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
disa [49]
3 years ago
14

Dale makes a model of part of an elemental solid by attaching balls to each other with rods. His model looks something like the

following image:
How could Dale improve his mode

 A. 

by using springs instead of rods to allow the model atoms to vibrate in their positions

 B. 

by using strings instead of rods to allow the model atoms to move more freely

 C. 

by using different sizes of balls to represent different kinds of atoms

 D. 

by using cotton balls instead of hard balls to allow the model atoms to change size

​

Biology
2 answers:
Roman55 [17]3 years ago
5 0

Answer: Option A

Explanation:

The strong inter molecular forces that is found in solids does not allows the atoms to move out of the solid but it allows them to vibrate on its position.

The atoms in the solid are joined together by strong inter molecular forces that does not allows the atoms to move out of the bond but due to kinetic energy the atoms keeps them vibrating even if they remain in their position.

Hence, the correct answer is option A because the model must have been substituted with a spring inspite of rods.

stira [4]3 years ago
4 0

Answer:

by using springs instead of rods to allow the model atoms to vibrate in their positions

Explanation:i got it correct

You might be interested in
Soil is best described as _______.
elena-14-01-66 [18.8K]

Answer:

Soil is composed of small pieces of a variety of materials, so it is a heterogeneous mixture.

Explanation:

6 0
2 years ago
The characteristic that all lipids have in common is __________.
DaniilM [7]

Answer:

they have in common is fats

6 0
3 years ago
The structural and functional unit of skeletal muscle is called a/an . The connective tissue covering around a fascicle is the .
Ainat [17]

Answer:

The structural and functional unit of skeletal muscle is called a sacormere

The connective tissue covering around a fascicle is the perimysium

The part of a muscle fiber that contracts is called the myofibril

The connective tissue covering on the outside of a whole muscle is the Epimysium

Explanation:

8 0
3 years ago
Each of 100 laboratory rats has available both plain water and a mixture of water and caffeine in their cages. After 24 hours, t
olchik [2.2K]

Answer:

C. About 18 percent of the variation in blood pressure can be explained by a linear relationship between blood pressure and caffeine consumed.

Explanation:

Here, r = 0.428

∴ We can say it will give a positive curve, as 0.428 indicates it is a positive correlation.

Though the amount of correlation is low, still it is positive and more than 0.4

So, nearly about 18% of the variation in the blood pressure can be observed by the consumption of caffeine water. As consumption of caffeine water and blood pressure is both increasing so we can say that r= 0.428 will give a positive linear curve.

 

3 0
3 years ago
A patient develops postthrombotic syndrome. the nurse assesses lipodermatosclerosis, which has what hallmark characteristic?
FrozenT [24]
<span>Postthrombotic syndrome involves the formation of blood clots in the body and that is its hallmark. Some of the symptoms include leg pain and swelling. Lipodermatosclerosis involves problems with veins in the leg and is evident by changes in the lower legs.</span>
8 0
3 years ago
Other questions:
  • Give five statements about hemoglobin and myoglobin structure that are true?
    7·1 answer
  • Which process has the greatest effect in determining which members of a population are most likely to survive until reproductive
    10·1 answer
  • Why are more and more people concerned about the increased use of fossil fuels, like gasoline used in cars?
    5·1 answer
  • 30 POINTS HELP ASAP! WRITE IN YOUR OWN WORDS!!! I WILL MARK BRAINLIEST HELP PLEASE ITS DUE TODAY AND I REALLY NEED TO GET IT DON
    10·1 answer
  • What do two different neutral isotopes of the same element have in common?
    10·2 answers
  • What do nitrates phosphates and carbon dioxide do in ponds lakes and rivers
    5·1 answer
  • The list above describes things that might occur in a child due to exposure to ________ during pregnancy
    5·2 answers
  • Which of the following best depicts energy flow in an ecosystem?
    6·1 answer
  • Which of the following best describes the characteristics that differentiate animals from
    9·1 answer
  • Vitamin B12 is important for the body to function. It helps keep nerve cells healthy, and it helps with the formation of red blo
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!