A man of weight 600 N is standing on the bottom of a building of height 10 m, the energy possessed by the man is
Q: sider two systems A and B. System A contains 3000 kJ energy at 20oC, whereas system B contains 200…
A: To determine the direction of heat transfer when they are brought in contact with each other.
Q: A 0.70-kg block initially at rest on a frictionless horizontal surface is acted upon by a force of…
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Q: Does the work required to lift a book to a high shelf depend on how fast (in seconds) you raise…
A: Does the work required to lift a book to a high shelf depend on how fast (in seconds) you raise…
Q: 2- A body has a mass of 80 kg its velocity increases from 100 m's to 220 m's and its elevation…
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Q: A box with a mass of 600 kg is dragged up an incline 12 m long and 4 m high by using a cable that is…
A: Given data *The mass of the box, m = 600 kg *The height of the box, h = 4 m *The incline length of…
Q: For an energy storage capacity of 5 × 106 kWh, determine the minimum amount of water that needs to…
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Q: One kg of air expands at a constant temperature from a pressure of 800 kPa and a volume of 2 m³ to a…
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Q: An airplane weighing 19,903.13 lbf at ground is flying at an altitude of 32,247.95 ft at 591 miles…
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Q: In a thermodynamic process, pressure of a fixed mass of gas is changed in such a manner that the gas…
A: From the data given in question, The heat released by gas = ΔQ = -20 J (Heat released by the system…
Q: 350 kJ of heat is added in a piston-cylinder arrangement containing air causing it to expand in a…
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Q: The mass of a baseball is 0.843 lb. Determine its kinetic energy relative to home plate of a 90.66…
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Q: (b) from rest to a final velocity of 30 m/s
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Q: The properties of a closed system change following the relation between pressure and volume as pV =…
A: Given:PV=6P1=1.5 bar =150 KPaP2=7.5 bar =750 KPa
Q: A piston cylinder assembly contains 0.45 kg of air and is fitted with electrical resistor. The mass…
A: Given: Mass of piston = 60 kg Area of piston (APISTON) = 980 cm2 = 0.098 m2 Heat loss inside…
Q: An airplane weighing 20,896.36 lb, at ground is flying at an altitude of 31,529 44 ft at 524 miles…
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Q: 5. An ideal compressor compresses 12 kg/min of air isothermally from 99 kPa and a specific volume of…
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Q: A piston cylinder assembly contains steam. Initially, the specific internal energy (internal energy…
A: Given Data The initial internal energy is: u1=2800 kJ/kg. The Final internal energy is: u2=2500…
Q: A closed rigid container has a volume 1m' and holds air at 345 kPa and 20 °C. Heat is added until…
A: Volume = 1 m3 Pressure = 345 kpa Temperature T1 = 20 C Temperature T2 = 327 C
Q: Determine energy transferred by heat transfer during Process 3-1, if during Process 1-2, energy of…
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Q: A vertical piston-cylinder arrangement shown below with a piston mass of 60 kg with a face area of…
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Q: A system which has neither mass-5 nor energy transfer across the * boundary is called a Closed…
A: System: Anything which are kept in consideration is called system.
Q: A 175-lb man climbs a flight of stairs 12 ft high. Determine The work done on the man by gravity.
A: Workdone = mass x gravity x height mass = 175 lb = 175 x 0.453…
Q: A piston-cylinder shown below is connected with a paddle wheel coupled in a 120 kg mass. The mass…
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Q: Calculate the energy used per day (kWh) of a car with an efficiency of 8 kilometers per liter and…
A: As per given question We have to find calculate energy used per day (kwh)
Q: A gas contained in a vertical cylindrical tank has a volume of [10 + (K/100)] m3. The gas receives a…
A: Q =U + W specific work W = (P*t)/m
Q: Calculate the total potential energy, in Btu, of an object that is 20 ft below a datum level at a…
A: Given: The mass is m=100 lbm. The gravitational acceleration is g=31.7 ft/s2. The height below the…
Q: During the expansion of a gas in piston-cylinder the relation between the pressure and the volume is…
A: Given data: Polytropic process with polytropic index (n) = 1.2 Initial pressure (P1) = 500 kPa…
Q: When an object of 4 kg changes it’s velocity from 10 to 30 m/s, what is its kinetic energy change…
A: mass m=4kg initial velocity V1=10m/s final Velocity V2=30m/s To Find the kinetic energy change in KJ
Q: gas contained in a vertical cylindrical tank has a volume of [10 + (K/100)] m3. The gas receives a…
A: A thermodynamic system's internal energy is the energy that it contains. It is the amount of…
Q: A gas contained in a vertical cylindrical tank has a volume of [10 + (30/100)] m³. The gas receives…
A:
Q: A piston cylinder assembly contains steam. Initially, the specific internal energy (internal energy…
A: Given: The specific internal energy of steam, u1 = 2600 kJ/kg The heat given to the steam, Q = 90 kJ…
Q: A vertically arranged piston-cylinder assembly is filled with 6.3 kg of steam. The mass of the…
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Q: Define How to energy change of a system during a process is equal to the net work and heat transfer…
A: First law of thermodynamics said to be "energy cannot be created or destroyed" but it can transfer…
Q: 52. Nitrogen with a mass of 3.82kg expands at constant pressure. The initial pressure and…
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Q: A vertically arranged piston-cylinder assembly is filled with 6.3 kg of steam. The mass of the…
A: As per our guidelines we are supposed to do one question, kindly post the othe question separately.…
Q: the bottom of a tank containing a 3 m thick layer of mercury, a 2 m thick layer of water, and a 4 m…
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Q: 6. Determine the energy required to accelerate a 1300- kg car from 10 to 60 km/h on an uphill road…
A: Given data: m=1300 kgvi=10 km/hvf=60 km/hh=40 m Need to determine the energy required to accelerate.
Q: Work is done on an adiabatic system due to which its velocity changes from 10 m/s to 20 m/s,…
A: Given:Initial velocity. V1=10 m/sfinal velocity, V2=20 m/smass of the system, m=10 kgCv = 100…
Q: Find the potential energy stored in object Mass of object=9.55 kg Height to be raised=3.33 m
A: Given : mass of object , m = 9.55 kg height , z = 3.33 m To find : potential energy stored in…
Q: A 800 J of work is done by a system, while 500 J of heat is removed from the system.
A: Given that, Work done by the systen, W=800 J,Heat removed from the system, Q=-500 JNegative sign is…
Q: A 40-kg person is climbing 3 m up a flight of stairs in 9 seconds. How much power did they exert…
A: Power = work * time
Q: Consider an insulated system with piston and cylinder arrangement in which Oxygen gas is present. If…
A: Given data: Change in internal energy ∆U=100 kJ Need to determine the work given on the gas.
Q: Consider a hydraulic car jack with a piston area ratio of 50. A person can lift a 1000-kg car by…
A: Given data: Piston area ratio, = 50 Mass of car, F2 = 1000 kg For lifting a car a system of force…
Q: The figure shown above is a 0.5 cm², 5 kg cylinder with a moving piston attached to a spring. The…
A: Draw the F.B.D of the cylinder at the initial position. For the equilibrium of the piston in the…
Q: D. A box with a mass of 25 kg and a box with a mass of 10 kg are lifted and set on the same shelf.…
A: given data- m1 = 25 kg m2 = 10 kg to determine - energy of the two masses
Q: A closed system undergoes an adiabatic process. During the process, the system operates at the same…
A:
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- The tip of a soldering iron consists of a 0.6-cm- diameter copper rod, 7.6 cm long. If the tip must be 204C, what are the required minimum temperature of the base and the heat flow, in watts, into the base? Assume that h=22.7W/m2KandTair=21C.2.34 Show that the temperature distribution in a sphere of radius . made of a homogeneous material in which energy is released at a uniform rate per unit volume , isThe heat transfer coefficient between a surface and a liquid is 57 W/(m2K). How many watts per square meter will be transferred in this system if the temperature difference is 10C?
- Discuss the modes of heat transfer that determine the equilibrium temperature of the space shuttle Endeavour when it is in orbit. What happens when it reenters the earths atmosphere?The specific volume of nitrogen is 1.9 m3/kg at 200°C. After supplying it with energy in the form of heat, keeping the pressure constant, the volume increases to 5.7 m3/kg. Determines the final temperature in °C 55 1146 35 15A steel cube is to be heated from 120°C to an average temperature of 180°C in 45 minutes. One side of the cube is 50 cm in length. Taking the average density and specific heat of steel in this temperature range to be ρ = 7,950 kg/m 3 and c p = 0.49 kJ/kg·°C, respectively, determine a) the total amount of heat transfer to the steel cube, b) the average rate of heat transfer to the cube, C) the average heat flux.
- In an industrial process, 300 kJ of work is needed to compress 4 kg of nitrogen. During compression, 270 kJ of heat is rejected to the surrounding air. Determine the change in specific internal energy of nitrogen.A cylinder contains 0.5 m3of a gas at 1 × 105 N/m2 and 90°C. The gas is compressed to a volume of 0.125 m3, the final pressure being 6 × 105 N/m2. Determine: (a) The mass of gas. (b) The value of index ‘n’ for compression. (c) The increase in internal energy of gas. (d) The heat received or rejected by the gas during compression. (γ = 1.4, R = 294.2 Nm/kg-°C).A gas is confined in a cylinder with a diameter of 1.25 ft by a piston, on which a counterweight rests. Together, the piston and the counterweight have a mass of 250 lbm. The local gravitational acceleration is 32.169 ft/s^2, and the atmospheric pressure is 30.12 in Hg. a. What is the force in (lbf) exerted on the gas by the atmosphere, piston, and counterweight, assuming there is no friction between the piston and the cylinder? Answer: F = 2,864.2 lbf. b. What is the gas pressure in (psia)? Answer: Pabs = 16.208 psia. c. If the gas in the cylinder is heated, it expands, pushing the piston and counterweight upward. If the piston and counterweight are lifted by 1.7 ft, what is the work done by the gas in (ft-lbf)? What is the change in potential energy of the piston and counterweight? Answer: w = 4,869.1 ft-lbf, and ΔEp = 424.9 ft-lbf. traduza para o inglês: Um gás é confinado em um cilindro com 1,25 (ft) de diâmetro por um êmbolo, sobre o qual…
- The heat capacity of a liquid is 250 J/K, if its mass is 50 kg the specific heat capacity of the liquid would be 1250 J kg/ K C° 50 J kg/ K C° 125 J kg/ K C° 5 J kg/ K C°Calculate the quantity of heat to be transferred in BTU to 3 kg of brass to raise its temperature from 26.7°C to 239.9°C The specific heat of the brass is 0.394 kJ/kg k. answer in 3 decimal places.An elastic sphere with an initial diameter of 80 cm contains a gas at a pressure of 1.2 atm due to heat transfer the diameter of the sphere increases by 1.1 m. During the process the pressure of the gas inside the Sphere is proportional to the diameter of the Sphere. Determine the work done by the gas in kilojoules.