1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mafiozo [28]
3 years ago
12

Mary wants to remove a dent from a ping-pong ball without cutting into the sealed ball. she decides to put the ball in a bowl of

boiling water. after a while, mary observes the dent disappearing until it is no longer present. why did the dent disappear?
a. the water caused an increase in temperature of the air inside the ball and a decrease in pressure.
b. the water caused an increase in temperature of the air inside the ball and an increase in pressure.
c. the water caused a decrease in temperature of the air inside the ball and a decrease in pressure.
d. the water caused a decrease in temperature of the air inside the ball and an increase in pressure.
Biology
2 answers:
Misha Larkins [42]3 years ago
8 0

The right option is; b. the water caused an increase in temperature of the air inside the ball and an increase in pressure.

The dent (hollow area formed by pressing or hitting) from the ping-pong ball disappeared because energy was transferred from the hot boiling water in which the ball was placed to the air inside the ball. This transferred energy will increase the temperature of the air inside the ball and the air molecules will begin to move faster with a greater force. Hence, causing an increase in pressure.

allochka39001 [22]3 years ago
8 0

Answer:

b

Explanation:

You might be interested in
Which best describes a difference between prokaryotic cells and eukaryotic cells?
MatroZZZ [7]
Prokaryotic cells do not have membrane bound organelles and eukaryotic cells do have membrane bound organelles
4 0
3 years ago
Read 2 more answers
CAN SOMEONE PLEASEEEE HELP ME WITH THIS SCIENCE QUESTION I WILL MARK YOU BRAINLIEST !!!
JulsSmile [24]

Answer:

When the rule of 70 applies to population, dividing 70 by the percentage of population growth should equal the time (in years) that the population needs to be double (option A)

Explanation:

The rule of 70 is useful to calculate the time in which a variable of any type can be duplicated. The calculation is done by dividing the number 70 by the percentage of growth of the variable.

<u>If the rule of 70 is applied to the population, it is possible to calculate, based on its growth rate, the time that population would need to double</u>.

If, for example, the growth rate of a population is 3 percent:

70 / 3 = 23,33

This indicates that a population, with a growth rate of 3% would need about 23,33 years to double.

6 0
2 years ago
Which body of water is found in the east of Costa Rica? a. the Pacific Ocean c. the North Sea b. the Atlantic Ocean d. the Carib
Alja [10]

Costa Rica is surrounded by the Pacific Ocean and the Caribbean Sea. It also borders the Gulf of Nicoya.


4 0
2 years ago
Select the phrases that accurately describe properties of the most common form of the DNA double helix. There is more than one c
icang [17]
You did not included your list of selections.  Some general properties ascribed to DNA are storage and expression of information and variables through mutations.  Replication, Transcription, Translation and Mutagenesis are the major functions of DNA in a cell.  DNA nucleotides contain deoxyribose.  DNA is double-stranded in the conservative mode, the original double Helix remains a complete unit and the new DNA double Helix is produced as a single unit.  In the double=stranded DNA, Hydrogen bonds hold one complimentary strand to the other.  

Hope this helps, I love Science.
8 0
3 years ago
Please answer!!
Mariana [72]

Answer:

C. Immune system

Explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • Which nutrient is essential to the health of all tissues including the brian?
    13·1 answer
  • The completion of the human genome project revealed that the human genome contains fewer genes than expected, not so many more t
    11·1 answer
  • At which phase are centrioles beginning to move apart in animal cells?
    10·1 answer
  • 39)
    10·1 answer
  • HeLPP PLEASeee<br><br> What does the following diagram illustrate?
    11·2 answers
  • Which of the following best describes why someone with an immunodeficiency disorders may get sick more easily than someone witho
    10·2 answers
  • 8. Are the chromosomes the daughter cells produced by mitosis the same as or different from
    5·1 answer
  • I need help I put a screen shot this is worth 44 points pls help
    15·2 answers
  • Please help !! Which organism is the producer?
    13·2 answers
  • Match the following terms and definitions.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!