A rocket engine burns 8.5kg of fuel and oxidizer per second, and combustion gases exit the rocket at a velocity of 565m/s relative to the rocket, at a pressure approximately equal to the surrounding atmospheric pressure. Find the thrust produced by the rocket engine. O 3250N 2500N O 4802N O 2750N
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- a) Calculate the partial pressure of oxygen in the air at 100 kPa if nitrogen has a partial pressure of 82 kPa and carbon dioxide and water combined have a partial pressure of 0.77 kPa. b) A container of compressed helium has in it 15.0 L pressurized to about 2250 kPa at 24.5°C. How many moles of helium are in the container? c) i) Determine the volume of oxygen gas required to completely combust 5.5 mol of propane (C3H8) in a barbecue at 101.3 kPa and 28.0°C. ii) What mass of helium would be required to fill a balloon to 6.8 L at 100 kPa and 25°C?A rocket moves straight upward starting from rest with an acceleration of 29. m/s^2. It runs out of fuel at the end of 4.00 s and continues to coast upward reaching a maximum height before falling back to earth. a) Find the rockets velocity and position at the end of 4.00 s b) find the max. height the rocket reaches c) find the velocity the instant before it hits the ground.Water flows out of a hemispherical tank at the constant rate of 18 cu cm per min. If the radius of the tank is 8 cm, how fast (cm/min) is the water level falling when the water is 4cm deep?A. -0.1491 C. -0.1194B. -0.1941 D. -0.1149
- A cylindrical tank with flat ends has diameter of two meters and is 5m long. It is mounted on a pedestal with axis parallel to the ground. It is filled to a depth of 1.5m. Find the volume of fuel in the tank in liters. A. 12650L B. 11470L C. 10640L D. 13420LWater leaving the nozzle at a velocity of 4350 m/min with a volume flow rate of 0.736 m³ . if the density of water is 0.000997 kg/cm³ . How will you determine the potential for power generation in a hydraulic turbine .A vertical circular cylindrical tank 3.0 m diameter contains water. If the surface is 7.0 m above 10 cm diameter orificice (Cv=0.98, Cc=0.61), determine the time for the velocity of the issuing jet to change from 10 m/s to 7 m/s. 435 seconds 474 seconds 415 seconds 460 seconds
- An average table tennis ball has a diameter of 3.812cm. And a mass of 2.676 grams. Assuming that air buoyancy is included, what will be the density of air (in kg/m^3) needed to make the table tennis ball is a depth of h = 7.032 mm., in a liquid with specific gravity of 1.007? Neglect any temperature change that could after the density of air. Assume the ball to be a sphere.An average table tennis ball has a diameter of 3.809 cm. And a mass of 2.655 grams. Assuming that air buoyancy is included, what will be the density of air (in kg/m^3) needed to make the table tennis ball is a depth of h = 7.009 mm., in a liquid with specific gravity of 1.038? Neglect any temperature change that could after the density of air. Assume the ball to be a sphere.Civil engineering: Energy Please solve the problem clearly , don't use previously solved solutions. I am asking this for a second time. Hope you understand Question: The atmosphere is stable with a lapse rate of -0.2 degree C/100 m. The surfaces air temperature is 15 degree C. A parcel of air is released at the ground with a temperature of 25 degree C. Calculate the maximum mixing height, in m.
- A cylindrical tank 1m in diameter and 3m tall weighs 3.86kN. Given: ylead = 100kN/m3. Which of the following most nearly gives the weight of the lead that must be placed inside the tank to make the tank float vertically with 2.50m submerged in water?A circular cylinder 400 mm in diameter and 750 mm long has 600 mm of its length submerged in kerosene (S.G. = 0.823). What is the specific weight of the cylinder? a. 1.86 KN/m° C.) 0.608 kN/m3 b. 6.45 kN/m3 d.) 0.805 kN/m3A cylindrical tank 1m in diameter and 3m tall weighs 3.86kN. Given: ylead = 100kN/m3. 14. Which of the following most nearly gives the weight of the lead that must be placed inside the tank to make the top of the tank flushed with water surface?