If 10 lbs of water evaporated at atmospheric pressure until a volume of 288.5ft is occupied, how much work is done?

Q: If a moving body is decelerated by the action of a resisting force, the work done by the body is on…

A: given; is work done bye the body is on apar to its change in kinetic energy?

Q: The laptop consumed a total of 20 kW per month. This is equivalent to how many BTU/hr?

A: Given data Power (P) = 20KW

Q: 21 a 1550-kg car moving at a constant speed of (900 km/hr) Its takes (16,000W)to keep it on alevel…

A: Given data: Mass of the car = 1550 kg Speed of the car (v) = 900 km/h…

Q: Oces sure is 1.8 bar. Determine the work done. cific volume temperature and increase

A:

Q: A. Four kg of water is placed in an enclosed volume of 800 L and heat is added until the temperature…

A: The specific volume of the mixture is

Q: QI/ Four kilograms of water are placed in an enclosed volume of 1 m³. Heat is added until the…

A: Given data Mass = 4 kg Volume = 1m3 Temperature = 150 degree Celsius

Q: A horizontal force of 5.0 N is used to push a box up a ramp 5.0 m long that is at an angle of 15°…

A: If a force F is inclined at an angle θ with the horizontal, then the component of force along the…

Q: Find the work done if a force of 2 N displace crate of box by 2 m

A: Given data : Force=F Displacement=d   To find : Work done

Q: When the summation of internal forces is zero?

A: When all the external forces acting on a rigid body tend to cancel out each other, the summation of…

Q: An elevator with total mass of 1,600 kg is moving up ward with constant acceleration. A friction in…

A:

Q: The energy required to raise the temperature of a unit mass of a substance by one degre, explain it.

A: The amount of energy that is required to raise the temperature of the unit mass of a substance by 1…

Q: Boil the kettle at your home. Determine the following c) Change of internal energy of water?

A: Given Boil the kettle at your home To find Internal energy of water

Q: My desk has a mass of 165 lbm at the Earth's surface. What is its weight in pounds force (lbf) and…

A: Given data as per the question Mass of desk on earth =165 lbm Value of g on Mars =5.5 ft/s2 mass  of…

Q: QI/ Four kilograms of water are placed in an enclosed volume of 1 m. Heat is added until the…

A:

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?

A:

Q: Find the work W done if a constant force of 100 lb is used to pull a cart a distance of 210 ft.

A: Given Data F=100 lb D=210 ft

Q: 2) a 1550-kg car moving at a constant speed of (900 km/hr) Its takes (16,000W)to keep it on alevel…

A:

Q: A 10 ft chain weighs 35 lb and hangs from a ceiling. Find the work done (in ft-lb) in lifting the…

A:

Q: How many quadratic degree of freedom does water have if there is a temperature change from 300K to…

A: Water is a triatomic molecule as it consists of two hydrogen molecules and one oxygen molecule. The…

Q: Find the work done if force 11 N displace object by 1 m

A: Given data : Displacement of object=d Force applied on object=F   To find : Work done

Q: Find heat transfer between the plates in kW/m2

A: Given data; Two large parralel plates having a gap=10 mm  T1=1000K   T2=400K   ε1=0.5    ε2=0.25…

Q: A specific oil has a Gs = 0.82. Solve for it’s a) specific weight in lb/ft³ and kN/m³ and its mass…

A:

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: Determine the work done Force applied =3 N and distance move by object =1 m

A: Given data Force = 3 N Distance =1 m

Q: At a temperature of 400 F, find the size of the orifice of the pressure relief valve to be used in a…

A:

Q: What is the kinetic energy of a 3000 lb. automobile which is moving at 33 fps?

A:

Q: the rate of 0.5 kW. How long does it take for the temperature of the water to rise to 35°C if no…

A: Given: mass of water =20 kg T1=25oC rigid tank W=0.5 kW T2=35oC Heat loss =0 Cp= 4.184 kJ/kgK To…

Q: Find the work done by a variable force in two dimensions?

A: The work is said to be done by a force if force results in the displacement of the body in the…

Q: Find :1) Nth 2)Net work per kg

A:

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: Problem : What is a force of 2 kg m/s² equivalent to in newtons? What is a force of 21bm ft/s…

A:

Q: Any comparison of two quantities is a

A: Any comparison of two quantities is ratio if the both quantities is in a same units.

Q: Q2: Using a cable with a tension of 1350 N, a tow truck pulls a car 5.00 km along a horizontal…

A: Given data Tension in cable (T) = 1350N Distance (d) = 5 km = 5000m

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: A piston with area 2cm2 is moved at a speed of 1.5cm/s. What is the velocity in m/s if the outlet is…

A:

Q: A cylindrical tank with a radius of 3ft is filled with water which has a weight density of 62.4…

A: Radius= 3 feetVolume=πr2h=3.14x9x6=169.56 ft3Weight density of water=62.4 lb/feet3Weight of…

Q: 8. The specific volume of steam at atmospheric pressure and 212 deg. Fahrenheit is 26.80 ft3/lb.…

A: Given, ν=26.80 ft3/lb

Q: An airplane weighing 20,950.1 lb, at ground is flying at an altitude of 32,557.43 ft at 543 miles…

A:

Q: 2. The unit weight of water at 50 °F is 62.4 pef. If the volume of the vessel that contains water is…

A: Answer: (a) The change in volume when it is heated to 160°F is 0.080328 ft3. (b) The percentage…

Q: (a) A car with a mass of 850 kg is moving to the right with a constant speed of 1.44 m/s. What is…

A: According to the Newton Second Law of motion ,  Force is equals to the acceleration and mass of the…

Q: Find the magnitude of force if a body of 12 kg is accelerated by 5 m/s2 due to that force.

A: Given, Mass of the body = m = 12 kg Acceleration induced by the force = a = 5 m/s2   As per Newton's…

Q: What will be the potential energy of 1kg mass kept at height of 5 m. Take g = 10 m/s²

A: Given  : mass of body = m= 1 kg              height of body, h = 5 m               g= 10 m/s2 To…

Q: A car of mass 30 kg is moving on a road with 4 m/s^2 . The road exerts 35 N frictional force on the…

A: The free body diagram of the car is drawn as,

Q: However a gas does a differential amount of work δWb as it forces the piston to move by a…

A: Given Cylinder with piston To find Verify the statement differential amount of work δWb as it forces…

Q: A PISTON-CYLINDER SYSTEM CONTAINS A GAS WHICH EXPANDS UNDER A CONSTANT PRESSURE OF 1200 LB/FT². IF…

A:

Q: A hoop (ring) is rolling down without slipping an inclined plane, whose angle is 0 at the base. The…

A: Answer: The correct answer is option (b).

Q: An expandable container is filled with 28 in.3 of air and is sitting in ice water that is 32°F. The…

A:

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.