A domestic refrigerator is loaded with food and the door closed. During a certain period the machine consumes 1 kWh of energy and the internal. energy of the system drops by 5000 kJ. Evaluate the net heat transfer for the system.
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Q: 7. What is the potential energy of the 100-N block? 3 2 m Datum a. 50 J b. 100 J
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A: Given data- Power (P) = (R+2.5)kW=(83+2.5)kW=85.5kW Time (t) = 5.5 hours Mass of water (m) = 350kg…
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A: Thermal mass is the ability of a material to absorb and store heat energy and defines a material…
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A: Given: The ionization constant for water (Kw) is 9.311 × 10−14 at 60 °C. On Calculating the value…
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A: Given data; Potential difference, V=146 V Current, i=12.8 A H=60.8 KJ
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A: Discharge, Q=13m3sec width of rectangular channel=7.5 m velocity of channel=1.5msec Now we know…
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A: Given: Weight of metal ball = 25 gm Temperature = 200°C Energy given to metal ball = 2330 J
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Q: A diesel engine required 9,800 kJ of heat to produce 1,800 kJ of power. What is its efficiency?
A: Given data, Power input = 9800 kJ Power output = 1800 kJ
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A: Option d is correct. Zero joule
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A: Given: The energy absorbs by the engine is 100 J. The energy released by the engine is 60 J. The…
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A: Given: The energy is 72.7 J. The mass is 13.1 g. The initial temperature is 23.5 oC.
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Q: Motor unit A is used to elevate the 300-kg, cylinder at a constant rate 2 m/s. If the power meter B…
A: Solution-The given values are as followsThe motor unit A is used at =300kgConstant rate =2m/sThe…
Q: A turbine is rated at 700 hp when the flow of water through it is 0.72 m3/s. Assuming the efficiency…
A: Answer: We are given Power (P) =700 hp Flow rate(Q) = 0.72 m3/s Overall Efficiency(ηo) = 78%
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A: Data given: Dimensions: Height (H) = 65 cm Depth (D) = 55 cm Width (W)= 85 cm Surface temperature =…
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A: Given: The current is 15 A. The voltage line is 240 V. The energy is 60 kJ.
Q: A domestic refrigerator is loaded with food and the door closed. During a certain period the machine…
A: Given:- The energy consumed by the machine for a certain period = 5 kWh The internal energy of the…
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A: Mass of material = m = 10 kg = 10000 g Rise of temperature = ∆T = 2°C Heat required = H = 2000 J…
Q: power (in kW) recovered in the turbine
A: Given:' Density of water= 9810 N/m3 = 1000.34 kg/m3 g = 10 m/s2 Efficiency of turbine and pump = 70%…
Q: An automobile has an average power of 22 kW/hour for a trip. By a thermal efficiency of 30% how much…
A: The given data is: P=22 Kw/h n=30 % Assuming one hour ,P=22 Kw n=P/QT QT=22/0.8 QT=73.83 Kw
Q: A motor pumps 1000 kg water 10 m vertically upwards in 1 minute. Calculate its power.
A:
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A: Given - Efficiency- 95% To find - Estimste the monthly and annual gas consumption.
Q: A small electric immersion heater is used to heat 71 g of water for a cup of instant coffee. The…
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A: Consider the free body diagram;
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Q: Steam enters a turbine at 30 bar, 300°C (u = 2750 kJ/kg, h = 2993 kJ/kg) and exits the condenser as…
A: Steam enter H enter= 2993kj/kg Steam exits Hexit = 226kj/kg Heat loss in surrounding = 50kj/kg Work…
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A: Given data: Potential energy ar height 30m (PE)30 = 1470J Kinetic energy at height 30m (KE)30 = 0…
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- 2.Please write down sub-disciplines of civil engineering and explain two of them briefly.In your on idea, as future professionals how would contribute and address major challenges in Civil engineering practice. Make it briefly.Subject: Engineering Management, Chapter 3 Planning Technical ActivitiesQuestion: What is Planning Technical Activities, its importance and how is it relevant to civil engineers?
- EXPLAIN IN YOUR OWN WORDS, THE IMPORTANCE OF BASIC MECHANICAL ENG`G TO YOUR CAREER AS A CIVIL ENGINEER.What are the current career accomplishments and contributions of civil engineering, considering the structural field or specialty. Elaborate.3 civil engineering-related simple inventions that are now in use. Mention their concepts and flaws
- Engineering design can be undertaken for many different reasons, and it may take different forms. List two (2) forms of Engineering Design and briefly explain each of them.What are the importance of the following skills as a mechanical designer? Explain each. Sketching, technical drawing, and 2D and 3D computer-aided design. Properties of materials, materials processing, and manufacturing processes. Applications of chemistry such as corrosion protection, plating, and painting. Statics, dynamics, strength of materials, kinematics, and mechanisms. Oral communication, listening, technical writing,and teamwork skills.civil engineering deal primarily with planning, design and construction of all the nation's constructed facilities, Task - briefly explain what these facilities are' -their importance to the nation and -the knowledge disciplines one requires to plan and construct each of these disciplines
- Please write down the definition of civil engineering as a profession and give a brief information about the history of civil engineering. Also, what does a civil engineer do?Due to the effects of natural disasters like typhoons, what civil engineering branch is needed and important? Explain Briefly. Thank you! * Choose only one of the following branches: Construction Engineering Transportation Engineering Water Resource Engineering Environmental Engineering Municipal Engineering Coastal Engineering Material EngineeringWhat is the definition of civil engineering?