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: Solve the following problem using Geometric Programming In a three-stage compression system, air…

A:

Q: [3] An engineering student considers using a fan as a drone model. He plans to face the box-enclosed…

A: Given: Blade span diameter is: d=1 m The weight of the system is: w=2.3 kgf=22.56 N Air density is:…

Q: Nitrogen gas is compressed . Pressure rises from 100 kPa to 1500 kPa. Initial temperature of 25 deg…

A:

Q: An ideal gas passes a diffuser. At the diffuser inlet, the temperature is T1 = 350.00 K, the…

A: Given        Pressure, P1 = 100 kPa  Temperature, T1 = 350 K   Gas constant, R = 0.287 kJ/kg.K Find…

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: Look up the word affinity in a dictionary. Why do you suppose some engineers refer to the…

A: The word "affinity' means likeness or close resemblance.

Q: If this tank/converging-diverging nozzle combination was to be used as a rocket's propulsion unit,…

A:

Q: Consider a turbojet-powered aircraft flying with a airspeed of 250 mi/h at an altitude of 20,000 ft.…

A: Given data: Airspeed = u  = 250 mi/hr = 111.76 m/sAltitude = 20000 ft Inlet Area = 15 ft2 = 1.3935…

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

A: Given-

Q: At a particular operating condition, an axial flow compressor has a reaction of 0.6, a flow…

A: Given: The reaction of the axial flow compressor is R = 0.6. The flow coefficient is φ = 0.5. The…

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: An office room has dimensions of 8x3x7 m. It is needed to ventilate the room air in 15 minutes. To…

A: GIVEN:The dimensions of the room 8X3X7 m Time= 15 min=900 sec Velocity=0.7 m/sec   TO FIND:…

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 gas turbine stage has an initial absolute pressure of 350 kPa and a temperature of 565°C with…

A: Solution: Given Data: Pi=350 kPaTI=565 Crm=0.36 mrh=0.31 mN=8000 rev/minCp=1.148 kJ/kgoCγ=1.33   To…

Q: Problem 2. A small rocket motor, that uses hydrogen and oxygen for the fuel, is operated in a…

A: Given, The stagnation temperature, T0=1500 K The stagnation pressure, P0=8 MPa=8000 kPa+101.325…

Q: A jet-propelled airliner flies at an altitude of 15,000 m and a velocity of 265 m/s. What is the…

A: Given:The jet flies at an altitude of The velocity of flight, The airflow to each engine at zero…

Q: [3] A horizontal water jet of constant velocity V impinges normally on a vertical flat plate and…

A:

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: 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: PROBLEM 8. The total weight of space shuttle including its payload mass and the empty external tank,…

A: Given data The total weight of space  mo = 428,100 lb. The external tank and the two solid rocket…

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: 8.3. In Prob. 8.2, if the pressure is increasing in the direction of the flow at a rate of 0.10…

A: Approach to solving the question:To determine the velocity U given that the pressure is increasing…

Q: An ideal gas passes a diffuser. At the diffuser inlet, the temperature is T1 = 350.00 K, the…

A: Given        Pressure, P1 = 100 kPa  Temperature, T1 = 350 K   Gas constant, R = 0.287 kJ/kg.K Find…

Q: Two gaseous stream containing the same fluid enter a mixing chamber and leave as a single stream.…

A:

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.