This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Explain in terms of buoyant force how a fish is able to rise and sink in water. Contrast this to the ... (Read 83 times)

londonang

  • Hero Member
  • *****
  • Posts: 540
on: Jul 29, 2018
Explain in terms of buoyant force how a fish is able to rise and sink in water. Contrast this to the way a submarine rises and sinks.
 
  What will be an ideal response?

Question 2

Why will a helium-filled balloon rise in air while an air-filled balloon sinks?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

todom5090

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Jul 29, 2018
Answer to Question 1

Saved me massive time.

Answer to Question 2

Answer: Both balloons displace air and have a buoyant force that depends on their volumes. If buoyancy were the only force acting, they both would rise. But there's weight. The air-filled balloon is simply heavier than the air it displaces, thus its weight is greater than the buoyant force, and it sinks. It is heavier because the stretched balloon fabric compresses the air within. Likewise for the helium, but it is so low in density that even when compressed it is still lighter than the air it displaces.


londonang

  • Member
  • Posts: 540
Reply 2 on: Jul 29, 2018
:D TYSM

bblaney

  • Member
  • Posts: 323
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Effects of Differences in Solute Concentration on the Movement of Water Molecules Effects of Differences in Solute Concentration on the Movement of Water Molecules
Zhang Huan, To Raise the Water Level in a Fishpond. Zhang Huan, To Raise the Water Level in a Fishpond.
Draw and label a diagram and explain how a factor-dependent transcription (rho-dependent) terminator Draw and label a diagram and explain how a factor-dependent transcription (rho-dependent) terminator
Different bodies of water have contrasting physical properties Different bodies of water have contrasting physical properties
How far apart should two protons be if the electrical force of repulsion exerted on each one is ... How far apart should two protons be if the electrical force of repulsion exerted on each one is ...
Hydrozoan. Hydra, a freshwater species capturing and digesting a water flea. Hydrozoan. Hydra, a freshwater species capturing and digesting a water flea.
Video: Secondary Active Transport

For a complete list of videos, visit our video library