A spherical submarine with radius of 4m has a mass such that it is neutral buoyant. it wants to move towards the bottom of the sea at 0.3m/s. how much extra mass does the submarine need to take?

Q: A 1.5m semi cicular gate is submerged in oil having an SG of 0.95. its base is 2m from the surface…

A:

Q: Find the position of center of pressure (in m) on a triangular plate of base 2 m and height 3 m…

A:

Q: A vertical gate 6 m x 6 m holds water on one side with the free surface at its top. The moment about…

A: Height of the gate is, h=6 m. Breadth of the gate is, b=6 m. Area of cross section of the vertical…

Q: A spherical submarine, with radius 4 m, has mass such that it is neutrally buoyant; i. its average…

A:

Q: The zoo is building a new polar bear exhibit, and wants to put a semi-circular window in the…

A: Consider the center of the semicircle as the origin and the x-axis along the bottom of the dam.…

Q: An open cylindrical tank of having a diameter of 4ft and a height of 6 ft is partially submerged in…

A: Given data: The diameter of the cylindrical tank is D = 4 ft.The height of the cylindrical tank is h…

Q: 2. A spherical object has a radius of 0.45 cm. The density of water is 1000 kg/m3. If the block is…

A: Given data as per question The radius of object =0.45 cm Density oof water =1000 kg/m3

Q: An oil of specific gravity of 0.8 is contained in a vessel. At a point the height of oil is 20 m .…

A: Now, the density of oil ρ = 0.8*1000 = 800 kg/m3

Q: Find the pressure at depth of 12 m in water. Take density of water 1000 kg/m3

A:

Q: Q3: A: A half circle of area made from wood, while the other half made from metal. Can you consider…

A: Centroid :- It is the location where entire Volume or Area (for 2D) of the object is concentrate.…

Q: A semicircular plate of radius 5ft rests vertically on its diameter at the bottom of a pool filled…

A:

Q: Find the hydrostatic pressure at the bottom of the container 70 cm deep, if it is filled up with a)…

A:

Q: A conical vessel is 12 ft across the top and 15 ft tall. If it contains a liquid weighing W lb/ft3…

A: The schematic diagram of the conical vessel with a ring element is as follows:

Q: If the gravity is 9.65 m/s² , find the weight in Ibf of a 3 Ibm object placed in that location.

A:

Q: Find the absolute pressure in kpa at a depth of 10 m below the free surface of oil of specific…

A:

Q: Calculate the pressure at the bottom of the spherical tank, 3.6 m in diameter, filled with peanut…

A: Write the given data: d=h=3.6 mS=0.92Po=82 kPa

Q: Density of water = 1000 kg/m³ Determine the pressure at the point 3?

A: Given data: The pressure on the point 3 due to water head can be determined as,

Q: The zoo is building a new polar bear exhibit, and wants to put a semi-circular window in the…

A:

Q: What is the specific weight of a liquid in kN/m3 with a density of 35 lbm/ft³?

A:

Q: ВЗ. A circular plate of diameter 3 m is vertically placed in water in such a way that the centre of…

A:

Q: here is a wooden Cylinder of diameter 'd' and the length '2d' floats in water with its fixes…

A: Given:Diameter of the wooden cylinder=d,Length of the wooden cylinder=2d,Specific gravity of…

Q: 3- Find the total pressure and position of center of pressure on a triangular plate of base 2 m and…

A: Given data Base (b) = 2m Height (h) = 3m Angle = 60 Distance from free surface (y) = 2.5m

Q: a vertical cylindrical tank 4.82 m. in diameter and 6.87 m. high is full of water. if the tank is to…

A:

Q: ngular gate having a horizontal base 4 ft long and an altitude of 6ft is inclined 45° from the…

A: Given data; The base of the triangular plate is, b=4 ft. The height of the triangular plate is, d=6…

Q: A tank containing water moving horizontally with a constant linear acceleration (3.5m/sec2), and…

A: This problem is related to fluid mechanics. Fluid mechanics is the subject of mechanical engineering…

Q: Gate AB in Fig. of pressure. is 1.0 m long and 0.9 m wide. Calculate force F on the gate and the…

A:

Q: A cylindrical barrier holds water, as shown in Fig. 46. The contact between cylinder and wall is…

A:

Q: A circular plate of radius 2ft is lowered to a liquid (w=1000 lb/ft^3) so that its center is 4 ft…

A: R=2 ft  since 1ft=.3048 m so R=2×.3048=.6096 mx=4 ftx=4×.3048=1.2192 mω=1000 lbft3g=32.174…

Q: A vessel of 4m cube volume contains an oil which weights 30.2 KN. Determine specific gravity of the…

A: Given data: The volume of the vessel is; V=4 m3. The weight of the oil contained by the vessel is;…

Q: 2. A triangular gate having a horizontal base 4 ft. long and an altitude of 6ft is inclined 45° from…

A: Base length of triangular gate, L=4 ftAltitude of triangular gate, h=6 ftInclination angle of gate…

Q: What would be the submerged weight (submerged weight = weight – buoyant force) of a 12m³ of steel in…

A:

Q: A plate in the shape of trapizoid with 4ft wide at the top and 2ft wide at the bottom and 3f deep is…

A: Front view of the plate:- Given data:-width at the top of the plate, b1=4ft.=1.2192mwidth at the…

Q: 2. A triangular gate having a horizontal base 4 ft. long and an altitude of 6ft is inclined 45° from…

A: Given: The base of the triangular plate is, b=4 ft. The height of the triangular plate is, d=6 ft.…

Q: 1. A body is float and submerged in sea water (s.g. = 1.03) and has a weight of 641,750 kN. If the…

A:

Q: 3. A block of wood floatsinwater with7inches projecting above the water surfoce.It is then placed in…

A:

Q: An empty 7 gal tank weighs 8 lbm. What is the total weight in Newtons of the tank plus the water…

A: Given: Volume of the tank→V=7 gal Because 1 gal volume is equal to 0.004546 m3 Hence: →7…

Q: A plate in the shape of a trapezoid with 4ft wide at the top and 2ft wide at the bottom and 3ft deep…

A: Given: Width at the top=4ftWidth at the bottom=2ftHeight of the trapezoid=3ftDepth of the trapezoid…

Q: Calculate the volume of a water cylinder with total height of 10 meters and whose diameter is 400…

A: Given Data D=400 cm=4 m H=10 m

Q: Mercury has a specific gravity of 13.6. How much bouyant force is exerted on a 100=cm3 object…

A: Write the expression of buoyant force.

Q: If an object has a density of 3.6 g/ml and you put it into water (density= 1.0 g/ml) will it sink or…

A: GIVEN DATA- A TRUE FALSE QUESTION GIVEN OF FLUID MECHANICS

Q: A vertical plate is submerged in water and has the shape as seen in the picture. Using the fact that…

A: Given data, Density of the water, ρ = 62.5 lb/ft3 To determine, the hydrostatic force in the…

Q: Q4:Calculate density of a Body that floats in water, when a floating body is 73% submerged in water.

A:

Q: The open tank shown, which has a liquid with a specific gravity of S-6.2 as shown in the give…

A: Given     Specific gravity = 6.2  Therefore                  Density = 6200 kg / m3

Q: Density of water = 1000 kg. Determine the pressure at the point 3?

A:

Q: 1.Find the volume of the fluid in cm3 with a mass of 0.31 kgm and density of 30 lbm/ft3.

A:

Q: If the bottom pressure is 1.27 [Kg/cm2.abs], find the height of the liquid with a density of 0.642…

A: Given data,  P= 1.27 kg/cm2 = 124544.5 Pa.  P is absolute pressure. D= 0.642 g/cm3 =642 kg/m3  Let…

Q: A rectangular plane, 1.2 m by 1.8 m is submerged in water and makes an angle of 30 degrees with the…

A:

Q: If the specific gravity of the unknown fluid is 11.43, what is its specific weight in lbf/ft³?

A:

Q: Figure Q3 shows a cylinder with a diameter of 80 mm and a mass of 70 g. If it is placed in the tank,…

A: Diameter = 80 mm Mass = 70 g Density of oil = 980 kg/m3

Q: If a ball has a volume of .52 cubic feet, what is the bouyant force on it if it is pushed under…

A: Write the expression of buoyant force.

Center of Gravity and Centroid

The term center of gravity indicates the position or location of a point about which the whole weight of a body or system is supposed to be concentrated, which means the whole weight of the body or system works through this point. It is closely related to mass distribution. For all positions of the body, the center of gravity would be a single point.