« previous next »

Author Question: A stone is dropped from the top of a well that has water in it at a depth of 30.0 m. How long does ... (Read 70 times)

OSWALD

  • Hero Member
  • *****
  • Posts: 580
on: Jul 28, 2018
A stone is dropped from the top of a well that has water in it at a depth of 30.0 m. How long does it take the stone to reach the water?

Question 2

Reacting an acid with a base gives water and
 a. a carbonate.
  b. ammonia.
  c. carbon dioxide.
  d. a salt.


k2629

  • Sr. Member
  • ****
  • Posts: 357
Reply #1 on: Jul 28, 2018
Answer to Question 1

2.5 s

Answer to Question 2

d


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

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?

Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

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).

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Major trunk lines carrying long-distance traffic crisscrossed the area east of the Mississippi. The Major trunk lines carrying long-distance traffic crisscrossed the area east of the Mississippi. The
How water moves through a tree How water moves through a tree
Human activity has released carbon from sequestration in long-term reservoirs Human activity has released carbon from sequestration in long-term reservoirs
Bottled vs. Tap Water: A Summary Bottled vs. Tap Water: A Summary
Kidney Stone Kidney Stone
A thimble of water contains 4.0 x 1021 molecules. The number of moles of H2O is: A thimble of water contains 4.0 x 1021 molecules. The number of moles of H2O is:
Video: Coaductile pathway, Timing of contraction signal & Conduction system and ECG

For a complete list of videos, visit our video library