HW Assignment # 1 - 2022 - key Rotary Systems

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This is Mechanical Engineering. Please answer with clear work and answers. Thank you

A dust particle is suspended in the air (floating due to a small updraft and its own low mass) when a powerful loudspeaker plays a very low note (2 Hz so it can’t be heard but you can actually see the speaker move!). How will the dust particle move as a result of the speaker 
being turned on? Question 3 options:   A)  The dust particle will move up and down.   B)  The dust particle will be pushed across the room.   C)  The dust particle will move in a circular path.   D)  The dust particle will move side to side.

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Q#01: Explain the following terms in your own words. a) Aerodynamics. b) Mach Number. c) Sub-Sonic. d) Angle of Attack. e) Thrust. f) Chord Line. g) Drag Coefficient. h) Pitch Moment. i) Wind Tunnel. j) Skin Drag.

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Write 3 car positive impact

Answer letter C. Thank you

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Mech. Engg. Dept. 4th year 2022-2023 Solar Energy Spring course MEC364 Dr. Mahmoud U. Jasim Review/Recap Sheet Q1- Answer with true or false and rewrite the false statements completely in correct form, otherwise no mark will be put on the false statements. 1 2 To represent a location on earth surface you need to define its altitude and longitude angles. 3 Solar zenith and solar incidence angles have the same value for horizontal surface. At sunset time the value of solar altitude angle is maximum. 4 The angle which represents the inclination of a given surface is the zenith angle 5 6 7 8 When the absolute value of sun-wall azimuth angle exceeds 90' this means that the sun rays are reaching the receiving plane. The solar irradiance and the solar irradiation have the same physical meaning. In the case of clear sky weather, the beam solar irradiation on a horizontal surface is less than the diffused irradiation. The total solar radiation received by a tilted surface is the same as that…

Hello please show your correct and complete solution with schematic diagram and assumptions. Thanks ASAP! Subject: Mechanical Engineering

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Pls help! ENGINEERING MECHANICS. RATE WILL BE GIVEN!  Mulitipe Choice Which of the following statements is correct?a.  All statements are correctb. A particle moving in a curved path with a constant speed has a zero acceleration. c.  A particle moving in a curved path with a constant speed has a non-zero acceleration. d.  A particle moving in a straight path with varying speed has a zero acceleration. e.  A particle moving in a straight path with a constant speed has a non-zero acceleration.

b) After leaving CBU you are running company dealing in material design, manufacturing customer has asked your company to test a few samples which you suspect to be mild steel. You have therefore asked your subordinates, technicians, to carry out these tests. Results are as shown in Fig.1. For you to write a report, which is critical if your company has to be paid, explain the following to your customer: and testing. A Curve Y Curve X Stres Fig.1: Stress-strain ourves 1) Material properties labelled A, B, C and D 2) How do you detemine the material's Young's modulus? 3) What's the difference between Curve X and Curve Y? 4) What measurements would you take if you are to determine Poisson's ratio Stress

On this engineering problem, I need help with parts b) and c). Also, this is the complete problem and not a writing assignment. Make sure for this problem you list the following: a. Known: State briefly what is known about the problem. b. Schematic: Draw a schematic of the physical system or control volume. c. Assumptions: List all necessary assumptions used to complete the problem. d. Properties: Identify the source of property values not given to you in the problem. e. Find: State what must be found. f. Analysis: Start your analysis with any necessary equations. Develop your analysis as completely as possible before inserting values and performing the calculations. Draw a box around your answers and include units and follow an appropriate number of significant figures.

Please answer all of the following

Subject Test Note: - You are attempting question 3 out of 12 The temperature at which a substance changes its phase from solid to gas is called A) Critical temperature B) Saturation temperature C) Stagnation temperature D) Sublimation temperature Answer Submit Activ Go to < BC O

Task I: You have been asked to provide a well written document that explains the concept of SI. To achieve this, the following requirements are needed: A) Define SI base unit, along with 4 units. B) How SI derived unit differs from SI base unit, along with supportive examples. C) Highlight the importance of SI prefixes in engineering field. Provide the most common prefixes, along with their notations that are used in engineering field.

I need answers to this part for a review activity.

This is the complete question and not a writing assignment. Make sure for this problem you list the following: a. Known: State briefly what is known about the problem. b. Schematic: Draw a schematic of the physical system or control volume. c. Assumptions: List all necessary assumptions used to complete the problem. d. Properties: Identify the source of property values not given to you in the problem. e. Find: State what must be found. f. Analysis: Start your analysis with any necessary equations. Develop your analysis as completely as possible before inserting values and performing the calculations. Draw a box around your answers and include units and follow an appropriate number of significant figures.

Q#01: Briefly explain the following terms. a) Mechanical Vibration. b) Frequency. c) Natural Frequency. d) Resonance e) Critical speed.

Check the incorrect statements. a) As the thickness of the specimen increases, the fracture toughness decreases. b) Hardening a material results in an increase in fracture toughness. c) Larger defects reduce the allowable stress on a mechanical component. d) Increasing temperature usually decreases fracture toughness. e) Eliminating impurities in molten metal and special powder metallurgy techniques that favor the densification of ceramics and metal alloys impair fracture toughness.

A H7/h6 hole/shaft combination denotes a) running fit c) press fit b) push fit d) locational clearance fit

LESSON: AUTODESK AUTOCAD Choose from the choices:

I need help with parts b and c (see images). This is the complete question and not a writing assignment. Make sure for this problem you list the following: a. Known: State briefly what is known about the problem. b. Schematic: Draw a schematic of the physical system or control volume. c. Assumptions: List all necessary assumptions used to complete the problem. d. Properties: Identify the source of property values not given to you in the problem. e. Find: State what must be found. f. Analysis: Start your analysis with any necessary equations. Develop your analysis as completely as possible before inserting values and performing the calculations. Draw a box around your answers and include units and follow an appropriate number of significant figures.

Create a reading outline for the given text "STRESS and STRAIN".