The fuel consumption of an automobile is 14 km/ L.The fuel consumption, in miles per gallon, is?

Q: At a certain elevation, the pilot of a balloon has a mass of 125 lb and a weight of 119 lbf. What is…

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Q: A gas with a density of 1.0 lb/ft3 weighs 4.0 lbf on the Moon, where the acceleration of gravity is…

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Q: The force, in kN, acting on one of the 1.5-m sides of an open cubical water tank (which is full) is:…

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Q: Two pipes A & B carries an oil of specific gravities 0.9 & 1.2 respectively.  The center of the pipe…

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Q: When the system is completely isolated from its surroundings so that there is no heat transfer, this…

A: Open thermodynamic system is a system in which both energy and mass can cross the boundary of the…

Q: Mass density of water is kg/ m3 a. 9810 b. 9.81 С. 1 d. 1000

A: Given Data⇒ Mass density of water

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

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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: Two pistons of a hydraulic lift have diameters of 60 cm and 5 cm. What is the force exerted by the…

A: Given data: The diameter of the larger piston is dl = 60 cm. The diameter of the smaller piston is…

Q: Why did you multiply 249.57 gal/s by the density of water, 8.34 lb/gal? 249.57 gal/s is the flow…

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Q: A vessel with 24 in diameter and 36 in in height is filled with a liquid X whose density is 50…

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Q: Q2A: A large fraction of the thermal energy generated in the engine of the car is rejected to the…

A: Before analyse , let use compare the difference between open system and close system . In open…

Q: The atmospheric pressure in a location is measured by mercury ( density of 13,600 kg/m^3) barometer.…

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Q: The average atmospheric pressure on earth is approximated as a function of altitude by the relation…

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Q: What is the mass of a body in grams if it has a kinetic energy of 94.6N-m when moving at 2.25m/s?

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Q: Power is a Scalar Quantity

A: Yes, Power is scalar quantity. It is true.

Q: Two pistons of a hydraulic lift have diameters of 4 m and 2 m. What is the force exerted by the…

A: Given data: The diameter of the large piston is D = 4 m. The diameter of the small piston is d = 2…

Q: A fish tank that contains 60 cm high water is moved in the cabin of elevator. Determine the pressure…

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Q: weather balloon is 3 m in diameter and contains helium at 27 C and 101 kPaa. The balloon rises to an…

A: Given:d=3 mT1=27°C =300 KP1=101 KPaT2=-17°C =256 KP2=15 KPaR=2.07767 KJ/Kg.K

Q: car batteries are rated in ampere-hours . to what physical quantity do ampere-hours coresspond…

A: Since the car batteries are rated in ampere-hours, it corresponds to the total charge of the…

Q: The potential energy of water in a cylindrical tank located on top of a building 15m high, is 150…

A: To find out the weight of the tank  P.E=mgh 150000=W(15) W=10,000N

Q: A car moving at 72 km/hr s

A: Option a is correct answer= 10m/s^2

Q: A 48 HP motor is used to drive an air compressor.  The compressor efficiency is 80 %  Determine…

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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: Suppose that a person eats 2387 Calories per day. Convert this amount of energy into unit kJ.

A: A person takes energy per day E=2387 Cal. The unit conversion factor to convert Calories into…

Q: KPa and Is a erature is 696.54 C. Determine the change of internal energy in kJ.

A: GivenVolume=10m3Pressure P1=569.16kpaInitial Temperature T1=429.91KFinal…

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: The mass of an airplane at sea level (g = 32.174 ft/s2) is 10 metric tons. Find its (a) mass in…

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Q: The quality % (0 to 100) The specific volume in m3/kg, The density in kg/m3

A: quality = mass of fluid / total mass of mixture so quality = 15%

Q: Why power is a scalar quantity?

A: There are two types of quantities first is vector and second is scalar. The vector quantity is that…

Q: The components of energy for flowing fluid flow through an inlet are mV² (KE), mgz (PE), and what?

A: The components of energy for flowing fluid flow through an inlet are mV2 (KE), mgz (PE), and what?

Q: 2. calculate the work needed to lift a 20. kg sack of rice vertically at 6.5 m?

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

Q: 7. Two parallel plates separated by 15.5 cm move with a relative velocity of 7 m/s. How much force…

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Q: Find the weight of a 50 kg person in N, kgf, lbf, and poundal at standard conditions if 1 kgm = 2.20…

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Q: In an undisturbed airstream, where pressure is 14.7 lb/in² and temperature is 59F, the velocity is…

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Q: The power in the wind increases with the following EXCEPT: O a wind velocity O b. area of wind…

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Q: Which of the following is intensive property heat: work, internal energy, specific heat, heat…

A: Explanation: Intensive property: The properties which are independent on mass of the system is…

Q: Air G 4.2 3.2 B EF 3.0 Liquid A 2.7 ID rl dn 1.60

A: Given that, Pressure at B=-0.15 bar,Relative density of fluid upto D=1.6 For the given gauge the…

Q: The mass of a baseball is 1.331 lb. Determine its kinetic energy relative to home plate of a 95.27…

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Q: A car can accelerate at 4 m./sec.. How long will it take to reach 90 (ans.: 6.25) km./h. from rest ?

A: Given    Acceleration, a = 4 m/s2           Velocity, v = 90 km/h                            = 25…

Q: For the given velocity triangle, if you know that at the inlet, alpha is -20, beta is 59, the…

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Q: If the mass of an object is 10 lbm, what is its weight, in lbf, at a location where g = 32.0 ft/s2 ?

A: Given Mass m = 10 lb m G = 32 ft/s   Required : - weight in lbf

Q: As shown in the figure below, a hydraulic system has two pistons of different diameter and uses a…

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Q: For the given velocity triangle, if you know that at the inlet, alpha is -20, beta is 59, the…

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Q: Q2 Calculate the density of the air in a room whose Dimensions are (4 m, 5 m, 6 m) and have mass 140…

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Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.