A scientist is calculating the density of an ore sample. The scien- tist measures that the ore sample weighs 22.4 N in air. When the sample is suspended by a thin light cord and totally immersed in water, the tension in the cord is 14.2 N. What is the density of the ore sample that the scientist calculates. You can assume that any buoyant force from air is negligible.

Q: A Ping-Pong ball has a diameter of 3.80 cm and an average density of 0.084 g/cm. What force is…

A: Buoyancy is the force that helps a body to float. The buoyancy force is exerted on the object from…

Q: A board that is 20.0 cm wide, 5.00 cm thick, and 3.00 m long has a density 350 kg/m? The board is…

A: Given data:   Width = 20.0 cm = 0.200 m  Thickness = 5.00 cm = 0.0500 m  Length = 3.00 m  Density of…

Q: A spherical weather balloon is filled with hydrogen until its radius is 3.50 m. Its total mass…

A:

Q: A solid aluminum ingot weighs 89N in air. a. What is its volume? (The density of Al is 2.7x103kg/m3…

A:

Q: A cube of pine wood, of side length 20 cm is held underwater. Ppine = 550 kg/m° Pwater = 1000 kg/m?…

A:

Q: Two identical blocks are present. Both have a mass of 8.66 kg and a volume of 5.45 L. The first is…

A: M= 8.66kg  V= 5.45 L =  Weight in air 84.87 N  In the fluid It is 14.9N

Q: A rock is suspended by a light string. When the rock is in air, the tension in the string is 45.0 N…

A:

Q: A 700 g solid cube having an edge of length 10 cm floats in water. How much volume of the cube is…

A: Given:- The mass of the solid cube is m = 700g  The edge of length that float in water is h = 10 cm…

Q: A 6.1 kg solid metal sphere has a density of 2600 kg/m³. It is hung from a cord and completely…

A: Given that,Mass of metal sphere : m = 6.1 (kg)Density : ρ = 2600 (kg/m3)Tension : T = 26 (N)Here we…

Q: a) Calculate the absolute pressure at the bottom of a fresh-water lake at a depth of 26.2 m. Assume…

A: Part(a)Given,

Q: A solid object with the density p floats on a liquid with the density p liquid. What is the ratio of…

A: To determine: The ratio of the objects volume that is submerged in the liquid

Q: Sharks are generally negatively buoyant; the upward buoyant force is less than the weight force.…

A: Write the expression for net force on the fin in seawater

Q: A rock with density 1200 kg/m3 is suspended from the lower end of a light string. When the rock is…

A: Given: The density of rock is ρ=1200 kg/m3. The tension in the string is T=28 N. The density of…

Q: An object with a mass of 45.0 kg floats on salt water with a density of 1025 kg/m. What is the…

A:

Q: Bowling balls are roughly the same size but come in a variety of weights. Given that the official…

A:

Q: A spherical metal shell has an outer radius of 15.0 cm and an inner radius of 14.0 cm. The density…

A: Given that for metal shell: Outer radius R=15cm=0.15m Inner radius r=14cm=0.14m Metal density…

Q: A rock is suspended by a light string. When the rock is in air, the tension in the string is 39.2 N.…

A: Given, when rock in air, tension in the string is 39.2 N When the rock is totally immersed in water,…

Q: A 700 g solid cube having an edge of length 10 cm floats in water. How much volume of the cube is…

A:

Q: A rock with density 2100 kg/m3 is suspended from the lower end of a light string. When the rock is…

A: Given:The density of rock is .The tension in the string is .The density of liquid is .The expression…

Q: Bowling balls are roughly the same size but come in a variety of weights. Given that the official…

A:

Q: You need to determine the density of an unknown liquid. You notice that a wooden block floats in…

A:

Q: A rock is suspended by a light string. When the rock is in air, the tension in the string is 39.2 N.…

A: Given Weight of rock in air = 39.2 N the tension in the string = 28.4 N. When the rock is totally…

Q: An airplane flies on a level path. There is a pressure difference of 618 Pa between the lower and…

A: Given data The difference in pressure is ∆P=618 Pa The area is A=100 m2 The speed of air moves below…

Q: A stone is suspended by a mass-less string. When it is in air, the tension in the string is 45.8 N.…

A: Tension in string when it was, air =45.8 N Tension in string when it was, water= 32.6 N Tension in…

Q: A spherical balloon has a radius of 7.15 mm and is filled with helium. How large a cargo can it…

A: Note-Density of air is, Density of helium is,

Q: An empty rubber balloon has a mass of 12.5 g. The balloon is filled with helium at a density of…

A: Mass of empty balloon (M)=12.5 g Density of helium (ρHe)=0.181 kg/m3 Radius of the balloon (R)=0.268…

Q: You need to determine the density of a ceramic statue. If you suspend it from a spring scale, the…

A:

Q: Bird bones have air pockets in them to reduce their weight. This also gives them an average density…

A: Given : mass of bird in air M = 43 g = 0.043 kg Apparent mass of bird in water m = 3.60 g = 0.036 kg…

Q: A 6.1 kg solid metal sphere has a density of 2600 kg/m³. It is hung from a cord and completely…

A: Given, Mass of metal sphere, m=6.1kg Density =2600kg/m3 Tension, T= 26N Let the density of the…