Physics Homework Answers & Questions

• Discussion 8.1: Digital Specifications An audio system is set with the following specifications: 20-bit 48 kHz Please calculate the following: Signal-to-noise (signal-to-error) Frequency respons
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• Discusssion: 0 dB Reference Levels Please calculate the following: In acoustics, the threshold of pain is approximately 120 dB SPL. How much pressure is this, in pascals? Using a VOM (volt-ohm meter
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• Vibration Isolation You are asked to provide vibration isolation for a fan. The motor rotates at 3600 RPM (revolutions per minute). The fan wheel is connected to the motor by a belt, allowing it to r
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• Discussion: Loudspeaker Design Loudspeakers, particularly in the "hi-fi" industry, are often designed with sharp points to rigidly connect them to the floor. Why might this not be a good idea, partic
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• (a) Read the posted NYT article on "Fukushima: When Radiation isn't the Real Risk". (b) Do a brief calculation to show how to arrive at the quoted number of expected cancers due to radiation.
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• For this week’s assignment, you will conduct a full model analysis of your room. · On paper, calculate the first two axial modes in each axis for your studio or listening space. · Scan
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• As you learned above, standing waves in strings behave differently than those in a room. Consider why the shapes of these two waves are different. What is it about a string that puts the nodes at the
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• True or false1. In 1666 Issac Newton discovered that white light is composed of all the colors of a rainbow. 2. The colors of the visible spectrum are red, orange, yellow, green, blue and violet. 3.
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• 1. In 1666 Issac Newton discovered that white light is composed of all the colors of a rainbow. 2. The colors of the visible spectrum are red, orange, yellow, green, blue and violet. 3. In 1861 James
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• 1. ASTC provides a better basis for comparison to STC, but why might NIC be more useful in real buildings than ASTC? Which one would better assess the impact of intruding sound on the occupants of the
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• Do the following calculations on paper. Scan or photograph and submit. You are building a recording studio, and want to have a high level of sound isolation between the live room and the control room
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• Different kinds of substances have different properties. Compare and contrast the electrical properties of salts, metals, and acids. Different kinds of substances have different properties. Compare an
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• Different kinds of substances have different properties. Compare and contrast the electrical properties of salts, metals, and acids. 
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• Below is the requirement and the topic and attached is my report see you can help me to revise it to get a higher mark.Option 2: Hello, I am an engineering consultant currently working on a project in
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• These are some of the questions related to mechanics. 1.1 - One stone is thrown from the top of a building (as we can see in the picture below), falling 15 meters after the building, after 5 seconds.
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• A ball is left at an angle of 25 degreeS to the horizontal from a plane at a height of 10 m with a velocity of 12m/s at what distance will the ball land On the horizontal surface At zero height?A ball
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• Complete the following problems. Scan or photograph your assignment work and submit it. 1. The TL of 10 mm thick sheet of plywood at 1000 Hz is 34 dB. Based on the Mass Law, what is the expected TL:
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• Note: Please keep the answers short (2-3 sentences max). ThxDiscussion 9.1: Subjective Evaluation of Isolation The degree of sound isolation of all materials is very frequency dependent. Spend some t
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• Assignment 7: Room Acoustics In last week's assignment, you calculated mean free path, total absorption, and reverberation time for a room that is 4 m long, 7 m wide, and has a ceiling height of 3 m.
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• Please see question below. I would like it completed in word format rather than hand written please.4(a)A vehicle of mass 1200 kg accelerates uniformly from rest to a velocity of15 m/s in 5 seconds. I
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