What is the Density of an object with a mass of 20 grams and a
volume of 10 cmº?

Answers

Answer 1
Answer: 2
Explanation:
D=m/v, Density=Mass/Volume
D=20/10
D=2

Related Questions

What is the role of the biomolecule represented in this diagram?

Answers

Answer:

provides energy and insulation

Explanation:

the biomolecule is carbohydrates or lipids

Carla, who is participating in a dichotic listening study, is asked to ignore any information that is presented to her right ear. She finds that she has no problem doing this except for when she thinks she hears her name in her right ear. Carla is experiencing:

a) the cocktail party effect.

b) blindsight

c) inattentional blindness

d) change blindness

Answers

The answer is :
A ) The cocktail party effect.

Hope this helped (:

How many grams of solute are needed to make 250 mL of a 2.055 M NaCl solution?
30 grams
76.7 grams
300.081 grams
58.44 grams

Answers

Answer:

30grams

Explanation:

To calculate the mass (number of grams of the solute) in the solution, we need to calculate the number of moles it contains first. We use the formula;

M = n÷ V

Where; M= Molarity or Molar concentration = 2.055M

n= number of moles= ?

V= Volume = 250mL

Volume in L is 250/1000 = 0.250L

n= M × V

n= 2.055 × 0.250

n= 0.51375moles

The mass is calculated using :

Mole (n) = mass (m) / molar mass (MM)

Molar mass of NaCl = 23 + 35.5

= 58.5g/mol

Mass = molar mass × mole

Mass = 58.5 × 0.51375

Mass = 30.0543

Therefore, the mass is 30grams

A scientist is observing a eukarotic cell and a prokaryotic cell. Which structure could she only observe in the eukaryotic cell? cytoplasm DNA ribosomes a nucleus

Answers

Answer:

D. a nucleus

Explanation:

PLEASE HELP MEH!!!!

A patient’s blood is tested for growth hormone which has a molecular mass of 848.952 g/mol. The test results show a normal concentration of 4 . 0 × 10 − 6 g/L. How many moles of growth hormone are in 1 L of blood?

Answers

30 g molecular concrete

explain when you would use a line graph

Answers

When you need to track changes over and short or long period of time

Whole brain death occurs when the ______ ceases to function.

Answers

Answer:

Whole brain death occurs when the BRAINSTEM ceases to function.

Explanation:

In the US, whole brain death = legal death. Most people consider that a person is brain dead when the cerebrum, or the higher brain, is dead because the person is not able to think or have control over his/her body, but legally you are brain dead only when the brainstem ceases to function. The brainstem is responsible for keeping you alive and performing the most basic bodily functions like breathing and keeping your heart beating. But once it fails, you are legally dead. Even if your body could still survive using a ventilator and other devices, your brain has ceased to work and you wouldn't be able to survive if you were unplugged.

the intake of food must be monitored to make sure that the cells in the body possess the essential nutrients to function​

Answers

Yes that is true it should be

All of the following are included in the forebrain except the
A. cerebellum
B. cerebrum
C. thalamus
D. hypothalamus
Please select the best answer from the choices provided

Answers

Answer:

D.

hypothalamus

Explanation:

edge

All the structures above indicated are included in the forebrain EXCEPT the CEREBELLUM (Option A).

The forebrain (also known as the prosencephalon) is the largest region of the brain.

The forebrain is composed of the cerebrum (telencephalon), thalamus, hypothalamus, pineal gland and limbic system.

The cerebrum is recognized to be the biggest portion of the brain.

On the other hand, the cerebellum is a brain structure located between the brainstem and the cerebrum.

The functions of the cerebellum include motor abilities, sensory perception and body posture/balance.

In conclusion, all the structures above indicated are included in the forebrain EXCEPT the CEREBELLUM (Option A).

Learn more in:

https://brainly.com/question/763962?referrer=searchResults

Which of the following are
factors in weathering and
erosion?
1. Precipitation
2. Temperature
3. Gravity
4. Wind
5. Deforestation
6. Acid

Answers

Answer:

please mark brainliest!

Explanation:

- Physical Weathering.

- Chemical Weathering.

- Water Erosion.

- Wind Erosion.

- Gravity.

Answer:

5. deforestation

4. wind

3. gravity

1. precipitation

How can there be so many similarities between organisms, but also so many different types of plants, animals,
and microorganisms?

Answers

Answer:

Many of the similarities between organisms are the result of inheritance: organisms inherit features from their ancestors which they often use in similar ways. ... Other similarities occur because organisms at all places and times face similar problems: finding mates, avoiding predators, obtaining food.

Explanation:

Answer:

not all organisams are diffrent,just know that.

Explanation:although there might be diffrent speices they can still be in like the same organizam

What organelles are found in a Fly muscle

Answers

Answer:

Organelles of the muscle cell are also named slightly differently: the plasma membrane is called sarcolemma; the cytoplasm is sarcoplasm, and the endoplasmic reticulum is sarcoplasmic reticulum. Skeletal muscle cells have many nuclei along their membrane.

Explanation:

hopefully that helps you

How do experiments show cause-and-effect relationships?

Answers

Answer:

A cause and effect relationship is when something happens that makes something else happen. ... Cause and effect relationships are also found in stories. For example, if Mae is late to school, she might lose recess time. In that case, being late to school is the cause and the effect, or result, is her losing recess time.

One hot afternoon you are
standing on a beach and
notice the wind blowing in your
face as you look out to the
ocean. Why is this happening?
I NEED HELP ASAP!!!!

Answers

Answer:

The ocean breeze is causing a breeze coming toward the land from the sea towards the land. this is in all likelihood happening in light of the fact that as cooler air sinks back to the surface, it is blown towards the land and is warmed by Earth.  

Sea breezes happen during summer days due to the inconsistent warming rates of land and water. During the day, the land surface warms up quicker than the water surface. Consequently, the air over the land is hotter than the air over the sea. Presently, review that hotter air is lighter than cooler air.

which of the following is the best explanation of how one organelle and a cell directly supports the work of another organelle to maintain cellular homeostasis

Answers

Answer:

All organelles have specific things that they are responsible for, all organelles work together to support the cell to work which maintains homeostasis. Organelles know their jobs and do them right so that the cell can function properly.

benifits of seroranin

Answers

Answer:

Serotonin is an important chemical and neurotransmitter in the human body. it is believed to help regulate mood and social behavior, appetite and digestion, sleep, and memory

7. If a growing child has deficient production of pituitary secretions, this child would
a. Develop acromegaly
b. Become a dwarf
C. Mature sexually at an early age
d. Be in constant danger of becoming dehydrated

Answers

Answer:

b. Become a dwarf

Explanation:

A decreased secretion of growth hormone can result in pituitary dwarfism which then decreases the rate of cell division of cartilage cells in the epiphyseal plate

What are the organisms that breakdown dead organisms called

Answers

Answer:

Decomposers

Explanation:

hope it helps

Answer: The answer is decomposers.

Explanation:

4. Adaptive radiator

different habitats and few competitors, thus diversifying rapidly into several new

O True

O False

5.

increases the frequency of adaptive mutations in a population over time.

(select only one answer)

O Fitness

O Natural selection

Artificial selection

Adaptive radiation

6. Any change in allele frequencies in a gene pool is called

2

(select only one answer)

natural selection

Answers

Answer:

The correct answer is-

4. true

5. Natural selection

6. microevolution

Explanation:

Adaptive radiation is a cycle where living beings diversifying rapidly from a familial or an ancestral species into a huge number of several new types, especially when there are new environmental aspects present such as different habitats and few competitors.

Thus, it is a true statement.

Natural selection is the cycle through which a population or a species of living beings adjust and change over the period of time.  natural selection just acts upon the heritable attributes of a population by choosing for advantageous alleles or and in this manner increasing the frequency of these adaptive alleles in the population.

Thus the option Natural selection is correct.

Changes inside a genetic pool from happening to one generation to another is known as microevolution. Allele frequencies in a population may change because of, natural selection, mutation, genetic drift, and genetic flow.

Thus, the correct answer is - microevolution.

I would like to know your opinion:
Suppose that you and your spouse held frozen embryos at a private fertility clinic and that you knew you would never need them. Would you donate them for stem cell research? Why or why not?

Answers

What’s your overall point

Interior layer of the Sun where hot and cooler gases circulate. A:convective zone B:chromosphere C:radiative zone D:corona

Answers

C is the answer

The answer is c

Which is NOT a prokaryote?

( WILL REWARD BRAINLIEST)

A. Archaebacteria

B. Fungi

C. Halophiles

D. Eubacteria

Answers

Answer:

B, fungi!

Explanation:

Fungi is a eukaryote.

Answer:

Fungi

Explanation:

Because it's eukaryote contain true nucleus.

What is the internal and external adaptation in a leaf for photosynthesis? Please give a clear short answer (prefer in bullet points). I will give brainliest to fastest answer

Answers

Answer:

They are adapted for photosynthesis by having a large surface area, and contain openings, called stomata to allow carbon dioxide into the leaf and oxygen out. ... The cells inside the leaf have water on their surface. Some of this water evaporates, and the water vapour can then escape from inside the leaf.

Answer:

▪︎leaf with large surface area

▪︎dark coloured leaf for maximum sunlight absorbtion

▪︎has stomata openings to allow carbon dioxide diffuse in the leaf

▪︎It has the green pigment :chloroplast inside to absorb sunlight

13. The differences between two molecules include the type of sugar that
forms a section of the molecules and the identity of one of the four
nitrogenous bases that make up another section of the molecules. These
two molecules are - *

Answers

Answer:

DNA and RNA are the molucules

Explanation:

A conveyer belt moves a 40 kg box at a velocity of 2 m/s. What is the kinetic energy of the box while it is on the conveyor belt?

Answers

I have no idea tbh I just want points sorry not sorry

A science class investigated the relationship between the amount of time
students spend doing chores every night and their average grades on
schoolwork. Which statement from the lab report best represents a
conclusion?
A. Based on our results, students who do 1 hour of chores per night
have grades that are on average 0.2 points higher than students
who do no chores.
B. Doing chores at night actually helps students do better at school,
even if it seems like the opposite would be true.
C. We believe that students should spend at least 2 hours doing
chores every night if they want to get better grades at school and
help their families.
OD. If students spend at least 1 hour per night on chores, then they are
guaranteed to get higher grades on their schoolwork.

Answers

Answer:

A. Based on our results, students who do 1 hour of chores per night

have grades that are on average 0.2 points higher than students

who do no chores.

Explanation:

In a scientific experiment that employs the scientific method, series of steps should be followed. The steps involved in the scientific method include; making an observation/asking a question, formulating a hypothesis, testing the hypothesis, analyzing the result, drawing a conclusion etc.

From this step, we would notice that DRAWING CONCLUSION immediately follows the analysis of result, which means the conclusion is based on the result of the experiment. A conclusion in a scientific experiment should be factual and based on the measured result. It should either reject or accept the hypothesis.

The best representation of a conclusion is A. Based on our results, students who do 1 hour of chores per night have grades that are on average 0.2 points higher than students who do no chores. This statement has a conclusive content unlike other options that still seemed unlikely.

Answer:

A

Explanation:

Did the quiz

What is a secondary crime scene?

Answers

Answer:hope this helps

SECONDARY CRIME SCENES. A location related to the crime but not where the actual crime took place. Sometimes this is the only scene that investigator's know about. There can be MANY secondary crime scenes.

Explanation:

Which statements are true of a scientific theory but not a hypothesis? It is supported by multiple experiments. It has a strong predictive quality. It is a more general explanation for how or why certain phenomena occur. It is a tentative explanation. It is a falsifiable statement.

Answers

Answer: it is supported by multiple experiments

It has a strong predictive quality

It is a more general explanation for how or why certain phenomena occur

Explanation:

The list shows the results of six athletes competing in the long jump, which has a target distance of 20 feet. 12 feet, 11 feet, 13 feet, 10 feet, 20 feet, 12 feet Which best describes the results? a. fairly accurate but not precise b. fairly precise but not accurate c. not precise and not accurate d. fairly precise and fairly accurate

Answers

Answer:

B

Explanation:

Answer:

b

Explanation:

which statement describes the cell cycle​

Answers

Answer:

I  think c

Explanation:

Answer:

It is C

Hope it helps ;)

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