%°• |ı.۱۲:۲۵) العنوانонеhot small copper ball [c in kJ/kg.°C, k in W/m.°C] is suddenly placed in watermaintained at 100 °C. The convection heat transfer coefficient is h in W/m². ºC. Deriveequation to calculate the time required to reduce ball to temperature T.۲/۱|||DonoxT=TelA☑M

The problem involves a hot copper ball being placed in water at a constant temperature. The ball…

Answered: %°• |ı. ۱۲:۲۵ ) العنوان оне hot small…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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fet), force force, f 10 Newt. m2 f k, 10sec m, = 10 kg, ma= 20 kg , b= 20 Newton m/sec k, = 30 Newton kz = 60 Newton z, and z are measured with respeet to eguilibrium conditions and all imitial conditions are zero, 1) Write the Newton's second Lau for m, amd m2 2) Derive a statespace represrentation of the conditions : eystem fallowing 2a) only z, is measured 26) only z, is measured 2c) (2,-z,) is measured. un der 3) Derive the following transfor fumetione fG) z,(5) Go G,6) ? G6) ? 4) Describe a mechanical device that can be used to implement the external force fee) as shoun'a bove. 5) Using (Csim) function of MATLAB, plot z,(t), 2, (t)- =, (+)] Zz (t) and
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A food product containing a water content of 85% is frozen. Estimate the heat type products at -10 °C when 82% of the water is in its frozen state. Hot product type dry is 2.5 kJ/(kg °C) is assumed to heat this type of water at -10 °C is equal to heat water type at 0 °C, and the heat of the types of ice follow function Cp ice = 0 0062 x T frozen + 2 0649. a. Cp frozen products kJ/kg °C.
QI 1. What are the advantage to know the intensive and extensive properties? 2. The data below to help you to find analysis between elevation with atmosphere pressure and boiling point. Elevation, m 5000 10000 atmosphere pressure, kPa| boiling point, oC 54.05 26.5 83.3 66.3 3. Define the first and second law of thermodynamics? 4. What is different between control volume and control mass?
A silver cube with an edge length of 2.24 cm and a gold Substance Specific heat (J/g.°C) Density (g/cm³) cube with an edge length of 2.63 cm are both heated to gold 0.1256 19.3 84.8 °C and placed in 115.0 mL of water at 20.5 °C . silver 0.2386 10.5 What is the final temperature of the water when thermal water 4.184 1.00 equilibrium is reached? Tinal
Given: Consider an adiabatic steam turbine operating at steady-flow conditions. The known operating conditions are: Inlet conditions Exit (outlet) conditions Pressure (MPa) Temperature (°C) Velocity (m/s) Steam quality Mass flow rate (kg/s) Elevation (height) (m) 10 450 0.010 80.01 50.01 91.9 % 12.01 9.0 9.0 Required: Draw clear and consistent schematic for the problem representing the inlet and exit (outlet) conditions and label your schematic with the given conditions. Analyze the problem systematically using step-by-step CV energy and mass analyses, justify the equations, state your assumptions, and determine the following (circle your final answers): (a) The specific enthalpy values at inlet and exit of the turbine. (b) The mass flow rate of steam at exit. (c) The specific heat transfer. (d) The rate of change in the kinetic energy of the steam between inlet and exit. (e) The power output generated by the turbine. (f) The specific work output. (g) The specific volumes at inlet and…
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9:43 am Fri 24 Dec * 62% + : 0 King Abdul Aziz University Thermofluids AE300 Aero. Eng. Dept Faculty of Engineering Assignment 6 I/II law, Entropy, Cycles Handwritten assignment. Detailed answers are expected. Use your university ID. What is a pure substance? Write any four examples of pure substance. Draw tv and Pv diagram of water showing critical pressure and temperature magnitudes. Define specific heats. Differentiate between specific heats at constant pressure and constant volume. Give their examples. Write the values of cp, cv, R, and y for air and combustion products. 1. 2. 3. A 0.2 m³ vessel contains 120+last two digits kg of water at 90 ° C. Determine pressure, specific and total internal energy, specific and total enthalpy, and specific and total entropy. A vessel contains 10 kg of water at 200 kPa. Determine pressure, specific and total internal energy, specific and total enthalpy, and specific and total entropy. Consider 5 different cases/states: T= 30 ° C 4. а. b. T= Tsat…
Give True or False for the following: 1.In liquids and gases, heat transmission is caused by conduction and convection 2.The surface geometry is the important factor in convection heat transfer 3. The heat transfer by conduction from heated surface to the adjacent layer of fluid, 4. The heat transfer is increased in the fin when &> 1 5.The unit of the thermal diffusivity is m²/s 6. Temperature change between the materials interfaces is attributed to the thermal contact resistance 7. A material that has a low heat capacity will have a large thermal diffusivity. 8. Heat conduction flowing from one side to other depends directly on thickness 9.Fin efficiency is the ratio of the fin heat dissipation with that of no fin 10.The critical radius is represented the ratio of the convicted heat transfer to the thermal conductivity
Need help with engineering problem. Match the RTT term with its explanation: A: ddt(∫CVβρdᏉ) B: ∫CSβρVcosθdAout C: ∫CSβρVcosθdAin A. B. C. Match one of the following answers below to each letter. A change within the control volume Outflow of B from the ontrol volume Inflow of B to the control volume

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