You are an astronaut “floating” in space on an EVA in LEO while working on the international space station. One of your objectives is to test a new personal thruster device. A small nozzle (3” dia.) attached to your space suit exhausts compressed nitrogen gas at a temperature of 250 K and pressure of 0.1 atm with an average exhaust velocity of 400 m/s. What will be the resultant force from the thruster? What will be the resultant acceleration? Do you think this device will provide appropriate acceleration for your mission?

Q: List at least two common examples of fans, of blowers, and of compressors.

A: Step 1: Fans: Fans generally have a compression ratio ranging from 1 to 1.11. Common examples of a…

Q: A pump delivers 10 L/min with a pressure rise of 80 bar. The shaft speed is 1420 rev/min and the…

A:

Q: The altimeter on a low-speed Cessna 172 reads 8,000 ft. By an independent measurement, the outside…

A: The true velocity of the airplane is 519.6 ft/sec.

Q: What horsepower is required to isothermally compress 755 cu.ft. Of air per minute from 14.7 psia to…

A:

Q: A 50 litre tank takes 4 minutes to fill with petrol (density 733 kg/m3 ) through a nozzle of…

A:

Q: 2.106 The pressure, temperature, and velocity of a high speed gas flow are 100kPa, 100 °C, and 930…

A: A point is called stagnation point when the velocity of flow is brought to zero adiabatically. The…

Q: A compressor takes in air at a pressure of 67 kN/m2 . The pressure of the air at exit from the…

A: Given data:- A compressor takes in air at a pressure (P1) =67 kN/m2The pressure of the air at exit…

Q: Air, at po = 160 lbf/in² and To = 300°F, flows isentropically through a converging-diverging nozzle.…

A: The pressure of the air at stagnation, The temperature of the air at stagnation,The cross-sectional…

Q: A small rocket is fully loaded with fuel and oxidizer with a total mass of 500,000 kg. 80% of that…

A: Given-Information:- Total mass, m = 500,000 kgFuel+oxidizer = 80% massMass Flow rate = 2300 kg/sExit…

Q: A crew return vehicle designed to launch humans from the surface of Mars to a low-Mars orbit…

A: Given: OF=2.8 Final dry mass = 17 metric tonn incremental velocity = 4000 m/s Isp = 380 s To find:…

Q: Professor Modyn uses liquid methane for a cryogenic process. The critical temperature of methane is…

A:

Q: The altimeter of a high speed business aircraft reads 3900 ft. A pitot tube situated on the fuselage…

A: Given; altitude, h = 3900 ftp0=2620 psf

Q: An aircraft is flying at a speed less than 100 meters per second in sea level. Which of the…

A: Solution: Given Data: *The velocity of the aircraft is, V=100 m/s   To Find: Whether the given…

Q: In a three-stage compression system, air enters the first stage at a pressure of 100 kPa and a…

A: Given-

Q: essor cascade results suggest that the stalling lift coefficient of a cascade sed as 3 CL = 2.2, he…

A: In first step we will draw velocity triangle diagram.             whereC1=Velocity at…

Q: Natural gas at 70°F is flowing at a steady mass rate through a steel pipe with an inside diameter of…

A:

Q: An internal combustion engine of a car is operating at a brake power of 150 kW. The indicated…

A: Internal Combustion (IC) engines are a important part of modern mechanical engineering, powering a…

Q: A centrifuge with a diameter of 1.2 m and a height of 40 cm must spin at what rpm. For a suspension…

A: Given : Mass density - 1250 kg/m3 D - 1.2 m  h = 40 cm = 0.4 m Q = 100 L/min = 0.001667 m3/s μ=0.88…

Q: 1. For ramjet, scramjet and turbojet engines, first expression for propulsive efficiency: Mp 2uT…

A: Given: Inlet velocity = u Exit velocity = ue Thrust = T

Q: The diagram below shows a jet striking a flat plate inclined to the direction of flow. If the jet is…

A:

Q: 1000 kg car requires eight seconds to change its speed from 0 km/h to 140 km/h. What is the powered…

A: Given: m= 1000 Kg u= 0 km/h =0 m/s v= 140 km/h = 38.89 m/s

Q: The pressure ratio across a normal shock wave is given by the following equation: P2 P1 P2 P1 Show…

A: The given relation to be proven is : P2P1 = γ+1γ-1ρ2ρ1-1γ+1γ-1 - ρ2ρ1

Q: Calculate the speed of sound for the U.S. standard atmosphere using c = √kRT , where c represents…

A: In excel sheet For the speed of sound in m/s enter on the first row and 3 column…

Q: Explain how the following jet engine works. Refer to each section of the engine and explain the…

A: In the above jet engine starting from the leftmost corner, the working of a jet engine can be…

Q: In a local bar, a customer slides an empty beer mug down the counter for a refill. The height of the…

A:

Q: A centrifugal pump operating under steady flow conditions delivers [2000 + (162/10)] kg/min of water…

A:

Q: In a convergent divergent nozzle if a shock wave is forming before the exit of the nozzle, it means:…

A: To choose: The correct option. Explanation: In a convergent-divergent nozzle, shock waves appear…

Q: Describe the regulatory standards and guidelines governing the design and operation of pressurized…

A: ASME Boiler and Pressure Vessel Code (BPVC): The BPVC, which was created by the American Society of…

Q: Show that the theoretical head produced by a centrifugal pump can be expresses as H= R₁ - K₂Q U₂…

A:

Q: With a flow rate of 50 kmol/hour, air is compressed from P 1 = 1.2 bar pressure to P 2 = 6 bar…

A:

Q: Methane is flowing through an insulated 15-cm diameter pipe. The entering conditions are kPa, 100°C,…

A: Given data,d=15cmf=0.023P1=600kpaT1=100°Cm=5kgs

Q: For Air: y = 1.4 Question B1 a) With the aid of sketches give a clear account of the operation of…

A: To calculate the mass flow rate, calculate area ratio, back pressure drawing

Q: The current emissions standards for new railway Diesel locomotives limit CO emissions to 1.5…

A: Given: Co emission standard for new railway diesel locomotives=1.5 g/bhp-hr bhp of…

Q: ind the pressure in cm of water

A: Given: Q1=5.226 m3/s P1=h1=6.895 cm N1=450.941 rpm P1=3.97 kW Q2=9.15 m3/s To determine:  The…

Q: Design a rocket nozzle, knowing that you have a chamber pressure of 6.28 MPa, mass flow rate of…

A:

Q: Gas enters the rotor of an axial turbine stage at a speed of 520 m/s with a flow angle of 65°. The…

A:

Q: A straight horizontal pipe 100 mm in diameter terminates in a short, tapering nozzle from which a…

A:

Q: Indicate whether the following statements are "True" or " False": 1- The saturation pressure of…

A: Given problem is

Q: The airduct shown below has a slanted exit, the dimension of which is 2 inch by 3 inch. Air is…

A: To obtain the solution to the above question, we must apply the ideal gas equation, which is as…

Q: A solid propellant rocket motor was tested at sea level and following data were obtained: Propellant…

A: according to the given detail

Q: In an internal combustion engine, air at 1 atm and temperature of about 20°C is compressed by the…

A:

Q: 5. Typical cruising speeds and altitudes for three commercial aircraft are:

A:

Q: The total temperature and total pressure (absolute) in the reservoir of a converging-diverging…

A: The test section area, mass flow rate, pressure, temperature, and airspeed. Given: The temperature…

Q: We want to create a converging nozzle. The nozzle will be connected to a shop compressed air system…

A: a) When    Me = 0.3 Tank Pressure (P0) = 107.54 KPa Inlet Mach number (Mi) =0.071 Volume flow rate…

Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.