« previous next »

Author Question: Why (if you are careful) are you able to float a needle on the surface of water? (Read 1414 times)

Mr. Wonderful

  • Hero Member
  • *****
  • Posts: 866
on: Apr 23, 2014
Why (if you are careful) are you able to float a needle on the surface of water?
A) Water has adhesive properties.
B) The surface tension that is a result of water's cohesive properties makes this possible.
C) The covalent bonds that hold a water molecule together are responsible for this ability.
D) A single needle is less dense than water.


Millan

  • Sr. Member
  • ****
  • Posts: 368
Reply #1 on: May 9, 2014
This is for essentials biology, right? the answer is B. Bye for now.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

Mr. Wonderful

  • Hero Member
  • *****
  • Posts: 866
Reply #2 on: May 9, 2014
Thank you, you were right :D


Celeste

  • Hero Member
  • Posts: 588
Reply #3 on: May 12, 2014
[member=9]Millan[/member] Thanks, sir!


« previous next »
 

Did you know?

More than 4.4billion prescriptions were dispensed within the United States in 2016.

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

Did you know?

Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

Rackstraw Downes, Presidio in the Sand Hills Looking East with ATV Tracks and Water Tower. Rackstraw Downes, Presidio in the Sand Hills Looking East with ATV Tracks and Water Tower.
Is breathing water dangerous? How do you know? Is breathing water dangerous? How do you know?
A cutaway of a typical water pump showing the long bearing assembly and the seal. The weep hole is ... A cutaway of a typical water pump showing the long bearing assembly and the seal. The weep hole is ...
Adjust the water coming from the faucet so that the temperature is comfortable. Water too hot can ... Adjust the water coming from the faucet so that the temperature is comfortable. Water too hot can ...
EAT YOUR WATER EAT YOUR WATER
Video: Power Supply Polyacrylamide Gel Protein Sample

For a complete list of videos, visit our video library