It takes 104 hours to install a heating system in an office building. Theinstallers have already worked 36 hours. How many more hours are neededto finish the installation?

Q: A photovoltaic system is installed. It is determined that the capacity factor of the installation is…

A: Here we haveCapacity per hour=7.73MWhTime span=365 days=365×24=8760 hrsThus the capacity for of one…

Q: nagine you have a house with low over the roof with a speed

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Q: A room has to be maintained at 25 deg C at all times. Assuming the outside temperature of the room…

A: GivenT1=25oC=298KT2=-5oC=268KQ=42kW

Q: Two fast-dancing people supply more energy to a room than a 1-kW electric resistance heater.

A: As per an experiment ‘Thermodynamics aspects of Biological systems’, it has been observed that a…

Q: determine optimum velocity of steam

A: Given; For a single stage impulse turbine with; rotor diameter,d =2 mSpeed,N=3000 rpmNozzle angle…

Q: A RDN B 1. Rank the three systems according to the absolute value of the net work by external…

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Q: (a) mass flow rate of refrigerant in kg/s (b) mass flow rate of refrigerant per ton of refrigeration…

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Q: Prove that internal energy is the property of the system.

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Q: When heat is added to a system, the amount of heat added can   increase the temperature.…

A: Different types of thermal processes are: Isobaric process (constant pressure) Isovolumetric…

Q: Differentiate work and heat

A: 1). Defination:- Work:- It is the energy which is transferred by means of force Heat:- kind of…

Q: A heat pump with the COP of 2.2 supplies heat at the rate of 186 kJ/min. Determine the rate of heat…

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Q: The Sahara desert with a very arid climate is one of the hottest regions in the world. Its average…

A: Given temperature  Higher temperature (Th) = 95°F = 35°C = 308 K  Lower temperature (TL) = 32°F =…

Q: A 5 lbm ball starts rolling up a 30deg incline at speed of 20 ft/s. Using conservation of energy,…

A: Given   Mass, m = 5 lbm       Angle = 30o Velocity, v = 20 ft/s Find  Power, P

Q: 5 (A) In a container there is 100°c water and vapour. If you apply more heat to the container in…

A: Dear student, we are suppose to solve only one question. Please post other question as a separate…

Q: Pls.answer thank you! Water enters the cooling tower at 55 °C and leaves at 30 °C while the heat…

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Q: 3. If a miniature engine does 520. J of work to cause a car in motion with a distance of 260, m, how…

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Q: person heats up a can of soup on a stove. If they do 200 joules of work on the soup by stirring it…

A: Given information: The work done on the soup by stirring (W) = - 200 J (“-ve” since work is done on…

Q: 5. a) Use the GREET result that well-to-pump required 1231 BTU per mile for a car, as well as the…

A: First of all, convert BTU into Joules, 1 BTU = 1055.056 J Now, it is given that 1231 BTU per mile…

Q: The net work done during a cycle is the difference between the work done by the system and the work…

A: The given P-V curve consists of two processes, 1-B-2 and 2-A-1 and thus forming a cycle.  In the…

Q: Write the mathematical form of principle of work and energy.

A: Work –It is the energy transferred from an object via the application of force along with the…

Q: It states that all kind of energy are not of the same quality.________________________

A: Given: It states that all kind of energy are not of the same quality

Q: *.He enjoys a bath in the evening have O having O to have O

A: He enjoys having a bath in the evening.

Q: You do 10,000 J of work on a system of 3.00kg water by stirring it with a paddle wheel. During this…

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Q: The population of certain city is 100,000 and the water consumption is estimated as 710 L/d. cap.…

A: Calculated average water flow  the city .

Q: Task 1 Write down the energy balance equation from the first law of thermodynamics for a closed…

A: NOTE:- As per our company guidelines we are supposed to answer only one question. Kindly repost…

Q: Positive heat is defined by energy_ the system

A: if heat is supply to the system then called positive heat   fill in the box        (supply to the)

Q: hrough a in w is a e velocity.

A: Write the expression of the steady flow energy equation. Understand that both the pressure P1 and…

Q: actual motion of the heated particles, it is referred to transfer by

A: TO determine: When heat is transferred from one particle of a body to another by actual motion of…

Q: form of energy which is contained in (possessed by) a body

A: Potential energy

Q: A car moving at a constant velocity of 45 fps passes a coffee shop. Three seconds later, another car…

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Q: 3. Steam enters a turbine with an enthalpy of 1292 Btu/lb and leaves with an enthalpy of 1098…

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Q: A 400 lbm object accelerates from 10.0 ft/s to 17.5 ft/s. How much work has been done?

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Q: A cooling tower has an efficiency of 65%. Water enters the tower at 55°C. The wet bulb temperature…

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Q: A passenger train traveled to the repair yards and back. On the trip there, it traveled 51.3 kph and…

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Q: The tyre of a parked car in a parking lot experiences

A: Answer is static friction

Q: Heat flow into a system is taken to be- and heat flow out of the system is taken as Select one: O a.…

A: Heat flows into a system means the heat is added to the system. So, it is taken as positive.

Q: A piston-cylinder assembly moves without friction between the two stoppers. The volume is 400 L when…

A: Since you have posted a question having multiple subparts. we will solve first three part for you.…

Q: PROBLEM 2. A closed system of constant volume experiences a temperature rise of 25°C when a certain…

A: The temperature rise of the system is, ∆T=25°C The heat transferred in the process is, Q=+30 kJ The…

Q: 23. What is the ability of heated bodies to create work? a. kinetic energy

A: 23. d. Thermal energy  24.  a.system

Q: A heat pump with the COP of 2.2 supplies heat at the rate of 219 kJ/min. Determine the rate of heat…

A: To find : The rate of heat transferred from the atmosphere. Given : The COP of heat pump is…

Q: 1. In a polytropic process pV"=Cif the value of n=1, determine the process. 2. In a polytropic…

A: Thermodynamic processes are divided into three categories in classical thermodynamics: (1)…

Q: 1. Define a 1-ton air conditioning unit. In terms of energy, what does the term "1 ton" mean?

A: 1) What does 1 ton mean? 1 ton in Air conditioning doesn't mean anything about its weight. This ton…

Q: [select all that apply] The total energy of a closed system can change as a result of energy…

A: As per our guidelines we are supposed to solve only one question per post if  multiple questions are…

Q: During a polytropic process, the heat absorbed or rejected is: Select one: O a. ny x Work done Ob.…

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Q: The internal energy of a system has component/s _______. *   choose.. Kinetic energy   Potential…

A: In the thermodynamics, thr internal energy of the system is the sum of the kinetic energy and…

Q: Force applied=7 N Displacement=3 m Determine work done

A: Given:F=7 Ndisplacement, x=3 m

Q: When you add heat to a system, by how much does its temperature change?

A: given: When you add heat to a system, by how much does its temperature change?

Q: The unit of work in S.I. units is .A Newton .B pound .C joule .D slug

A: