Which of the following processes will lead to a decrease in the internal energy of a system? 1- energy is transferred as heat into a system 2- energy is transferred as heat from the system 3-  energy is transferred as work done on the system 4- energy is transferred as work done by the system a) 1 and 3 b) 2 and 4 c) 1 and 4 d) 2 and 3

Q: m is 20 kJ. When the system changes from the state 2 to state one through another path the work done…

A: Option (a) 75kJ of heat from the system is correct.

Q: There is saturated water vapor at 135 ° C in an insulated, constant volume closed container. It is…

A: Given data: The temperature for the saturated vapor is T1=135°C The temperature after cooling is…

Q: 4) A piston/cylinder is arranged as in the figure below. How much work is done when the piston moves…

A:

Q: 1) If a gas is heated against a pressure, keeping the volume constant, then work done will be equal…

A: 1) The work done is given by W=P∆V, where P is pressure and ∆V is change in volume For a constant…

Q: Questions 1,2 and 3 In the figure shown, if F, 250 lb, and F₂= 200 lb, Determine the following: 1)…

A: Given data :- F1 = 250 lb                        F2 = 200 lb

Q: 1-Static : is defined as the state of equilibrium of bodies affected by a system of force does…

A: 1) option d is correct( all option).  Body in static equilibrium should have zero moment and zero…

Q: Question 5 A plate is supported by a ball-and-socket joint at A, a roller joint at B, and a cable at…

A: Option b is correct.

Q: 4. Three books (X, Y, and Z) rest on a table. The weight of each book is indicated. The force of…

A: Given, Three books having weight  WX = 4 N WY = 5 N WZ = 10 N It is asked to find force of book Z…

Q: In the following figure, we have a disk that has a force of 9.0 N. applied. The diameter of the disk…

A: Given Mass, M=50 kg Radius of disk, r= 0.060 m

Q: A heat machine takes heat from a source of 1000 K temperature and gives heat to an environment with…

A: In the given problem the unit of heat transferred from the hot source to the machine should be in…

Q: A ball with a mass of 0.8 kg is attached to the end of a 2 m long cable and rotated in a circular…

A: Given that :-  Mass of the ball (m) = 0.8 kg Length of the cable (L) = 2 m  Maximum velocity of ball…

Q: A heat machine takes heat from a source of 2000 K temperature and gives heat to an environment with…

A: here source temperature T1=1000 k   environment temperature To=550 k          heat supply…

Q: F1= 10 kN 2- 26 kN 45 F3 =8 kN 8m F4- 44 kND FS-8 kN 1] What is the resultant moment of the five…

A: (a) The resultant moment of 5 forces about A, MA+26sin604-443+8cos306-8sin308=0MA=32.364 kN.m…

Q: A gas-filled piston-cylinder unit with volume 2 m³ compressed and pressure 100 kpa. On the piston…

A:

Q: A 72 MW thermal power plant, which receives heat from a thermal source at 420℃, leaves 30 MW of heat…

A:

Q: 4. Andrew, whose mass is 60 kg, spins a ball of mass 0,4 kg on a frictionless table top with a…

A: Given: Mass of Andrew = M = 60 kg Mass of ball = m = 0.4 kg Angular velocity = ω= 5 rad/s length of…

Q: Two very small metal point-like spheres with masses 5 g and 9 g are tied together by a 8 cm long…

A: Given data: The masses of the spheres are m1 = 5 g and m2 = 9 g. The distance between two spheres…

Q: - A heat machine that can produce up to 850 kJ of work by taking waste heat from a furnace…

A: Option  E   is correct  227.8 kJ

Q: 6. A painter whose mass is m holds himself up while sitting on the modified bosun's chair assembly…

A:

Q: 2. A car accelerates uniformly from rest at point A to a speed of 30 m/s in 5 seconds along a…

A:

Q: 6. A block is pushed up a frictionless 30° incline by an applied force as shown in the figure. If F=…

A:

Q: 8. The force that keeps the body moving in circular motion is a) Centripetal force b) Centrifugal…

A: given data  Q-8 what force keep the body in circular motion. Q-9  weight = 20 N mass = 2 kg radius =…

Q: he efficiency of a thermal machine cannot have a value of 1 because   a) There is no apparent…

A: Given Data⇒ Carnot thermal machine

Q: In an auto repair service, a hydraulic platform raises a 1800kg car 1.6m. The hydraulic pump…

A: Given data m=1800 kg H=1.6 m P=950 kPa V=?

Q: 1. You drive your car starting from rest and accelerate uniformly to a speed of 27 m/s in 11 s.…

A: Kinematics is the study of motion of object in which there is no force is considered. Kinetics is…

Q: 1- is the action of one body on another. a-) Force 2- The unit of the moment of force is. a-) Kg/m'…

A: It is required to choose correct answer for each question

Q: 9. Two blocks hanging vertically are connected by a heavy uniform rope of mass 3 kg. The blocks are…

A: (9) Let be the tension T1 at the top of the heavy rope. Draw the free-body diagram of the system.

Q: A 0.04-kilogram paper cup falls from rest off the edge of a tabletop 7.8 meters above the floor. If…

A: Answer = option (B) = 2.55 J

Q: 1. How many unknown support reactions are there in this problem? 40 IMft A) Two forces and two…

A: Data given-

Q: A rigid tank contains a hot fluid is cooled and heated at the same time while being stirred bya…

A: Given Data The initial internal energy of the fluid (U1)=750 kJ Heat loss in cooling (Ql)=350 kJ…

Q: -A cooling machine has a maximum cooling capacity of 88 kW. The temperature of the freezer at which…

A: Given data as Cooling capacity (Qc)=88 kW Lower temperature (Tl)=1 °C= 274 K Higher temperature…

Q: A cylindrical tank with a diameter of 26 cm and a height of 40 cm was filled with water to a height…

A: Given data:

Q: A potential difference of 120 V is established beween two parallel metal plates. The magnitude of…

A:

Forms of Energy

Energy is described as the capability to accomplish a task, like the ability to push a block by applying force on it. It is a quantitative property that is used to accomplish work on an object.