Calculate the volume (in m^3) of helium needed in a hot air balloon to lift at least 100 kg of load. Density of He = 0.179 kg/m^3, density of air = 1.29 kg/m

Q: Calculate the mass of a solid gold rectangular bar that has dimensions lwh = 4.00 cm ✕ 15.0 cm ✕…

A: Volume, V = 4 cm x 15 cm x 27 cm  density, d = 19.3 x 1000 kg/m3

Q: Density is mass divided by volume (p=m/v), and water was used as the basis for establishing the…

A: Given:

Q: The density ρ of a fluid changes proportionally with depth from the surface h according to the…

A:

Q: needed in a hot air balloon to lift at least 100 kg of load. Density of He = 0.179 kg/m^3, density…

A: According to Archimedes principle Buoyant force= weight of liquid displaced

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A: (given) Weight (W1) of a metal object = 26.03 g                                                  =…

Q: When you are swimming at the bottom of a pool, the water above and around you exerts force on your…

A: given, Height of depth h= 5m Area of eardrum A=1cm2 = 10-4 m2 Density of water ρ=1000 kg/m3

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Q: When you are swimming at the bottom of a pool, the water above and around you exerts force on your…

A: Given The depth of the swimming pool is h=5 m. The density of the water is ρ=1000 kg/m3. The area…

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

A:

Q: Calculate the volume (in m^3) of helium needed in a hot air balloon to lift at least 100 kg of load.…

A: Given : Load →mload=100 kg Helium density →ρhelium =0.179 kg /m3 Air density →ρair=1.29 kg /m3

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A:

Q: Using the fact that the density of water is 1000 kg/m**3, calculate the absolute pressure at a depth…

A: absolute pressure Pabsolute=ρgh+P0

Q: Calculate the mass of a solid gold rectangular bar that has dimensions lwh = 4.40 cm ✕ 13.0 cm ✕…

A: Formula of density is as follows; ρ=mV…

Q: You purchase a rectangular piece of metal that has dimensions 5.0 x 15.0 × 30.0 mm and mass 0.0158…

A: Given Data: The dimensions of the rectangular piece is,  5×15×30 mm. The mass is, m = 0.0158 kg.…

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Q: The SI unit of pressure is the pascal, which is equal to one newton per square meter: 1 Pa = 1 N/m?.…

A:

Q: When you are swimming at the bottom of a pool, the water above and around you exerts force on your…

A: We have P=hρg⇒F=PA =hρgA

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A:

Q: A spherical balloon has a radius of 11.5 m, and is filled with helium. How large a cargo can it…

A: radius of balloon = 11.5 m volume of balloon = V = 4/3 π R3= (4/3)π(11.5)3 = 6370.6 m3 Mass of…

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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: When you are swimming at the bottom of a pool, the water above and around you exerts force on your…

A: We will find the pressure of the water at that depth and then by multiplying the area we will find…

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A:

Q: When you are swimming at the bottom of a pool, the water above and around you exerts force on your…

A: Given, Depth of water = 5 m density of water ρ = 1000 kg/m3 Area of eardrum A = 1 cm2 = 10-4 m2

Q: You purchase a rectangular piece of metal that has dimensions 5.0 * 15.0 * 30.0 mm and mass 0.0158…

A: Dimension of metal piece is : 5×10-3 m ×15×10-3 m×30×10-3 m Mass is 0.0158 Kg Formula for density is…

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Q: An open cylindrical tank with a diameter of 5 m. has Water (s.g. = 1.00, h = 3.5m), Oil (s.g. =…

A: diameter of tank= 5 m We have been provided with 4 different liquids so, we will arrange them in…

Q: When you are swimming at the bottom of a pool, the water above and around you exerts force on your…

A: Pressure exerted =Pfluid  Pressure⇒  P due to fluid =ρgh ⇒(103 )(9.8)(5)=49×103Pa or 49 KPa Total…

Q: When you are swimming at the bottom of a pool, the water above and around vou exerts force on your…

A: Depth h= 5m Area of eardrum= 1cm2=10-4m2

Q: A solid brass sphere weighs 190 N in air and has a density of 8.6 x 10 kg/m3. What is its volume?…

A:

Q: When you are swimming at the bottom of a pool, the water above and around you exerts force on your…

A: force = pressure×area =hρgA

Q: A 16.21 kg object with dimensions 0.1m x 0.1m x 0.2m, as shown in the figure, has a hole inside with…

A: The mass of the object is, m=16.21 kg The height of a cylindrical hole is, h=0.2 m The volume of the…

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A: Pressure at same horizontal level remains same in same liquid.

Q: When you are swimming at the bottom of a pool, the water above and around you exerts force on your…

A: 1. we have to find out unbalance forces because of it pressure exerted on the eardrum. 2. two find…

Q: Calculate the volume (in m^3) of helium needed in a hot air balloon to lift at least 100 kg of load.…

A: The mass of the load is m=100 kg The density of the air is ρa=1.29 kg/m3 The density of the helium…

Q: It is known that a cubical object made of cast aluminum 0.258 m on a side contains a hollow cavity…

A:

Q: 2. The density of water in FPS. a. 62.297 lbs/cubic ft. b. 60 lbs/cubic ft. c. 60.85 lbs/cubic ft.…

A: We know that  Density of water in SI unit is  d = 997 kg/m3 We need to convert it into FPS

Q: When you are swimming at the bottom of a pool, the water above and around you exerts force on your…

A: Given: The depth is h=5.0 m, The area of the eardrum is A=1 cm2, The density of water is ρ=1000…

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Q: Looking at how Archimedes discovered his principle during a bath and thinking about if King Hiero’s…

A: Given Weight of the crown in air = 3.55 kg = 34.8 N Weight of the crown in water =3.25 kg =31.9 N…

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Q: The volume flow rate in an artery that supplies blood to the brain is 3.20 ✕ 10−6 m3/s. If the…

A: V=Avv=VA=3.20 ✕ 10-6 m3/s8.90 ✕ 10-5 m2=3.60×10-2 m/s

Q: In a lab, a foot-long test tube contains gasoline (density equal to 748.9 kg/m³) and oil (density…

A: GivenLength of test tube, h=1 foot=0.3048 m Density of Gasoline, ρg=748.9 kg/m3Density of oil,…

Q: If (p.) represent the pressure at the top surface of the liquid. At a point with coordinate (y) to…

A: Pressure is a scalar quantity defined as force per unit area.  Gravitational potential energy is the…

Q: When you are swimming at the bottom of a pool, the water above and around you exerts force on your…

A: Pressure is the force acting on a unit area. It is calculated as P=FA. Atmospheric pressure is the…

Q: Calculate the volume (in m^3) of helium needed in a hot air balloon to lift at least 100 kg of load.…

A:

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

Q: When you are swimming at the bottom of a pool, the water above and around you exerts force on your…

A: