get rid of both at the same time: 2HS(g) + SO Give the mass of the solute and mass of the solvent for 215 g of a solution that is 0.75 m in Na2 CO3, starting with the solid solute.Express your answers using three significant figures. Enter your answers numerically separated by a comma. Pamela bought a cat carrier to take her new kitten, Muffinnette, to the vet. The carrier is shaped like a rectangular prism that is 15 inches long, 9 1/2 inches wide, and 10 inches tall.Which equation can you use to find the volume of the cat carrier, V?What is the volume of the cat carrier? A sampling and reconstruction system uses 10Hz Anti-Aliasing Filter samples at 10Hz and reconstructs with a 10Hz lowpass filter. Assuming all filters as ideal, which frequencies can suffer from aliasing effects, if any? ________________ is the physical differences based on geneticdifferences between females and males.A.RaceB.Sexual dimorphismC.Cultural construction of genderD.Culture Two samples of a monatomic ideal gas are in separate containers at the same conditions of pressur volume, and temperature (V=1.00 L and P=1.00 atm). Both samples undergo changes in conditions and finish with V=2.00 L and P=2.00 atm. However, in the first sample, the volume changed to 2.0 L while the pressure is kept constant, and then the pressure is increased to 2.00 atm while the volume remains constant. In the second sample, the opposite is done. The pressure is increased first, with constant volume, and then the volume is increased under constant pressure. 8. Calculate the difference in E between the first sample and the second sample. a. 2.00 Latm b. 4.50 Latm c. 0 d. 1.00 Latm e. none of these 9. Calculate the difference in q between the first sample and the second sample. a. 2.00 Latm b. 1.00 Latm c. 2.00 Latm d. 1.00 Latm e. none of these A right triangle has side lengths , , and as shown below.Use these lengths to find tanX , sinX, and cosX .