A steel bar having cross sectional area of 100 n mm² is subjected to a tensile force of 40 kN. Determine the tensile stress.

A Team of Engineers asked for an internal combustion engine to use it in a designed car. Your role is to describe the operation sequence of different types of available engines, explain their mechanical efficiency, and deliver a detailed technical report to show your approach in solving and discussing the following tasks and issues.  You must follow the following steps to help the team:  STEP 1  Describe the operational sequence of four-stroke spark ignition and four-stroke compression ignition engines with the aid of sketches by constructing simple sketch representing the operation and plotting the P-V diagrams for each process during the cycle to show the following:  The input and output heat and net output work The air-fuel mixture intake and exhaust gasses The spark plug when it is in the active mode

please provide a clear solution and FBD. please answer within 30 minutes, thank you!

4. the design like a piston in a pump was used in A) Tapered Channel System, B) Hinged contour, C) Blow Holes 5. The rotors typically have airfoil cross sections and operate on the principle of A) hydrodynamic lift, B) Newton's laws of motion, C) Energy, work, and their relationship 6. For piping the steam or hot water to the earth's surface, in geothermal power plants, wells must be drilled at a distance: A) 1-2 miles deep, B) 3-4 miles deep, C) 5-6 miles deep 7. The main components of a fuel cell are A) Anode, cathode and connecting wires, B) Anode, cathode, membrane and electrolyte, C) Anode, cathode, battery 8. The part of solar radiation that is utilized in solar energy systems are involve: A) Visible light, radio waves and ultraviolet radiation, B) ultraviolet radiation, Visible light and infrared, C)Gamma radiation, Visible light and infrared

MENG364 MANUFACTURING TECHNOLOGY please solve the question very quickly Student Number 124544

Why do parachutists 'hit and roll'?

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Pls heelpBlank is the time-honored tool for describing geometry

SHOW YOUR SOLUTIONS PLS, THANKS  show me how you did it so I can understand, thank you. Pls answer both, this is my last tutor question, pls. thank you. (Porosity). A dry rock weighs 240 grams and has a bulk density of 2.4 grams per cubic centimeter. When saturated with pure water at room temperature (T=25°C), it weighs 250 grams. At room temperature, the specific volume of water is 1.00295 x10-3m3/kg. Calculate the porosity of the sample. (Permeability). A cylindrical core sample of 1 cm length and 1 cm2cross-section has upstream and downstream pressures of 2 atm and 1 atm, respectively, during steady state flow of water at 0.997 g/s at room temperature. Calculate the permeability of the core. Note: Water @ 25°C, viscosity = 1 cp, density of water = 0.997 g/cm3.