The Sl unit of both energy and work are not similar.

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: A change of the system energy, AE, can be: a) positive, b) negative, c) of any sign or zero.

A: The first law of thermodynamics states that the change in internal energy of a system equals the net…

Q: Heat is negative when energy is transferred to a system from its environment

A: Correct option is:

Q: It is the total energy of a flowing fluid on a unit-mass basis.

A:

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: piston–cylinder assembly contains 0.5 lb of propane. The propane expands from an initial state where…

A:

Q: For any cyclic process in the closed system, relationship between heat and work shall be dQ = dW…

A: Correct option: True

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

A:

Q: 3. A closed system of mass 10 kg undergoes a process during which there is energy transfer by work…

A: Given: Mass, m = 10 kg Work done by system, w = 0.147 kJ/kg Elevation, Δh = - 50m (negative because…

Q: 2.30 A closed system consisting of 14.5 lb of air undergoes a polytropic process from p₁ = 80…

A:

Q: The drag force, Fd, imposed by the surrounding air on a vehicle moving with velocity V is given by…

A: Velocity of vehicle, V=50 miles per hour =50*1.46667=73.3335 ft/s              1 mile/h=1.46667…

Q: Thermal mass is a property of the mass of a building which enables it to store:

A: Thermal Mass: The ability of a material to absorb and store heat or thermal energy is a Thermal…

Q: Sketch the cycle on ap−vdiagram. Considering a mass of air ofm= 0.5 kg, andassuming air as ideal…

A:

Q: The properties of a closed system change following the relation between pressure and volume as PV=…

A: Closed system is system in which mass is not allowed to flow but the energy in form of the heat or…

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

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: The temperature of a system rises by 130°C during a heating process. Express this rise in…

A: Given: The temperature rise of a system is T1=130°C. The unit conversion factor from Celsius to…

Q: In a bike, the is converted into power. O A. kinetic energy O B. heat energy O. work energy O D.…

A:

Q: 4. An object initially at an elevation of 5 m relative to Earth's surface with a velocity of 50 m/s…

A: Finding change in total energy change brought by the work done

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

A:

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

A:

Q: In rectilinear motion of a particle, the work is equal to the change in the .kinetic energy of the…

A: Work energy principle for rectilinear motion, For particle if it performs rectilinear motion under…

Q: 1. (i) A can of soft drink at room temperature is put into the refrigerator so that it will cool.…

A: i) A can inside the refrigerator is a part of refrigeration system in which refrigerant circulant…

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: Given: Four masses m, m, m, and m, are 300 kg, 400 kg, 320 kg, and 340 kg respectively. The…

A:

Q: A closed system consisting of 2 lb of a gas undergoes a process during which the relation between…

A: a)  density is calculated using 1/v1 and 1/v2 volume = mass/density b) P1V1n=P2V2n

Q: The flow of energy into and out of a system is known as

A:

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: 1- The newton's second law is (a) F= ma (b) M =Fd (c) N.M 2- The unit of mass is: (а) Kg (b) L (c) S

A: (a) F = ma (a) Kg (a) N/m2 (a) N (a) F.d

Q: The rates of energy that can be transferred from one system to another is due to difference in the

A: 1) The rates of energy that can be transferred from one system to another is due to difference in…

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: What is the overall change in potential energy express in MN-m, of an automobile weighing 1500kg in…

A:

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

A: Potential energy

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

A:

Q: In any process where heat is added to the system and work is done by the system,the net energy…

A: This question is from thermodynamics fist law.

Q: The drag force, Fd, imposed by the surrounding air on a vehicle moving with velocity V is given by…

A: Given data: Cd=0.28A=27 ft2ρ=0.075 lb/ft3V=30 mph Need to determine the force and the power required…

Q: "Heat and work are not mutually convertable in the system

A: Given: To define: Heat and work are not mutually convertible in the system it states: And the type…

Q: A 10 lbm object is acted upon by a 4.4 lbf force. What acceleration in ft/s does the object possess?

A:

Q: The system total energy is always conserved, when (mark all): a) a closed system undergoes a…

A: First law of thermodynamics states that energy can neither be created nor destroyed, rather it…

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: A fixed mass of gas undergoes changes of pressure and volume as shown below. R. P

A: Givenalong path PQRQPQR=8kJWPQR=3kJalong path PSRQPSR=?WPSR=1kJ

Q: A closed system loses energy by heat transfer at the rate of 10kJ/s. Write the energy balance for…

A: A closed system loses energy by heat transfer at the rate of 10kJ/s. Write the energy balance for…

Q: The energy possessed by a body by the virtue of its motion is called ______

A:

Q: 1- Conservation of mass 2-Gravitational Energy. 3-Internal Energy....

A: Given Conservation of mass Gravitational energy Internal energy To find Definition

Q: Mechanical Efficiency is the ratio of

A: Correct Answer is Option a) Theoretical torque/Actual torque.

Q: A vertical piston-cylinder assembly contains 0.5 kg of water. Initially, the piston is resting…

A: Disclaimer: Since you have posted a question with multiple subparts we will solve the first three…

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

A: Given:F=7 Ndisplacement, x=3 m

Q: Question No. 14 A body of mass 25 g has a momentum of 0.4 kg-m/s. Find its kinetic energy. O4.8 J O…

A: Given data m = 25 g = 0.025 kg   ( m = mass ) m.v = 0.4 kg.m/s       ( m.v = momentum ) Find Kinetic…