You fill a balloon with helium and let it go. It floats up into the air, where it is essentially floating in a pool of air. Why does the helium filled balloon float in air? Make sure you use the words ‘buoyancy’, ‘density’ and ‘volume of displaced ‘air’ in answering this question.

Q: John and Madeline go to home Depot to buy some logs to build a raft. They find logs that are 3…

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Q: a. What fraction of object #1’s volume remains submerged after it reaches the surface and stops?…

A: SOlution: to find the volume submerged in the water case 1. density =450 kg/m^3 case 2. density =800…

Q: A garden hose with an internal diameter of 3.1 cm is connected to a (stationary) lawn sprinkler that…

A: Given data: Internal diameter of the garden hose (d1) =  3.1 cm = 3.1×10-2 m.Diameter of the…

Q: A fire breaks out in the Metcalf Science Building (SCI). Thankfully, the Boston Fire Department…

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Q: Scuba divers are admonished not to rise faster than their air bubbles when rising to the surface.…

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Q: What is buoyancy force? Compare the relative magnitudes of the buoyancy force acting on a body…

A: Buoyancy force is defined as the upwards force exerted by a fluid on any object while the object is…

Q: A friend asks you how much pressure is in your car tires.  Unfortunately, you have misplaced your…

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Q: A garden hose having an internal diameter of 3.5 cm is connected to a lawn sprinkler that consist…

A: From the equation of continuity, A1V1=A2V2…

Q: What fraction of cork is submerged when it floats in freshwater, given the density of water at 0°C…

A: The formula for the fraction submerged portion is:

Q: If a swimming pool is filled with mercury instead of water, what is the gauge pressure at the bottom…

A: Depth , h = 5.5 m Density of mercury , ρ = 13.6 x 103 kg/m3  To find = gauge pressure

Q: Two objects, A and B, have the same volume and are completely submerged in a liquid, although A is…

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Q: A large, bronze statue of Newton falls from the deck of a ship and sinks until it rests on the…

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Q: A piece of aluminum has density 2.70 g/cm^3 and mass 775 g. The aluminum is submerged in a container…

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Q: Consider a situation where blood flows through a section of a horizontal artery that is partially…

A: The pressure is defined as the ratio of the force and the area. According to the Bernoulli theorem,…

Q: (a) Calculate the absolute pressure at an ocean depth of 140 m. Assume the density of sea water is 1…

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Q: A hippo is dozing under water with only its small nostrils sticking out. It has a mass of 2700 kg…

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Q: dives into a shallow lake to explore the fauna that lives at the bottom of the lake. How is the…

A: let pressure due to at atmosphere be Po pressure at surface of liquid = Po as the surface is in…

Q: A garden hose with an internal diameter of 1.9 cm is connected to a (stationary) lawn sprinkler that…

A: Given, A garden hose with an internal diameter of 1.9 cmConnected to a (stationary) lawn sprinkler…

Q: 0.5 m 20 kg A B C p= = 1000 kg T 0.15 m A container of water has a cross-sectional area of 0.50 m².…

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Q: A cube of oak wood with very smooth faces normally floats in water. Suppose you submerge it…

A: There is no water under the face means no upward force and all the forces including gravity towards…

Q: Suppose you drink a liquid through a straw. Explain why the liquid moves upward, against gravity,…

A: We must ascertain the cause of the liquid's upward movement against gravity via the straw and into…

Q: A metal object “weighs” 26.03 g in air and 21.48 g when totally immersed in water. What is the…

A: Given that weight of the object in the air W1 = 26.03 g = 0.02603 kg = (0.02603)(9.8) N weight in…

Q: In a car service station, the air exerts a force on a small piston of radius r = 5 cm. The change in…

A: Given data F1=15000 Nr=5 cmR=15 cm

Q: 10. A balloon is filled with helium (density = 0.180 kg/m³) to a volume that has a radius of 1.50 m…

A: A balloon filled with helium where the density of the helium gas isto a volume that  has a radius of…

Q: A marine biologist is preparing a deep-sea submersible for a dive. The sub stores breathing air…

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Q: horizontal section of pipe whose cross-sectional area is A₂ -0.0575 m². The gas has a density of…

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Q: Below are densitys of 5 objects. All 5 will be fully submerged in bromine (3.1 kg/L) when fully…

A: There are five objects with different densities, all are fully submerged in a liquid of density 3.1…

Q: A friend asks you how much pressure is in your car tires.  Unfortunately, you have misplaced your…

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

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

A: Answer :- Weight in air = True weight = 45 g            Apparent weight = 3.6 g…

Q: A tall cylinder whose height is h-13.1 cm is initially filled with water (1.00 g/cm) up to h-3.16…

A: Formula for pressure is P=dgh where  d= density  g = acceleration due to gravity  h = height or…

Q: An object is floating in equilibrium on the surface of a liquid. The object is then removed and…

A: We will be using the concept of buoyant force in this question    Fb= buoyant  Fb= dVg d= density of…

Q: You push a piece of wood under the surface of a swimming pool. After it is completely submerged, you…

A: Archimedes' principle states that the buoyant force (in upward direction) on an object is equal to…

Q: Scuba divers are admonished not to rise faster than their air bubbles when rising to the surface.…

A:

Q: A fish introduces more air into its swim bladder so that it rises toward the surface of the water.…

A: When fish introduces more air into its swim bladder, the swim bladder inflates that increases size…

Q: Water is flowing without friction through a pipe. At the beginning of the pipe the water is flowing…

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Q: A 8.0 kg freshwater fish at the surface of a lake is neutrally is neutrally buoyant. If the density…

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Q: Fish control their buoyancy through the use of a swim bladder, a gas-filled organ inside the body.…

A: In this question we are given that fish control their buoyancy through the use of a swim bladder, a…

Q: Five containers each hold the same volume of various liquids. Five blocks composed of various solids…

A: Archimedes' principle, which states that the buoyant force on an object submerged in a fluid is…

Q: The truck with the raised tarpaulin shown is moving at 26.0 m/s. Assume the air inside the cargo…

A: According to the Bernoulli’s equation, the expression can be written as…

Q: Fish can adjust their buoyancy with an organ called the swim bladder. The swim bladder is a flexible…

A: Given: Fish can adjust their buoyancy with an organ called the swim bladder. The swim bladder is a…

Diatomic Gas

Molecule, is a collection of two or more atoms together (which constitute the smallest observable unit) into a pure material. There are some ways to represent the structure of a molecule. Factor symbols represent atoms in Lewis structures, and dots represent electrons that accompany them. A pair of mutual electrons (covalent bond) may be represented by a single dash. The ball-and-stick model depicts the spatial structure of the atoms better.