The tube of a mercury barometer is 5mm in diameter. How much error does the surface tension cause in the readings ? Surface tension of mercury=540 dyne/cm. Angle of contact=135 degree.

Q: A horizontal circular loop of wire of diameter 0.020m is lowered into the crude oil form film. The…

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Q: A garden hose of inner radius 1.00 cm carries water at 3.13 m/s. The nozzle at the end has inner…

A: Given values -  Inner radius of garden hose = r1 =1 cm =1×10-2 mInner radius of nozzle at the end…

Q: A garden hose has an inside diameter of 16 mm, and water flows through it at 3.0 m/s.  At what rate…

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Q: One person's weight in air is 947 N while his weight underwater is 49 N. What is his percentage of…

A: % body fat =495ρavg-450 weight of person's in air is Wair=947 N weight of person's in water is…

Q: Oil (S=0.80) at 3000Pa flows at a constant rate of 1m³/s through the circular nozzle shown. What is…

A: To find out the net force exerted by the joint to hold the nozzle in place.

Q: What is the minimum hose diameter of an ideal vacuum cleaner that could lift a 15 kg dog off the…

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Q: Wood Values Mass (kg) Weight (N) Volume (L) Volume (m³) Density (kg/m³) 2.00 5.00 Water Values…

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Q: A hollow cylindrical copper pipe is 1.50 m long and has an outside diameter of 3.50 cm and an inside…

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Q: Calculate the Reynolds numbers for the flow of water through the following situations. You may…

A: Flow rate,  Viscosity of water,  Density of water,  Radius of nozzle,  Radius of hose,

Q: In one of the main human arteries the maximum value of the Reynolds number is 6,7. The diameter of…

A: Given:- The maximum value of the Reynolds number is 6.7  The diameter of the vessel lumen is 8,1 mm…

Q: Suppose ethyl alcohol rises 0.25m in thin -7 tube , what is the radius of the tube if the surface…

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Q: A 48kg ballerina is in a pirouette position, if her pointed shoe is in contact with the floor with a…

A: We know thatP=FAHereP=Pressure exertedF=forceA=Area

Q: 2.58 The surface tension of a liquid is being measured with a ring as shown in Fig. 2.6d. The ring…

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Q: What is the unit of relative density? A) kg/m B) kg/m2 C) kg/m3 D) It has no unit

A: The relative density is defined as the ratio of the density of substance to the density of water at…

Q: The Mariana trench is located in the floor of the Pacific Ocean at a depth of about 11400 m below…

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Q: The cross-sectional area of ​​a hypodermic syringe is 3.0 cm² and that of the needle, 0.6 mm². What…

A: Write the given values with the suitable variables. As=3 cm2=3×10-4 m2An=0.6 cm2=0.6×10-4 m2P=12 mm…

Q: The Mariana trench is located in the Pacific Ocean at a depth of about 11 000 m below the surface of…

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Q: What is the diameter of an aluminum sphere with the same mass as 26 L of water? The densities of…

A: The given data is as mentioned below, 1. Volume of water=26L 2. Density of water=1000kg/m3 3.…

Q: The viscous force on an oil drop is measured to be equal to 3.0 x 10-13 N when the drop is falling…

A: Given,

Q: In Fig. H-2, A water tank is 8 m in diameter and 12m high. If the tank is to be completely filled,…

A: Height. h = 12 m  specific weight, ƴ = 9.81 kN/m3 Inside diameter, D = 8 m  Stress, S = 40 MPa =

Q: How much space (calculated in units of m3) is occupied by a substance of weight Fg = 431.2 N, whose…

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Q: Raw milk is stored at a dairy farm in a refrigerated cylindrical vat 6.50 feet wide and 12.5 feet…

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Q: If the ball has a mass of 45 kg and diameter 32 cm, while the wire has a length of 30 cm. The…

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Q: The Mariana trench is located in the Pacific Ocean and has a depth of approximately 1.10 x 104 m.…

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Q: The closed cylindrical tank is filled with milk, for which density = 1030 kg/m3. If the inner…

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Q: What is the minimum area (in square meters) of the top surface an ice slab 0.203 m thick floating on…

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Q: A U-shaped tube holds two liquids in static equilibrium: water kg (Pwater = 1000 -) and oil of…

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Q: Q.3. A battle ship weighs 127.53 MN. On filling the ship's boats on one side with water weighing…

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Q: A syringe is filled with a fluid of viscosity 2.4 x 10^-3, and the internal radius of the needle is…

A: Write the Poiseuille’s equation. ∆P=8ηLπR4dQdt Here, The Change in pressure "ΔP" Viscosity…

Q: Let Pa represent the density of aluminum and Pf that of iron. Find an expression of the radius (ra…

A: Write the expression for the volume. Write the expression for the mass.

Q: Find the total force of water pressure exerted on the glass wall of an aquarium with the following…

A: we first need to find the pressure exerted on the cross section by the water on one side of it.…

Q: A lead cube has a total mass of 100 kg. What is the length of a side? (Density of lead is 11.3 x 10…

A: The mass of the lead cube is M = 100 kg. Assume the length of each side of the cube is a. The…

Q: A steel sphere of diameter 3 m is sent deep of an ocean where the pressure is 29,775 N/m2. If the…

A: Given Diameter = 3m So, radius = 1.5m Pressure = 29775 N/m2 Bulk modulus = 6.00 x 106N/m2

Q: A length of cable is 25 meters and has a mass of 100 kilograms. What is the density of the cable? O…

A: Given, length of the cable, l= 25 m Mass, m=100 kg

Q: Calculate the contact angle ? (in degrees) for olive oil if capillary action raises it to a height…

A: height by which oil rises in capillary tube(h)=7.08 cm=7.08 X 10-2 m radius(r)=0.100nm=0.100 X 10-3…

Q: Water from a pipe is coming at a rate of 100 litres per minute. If the radius of the pipe is 5 cm,…

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Q: A solid cube measures 26 cm on a side. If the density of the material is 343 kg/m³, what is the…

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Q: What is the minimum area (in square meters) of the top surface of an ice slab 0.441 m thick floating…

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Q: Estimate the radius (mm) of a spherical particle of density 1789 kg/m³ that reaches a distance of…

A: Here given the viscosity and density of air are 1.923 × 10-⁵ kg/m.s and 1.301 kg/m³. The density of…

Q: Mercury makes an angle of 130 degrees when in contact with clean glass. What distance will mercury…

A: Given : θ = 130 degrees d = 2 cm = 0.02 m r = d/2 = 0.02/2 = 0.01 m s = 0.47 N/m

Q: What is the minimum area (in square meters) of the top surface an ice slab 0.289 m thick floating on…

A: Given, Thickness of ice slab = 0.289 m Density of ice = 917 kg/m3 Density of water = 998 kg/m3

Q: A box made of high grade plastic material has an initial volume of 20 m. It is then immersed below…

A: strain on the body is defined as change in dimension of body divided by initial dimension  of the…

Q: Compute the volumetric decrease of 1.8 m³ of water subjected to a pressure of 5 x106 N/m2. The B for…

A: the bulk modulus is defined as Bulk modulus B = PressureStrain=-P∆VV

Variation of pressure

From the equation of pressure, pressure is directly proportional to the applied force.