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
il63 [147K]
3 years ago
9

A book that weighs 20 N sits on a table. How big and in what direction does the force of gravity from the Earth act on the book?

Biology
2 answers:
Alecsey [184]3 years ago
7 0
The answer to the first question is A

W = ma
20 N = m (9.8)
M = 20/9.8
M = 2.04
Fg=mg
Fg= 2.04 x 9.8
≈ 20 N [down]

Hope this helps and please mark brainliest thanks
inna [77]3 years ago
3 0

Answer:

1. A

2. C

3. A

4. D

5. A

6. B closer to 4 than 3

7. A

8. C

9. A

10. C

11. C

You might be interested in
What novel characteristics are shared by gymnosperms and angiosperms but not by mosses and ferns?
sergejj [24]

Explanation:

Mosses go through sporophyte and gametophyte stages in their life cycle. ... However, mosses are nonvascular while ferns are vascular. Gymnosperms and angiosperms are both vascular, seed-bearing plants. However, gymnosperms release their seeds in cones (like pinecones) while angiosperms release their seeds through flowers.

3 0
3 years ago
Which of the following characteristics only pertains to chloroplasts?
beks73 [17]

Answer:

Chloroplasts are a type of plastid—a round, oval, or disk-shaped body that is involved in the synthesis and storage of foodstuffs. Chloroplasts are distinguished from other types of plastids by their green colour, which results from the presence of two pigments, chlorophyll a and chlorophyll b.

Explanation:

I hope this helps and pls mark me brainliest :)

7 0
3 years ago
Label the features of the stomach and nearby regions in this frontal section of a cadaver (anterior view)
Fantom [35]
1- Pyloric sphincter
2-Duodenum
3- Bile duct
4-Pancreatic duct
5-Esophagus
6-Lower esophageal sphincter
7-Fundus of stomach
8- Cardia
9-Body of stomach
10-Pyloric part

The <span>esophagus(5) connects to the stomach.</span>
<span> The food passes,from the pharynx, to the esophagus, to the stomach. This process is aided by peristaltic movements done by esophagus muscles.
This organ contains two sphincters:</span><span>the upper and the lower esophageal sphincter.
 
</span>The stomach is divided into four parts:
<span><span>1-The cardia (8) - this part is connected to  the esophagus and its where  the epithelium changes from stratified squamous to columnar.
In this region is the lower esophageal sphincter (6).

</span>2--The fundus(7)- It's formed by the upper curvature of the stomach.

3- the body(9)- is the main part; and the biggest

4-The pylorus/</span><span> Pyloric part (10) - is the lower region. This part is connected to the small intestine, the duodenum. In this region there is a </span>
strong ring of muscle called the (<span>1) Pyloric sphincter.


In the first part of the duodenum there is a connection with a duct that comes from the pancreas -4-</span>Pancreatic duct .
There is another duct that ends in the duodenum called- <span>Bile duct, that caries bile to digest fats.</span>
8 0
3 years ago
"Spent" nuclear fuel rods come out of a reactor and need to be handled carefully. Why must power plants spend so much money and
Sedbober [7]
The answer to your question is C

7 0
3 years ago
Read 2 more answers
g What are the three basic assumptions of Darwinian evolution? Group of answer choices Presence of phenotypic variation, some ph
enot [183]

Answer:

1- Presence of phenotypic variation

2- some phenotypic variation due to genetic variation

3- the given trait has an impact on fitness  

Explanation:

The evolutionary theory by natural selection proposed by Darwin in his publication “On the origin of species” (1859) is based on a series of assumptions that enable to understand the amazing biodiversity on the Earth. First, individuals are not identical among them, i.e., there exists variation in the traits among the members of a given population, species, etc. Second, phenotypic variation leads to differential survival and reproduction of the organisms that are best fitted to the environment (i.e., competence among the members of the population). Finally, phenotypic traits are passed from generation to generation (i.e., phenotypic variation is inheritable), thereby favoring offspring from parents more adapted to the environment.

3 0
3 years ago
Other questions:
  • Which of these best describes a use of a biostimulation?
    9·2 answers
  • Describe how a faulty protein alters the movement of chloride ions across the cell membrane. How does this change in the cell me
    15·1 answer
  • name two major vessels that return oxygen-poor blood to the heart. What are the damages for each? Where do they terminate?
    13·1 answer
  • Why is cell size limited
    10·1 answer
  • Brianliest asap!!!!!!!!!!!!!!!!!!!!!!!
    11·1 answer
  • A factory is emitting large amounts of CFCs into the atmosphere. How might this affect people?
    15·2 answers
  • What was different about the atomic theory proposed by Niels Bohr?
    5·1 answer
  • Question 7
    5·1 answer
  • What is the formula for 1 molecule of water
    14·2 answers
  • What factors contributed to the success of the virus in 2012
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!