If an acceleration of 119 g is necessary to produce a part in true centrifugal casting...
If an acceleration of 119 g is necessary to produce a part in
true centrifugal casting and the part has an inner diameter of 11.1
in., a mean outer diameter of 17.2 in., and a length of 31.3 ft.,
what rotational speed is needed?
Homework Answers
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If an acceleration of 119 g is necessary to produce a part in
true centrifugal casting...
11.5 (A) (SI units) True centrifugal casting is performed hor- izontally to make copper tube sect...
11.5 (A) (SI units) True centrifugal casting is performed hor- izontally to make copper tube sections. The tubes have a length-1.0 m, diame 0.25 m. and wall thickness- 15 mm. (a) If the rotational speed of the pipe 700 rev min, determine the G-factor on the molten metal. (b) Is the rotational speed sufficient to avoid "rain"? (c) What volume of molten metal must be poured into the mold to make the casting if solidification shrinkage and solid thermal contrac-...
this questions is wrong? how did come 26here ? Metal Casting Processes in A true centrifugal...
this questions is wrong? how did come 26here ?
Metal Casting Processes in A true centrifugal casting operation is to be performed horizontally to make copper tube sections with OD = 25 cm and ID = 22.5 cm. What rotational speed is required if a G- factor of 65 is used to cast the tubing? Solution: The inside diameter of the mold D=OD of the casting = 25 cm=0.25 m. We can compute the required rotational speed from Eq. (11.5)...
Can someone help me with part B? Part A A centrifugal governor consists of a central...
Can someone help me with part B?
Part A A centrifugal governor consists of a central rotating shaft that has two thin, pin-connected rods attached to it, a heavy sphere caps the end of each rod. (Figure 1) A centrifugal governor mechanically limits an engine's speed. A part of the engine turns the centrifugal governor, and if the speed exceeds a set amount, the height of the spheres decreases the driving force of the engine by reducing the fuel fow....
18. On a centrifugal pump the velocity of the outer vane is equal to the a....
18. On a centrifugal pump the velocity of the outer vane is equal to the a. b. c. d. Mass of the fluid Speed on the spindle Velocity of the liquid to the pipe Amount of power on the motor 19. An object ejected from a spinning wheel will travel a. b. c. d. Tangential to the direction of spin At an angle proportional to the centripetal force At an angle equivalent to the radius and frequency In a direct...
Several species of mollusks and clams produce a crystalline style, a cylindrical protrusion 5.00 mm in...
Several species of mollusks and clams produce a crystalline style, a cylindrical protrusion 5.00 mm in length and 0.800 mm in diameter, in their stomach to act as a capstan and aid in the digestion process. The style is rotated about its long axis at an average speed of 12.0 rpm, and typically dissolves after 2.00 h. (a) What is the angular acceleration (in rad/s2) of the style if, starting from rest, it reaches a rotation speed of 12.0 rpm...
A machine part has the shape of a solid uniform sphere of mass 220 g and...
A machine part has the shape of a solid uniform sphere of mass 220 g and diameter 4.30 cm . It is spinning about a frictionless axle through its center, but at one point on its equator it is scraping against metal, resulting in a friction force of 0.0200 N at that point. Part A)Find its angular acceleration. Let the direction the sphere is spinning be the positive sense of rotation. Part B)How long will it take to decrease its...
I need help with parts E and G please! Part E Constants Calculate the magnitude the...
I need help with parts E and G please!
Part E Constants Calculate the magnitude the electric field in terms of a and the distance r from the axis of the tube for r >b Express your answer in terms of the variables α, r, and constants π and fo. A very long conducting tube (hollow cylinder) has inner radius a and outer radius b. It carries charge per unit length-α where α is a positive constant with units of...
Part A What is the minimum amount of 6.2 M H2SO4 necessary to produce 25.5 g...
Part A What is the minimum amount of 6.2 M H2SO4 necessary to produce 25.5 g of H2(g) according to the following reaction? 2Al(s) + 3H2SO4(aq) + Al2(SO4)3 (aq) + 3 H2(g) Express your answer using two significant figures. ► View Available Hint(s) IVALO o 1] ? V= L Submit
theavton the ump.if the absolute pressure of the liquid drops below the vapor pressure then cavitation will occur Answer B) False A) True A centrifugal pump delivers water against a net head of 20...
theavton the ump.if the absolute pressure of the liquid drops below the vapor pressure then cavitation will occur Answer B) False A) True A centrifugal pump delivers water against a net head of 20 meters and a design speed of 1100 rpm. is 10 m/s. he impeller diameter is 0.4 m. Determine manometric efficiency of the pump, if Co2 Intr E) 95% D) 92% A) 85% C) 90% B) 88% Answer In Calculate net head or effective head for Pelton...
Constants Part A A model of a helicopter rotor has four blades, each of length 3.80...
Constants Part A A model of a helicopter rotor has four blades, each of length 3.80 m from the central shaft to the blade tip. The model is rotated in a wind tunnel at a rotational speed of 460 rev/min What is the linear speed of the blade tip? ΑΣ 58.26 m/s Submit Previous Answers Request Answer X Incorrect; Try Again; 6 attempts remaining Part B What is the radial acceleration of the blade tip expressed as a multiple of...
11.5 (A) (SI units) True centrifugal casting is performed hor- izontally to make copper tube sections. The tubes have a length-1.0 m, diame 0.25 m. and wall thickness- 15 mm. (a) If the rotational speed of the pipe 700 rev min, determine the G-factor on the molten metal. (b) Is the rotational speed sufficient to avoid "rain"? (c) What volume of molten metal must be poured into the mold to make the casting if solidification shrinkage and solid thermal contrac-...
this questions is wrong? how did come 26here ?
Metal Casting Processes in A true centrifugal casting operation is to be performed horizontally to make copper tube sections with OD = 25 cm and ID = 22.5 cm. What rotational speed is required if a G- factor of 65 is used to cast the tubing? Solution: The inside diameter of the mold D=OD of the casting = 25 cm=0.25 m. We can compute the required rotational speed from Eq. (11.5)...
Can someone help me with part B?
Part A A centrifugal governor consists of a central rotating shaft that has two thin, pin-connected rods attached to it, a heavy sphere caps the end of each rod. (Figure 1) A centrifugal governor mechanically limits an engine's speed. A part of the engine turns the centrifugal governor, and if the speed exceeds a set amount, the height of the spheres decreases the driving force of the engine by reducing the fuel fow....
18. On a centrifugal pump the velocity of the outer vane is equal to the a. b. c. d. Mass of the fluid Speed on the spindle Velocity of the liquid to the pipe Amount of power on the motor 19. An object ejected from a spinning wheel will travel a. b. c. d. Tangential to the direction of spin At an angle proportional to the centripetal force At an angle equivalent to the radius and frequency In a direct...
I need help with parts E and G please!
Part E Constants Calculate the magnitude the electric field in terms of a and the distance r from the axis of the tube for r >b Express your answer in terms of the variables α, r, and constants π and fo. A very long conducting tube (hollow cylinder) has inner radius a and outer radius b. It carries charge per unit length-α where α is a positive constant with units of...
Part A What is the minimum amount of 6.2 M H2SO4 necessary to produce 25.5 g of H2(g) according to the following reaction? 2Al(s) + 3H2SO4(aq) + Al2(SO4)3 (aq) + 3 H2(g) Express your answer using two significant figures. ► View Available Hint(s) IVALO o 1] ? V= L Submit
theavton the ump.if the absolute pressure of the liquid drops below the vapor pressure then cavitation will occur Answer B) False A) True A centrifugal pump delivers water against a net head of 20 meters and a design speed of 1100 rpm. is 10 m/s. he impeller diameter is 0.4 m. Determine manometric efficiency of the pump, if Co2 Intr E) 95% D) 92% A) 85% C) 90% B) 88% Answer In Calculate net head or effective head for Pelton...
Constants Part A A model of a helicopter rotor has four blades, each of length 3.80 m from the central shaft to the blade tip. The model is rotated in a wind tunnel at a rotational speed of 460 rev/min What is the linear speed of the blade tip? ΑΣ 58.26 m/s Submit Previous Answers Request Answer X Incorrect; Try Again; 6 attempts remaining Part B What is the radial acceleration of the blade tip expressed as a multiple of...
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