Answer:density
=
2.9
g/cm
3
Explanation:
We're asked to find the density of the rock, given some mass and volume information.
We're given that the mass of the system before the rock was added was
120
g
. The mass after the rock was added was
250
g
, so the rock's mass is
m
rock
=
m
final
−
m
initial
=
250
l
g
−
120
l
g
=
130
l
g
−−−−−
The initial volume of water in the graduated cylinder was
30
mL
, and the volume after the rock was added read
75
mL
, so the rock's volume is
V
rock
=
V
final
−
V
initial
=
75
l
mL
−
30
l
mL
=
45
l
mL
−−−−−−
The equation for the density of the rock is
density
=
mass
volume
And so we have
density
=
130
l
g
45
l
mL
=
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
∣
∣
∣
2.9
l
g/mL
=
2.9
l
g/cm
3
∣
∣
∣
−−−−−−−−−−−−−−−−−−−−−−−−−
Explanation:
Which situation shows where potential energy and kinetic energy are balanced?
Group of answer choices
A stopped bicycle
A roller coaster car going uphill
A car moving at a steady speed
A runner slowing down
Please help ASAP ASAP ASAP ASAP ASAP ASAP ASAP ASAP!!!!!!!!!!!!!
The mouth is distal to the nose.
O True
O False
Answer:
true the answer is true
What condition is caused by carbon dioxide, methane, and water vapor trapping heat in the Earth's
atmosphere?
Answer:
Green house effect
Explanation:
Each of the following is the main idea of the theory except. *
3 points
A. all organisms are composed of cells
B. the cells is the basic unit of organization of organisms
C. all cells are similar in structure and function
D. all cells come from preexisting
Answer:
C.
Explanation:
who discover the first cell
Answer:
scientist Robert Hooke
Explanation:
Interested in learning more about the microscopic world, scientist Robert Hooke improved the design of the existing compound microscope in 1665. His microscope used three lenses and a stage light, which illuminated and enlarged the specimens.
Answer:
scientists Robert Hooke
Hope this correct
Please help ASAP!
Which of these is an organic nutrient?
A) phosphorus
B) calcium
C) water
D) proteins
Answer: the answer is D
Consider these scenarios. Scenario A: Carmen reads an article in Tasty Food magazine stating that eating an apple can help you feel awake and alert. Scenario B: Yuki reads an article in the Professional Journal of Medicine stating that ginger root can help prevent some types of cancer. Which article is more likely to have been peer reviewed? How do you know?
Answer: The article read by Yuki is more likely to have been peer-reviewed because this article is part of a Journal Medicine and peer-review is mandatory in most Academic journals before publication.
Explanation:
Peer-review implies academic works such as research papers or articles are verified by peers of the author. For example, a medical article is evaluated by other experts in the same field with similar knowledge and competences. This process is essential to guarantee the information is accurate and reliable. Moreover, peer-review is used mainly in academic journals or academic papers. Indeed, most academic journals require new articles or papers to be peer-review before these are published in the journal.
In this context, it is likely the article red by Yuki has been peer-reviewed because this is part of a Medicine journal and it is a general standard for articles in journals to be reviewed. Also, this is not a requirement for articles published in regular magazines such as Tasty Food magazine.
What is the basic unit of life?
O cell
O organ
O tissue
O organ
Cell. That is what makes up all living things,
Answer:
cell.
cells are the smallest but most basic structural, functional, and biological unit of all known organisms.
Please help me fill this out
Answer:
ask goggle for more details
Answer to 43??? Please will make brainliest???
Answer:
the first answer is d then the second one is c
Explanation:
Which two cell parts are most likely found in both types of cell? Ocell wall and cell membrane O lysosome and vacuole O vacuole and centriole O lysosome and chloroplast
Answer:
The correct answer is - lysosome and vacuole.
Explanation:
In the cells of animals and plants, there are many similarities and some differences as well. These similarities and differences include the organelle they both have common or specific to a particular cell.
Lysosome and the vacuoles are two organelles found in both cells; plants, and animals. In plants, there is a central vacuole large in size whereas in the animal cells the numbers are much higher and size is smaller in size. Lysosomes are also present in both animals as well as the plant cell.
Thus, the correct answer is - lysosomes and vacuole.
Answer:
lysosome and vacuole....
The map shows the distribution of wild boars in the United States (shaded area).
A map of the United notes showing the distribution of wild boars in dark orange. Wild boars appear most often in Texas, California, and Florida, and along the southern notes.
Which of these facts about wild boars is best supported by the evidence provided?
Wild boars were brought to the United States by humans.
Wild boars have quickly spread through the United States.
Wild boars have established successfully mostly in areas with warm climates.
Wild boars have a high reproductive rate and no natural predators.
Answer:
Regarding wild boar, the fact that is best supported by the evidence provided is wild boars have established successfully mostly in areas with warm climates.
Explanation:
The wild boar (Sus scrofa) is a mammal from Africa, whose capacity to adapt to the environment is high. However, it is usually found in warm climates where it has a good supply of water and food.
According to the description of its distribution on the map, the states where it is found —predominantly Texas, California and Florida— verify the fact that they can be found mostly in warm climates, where they have found an ideal environment for their development..
About the other options:
Wild boars were brought to the United States by humans. This is true, but it is not a fact that can be deduced from the information on the map.Wild boars have quickly spread through the United States. The map does not show this information.Wild boars have a high reproductive rate and no natural predators. The map does not show this information.Answer:
c
Explanation:
took unit test
Which molecule brings amino acids to the ribosomes to be assembled into proteins? O tRNA mRNA peptide codon
Answer:
tRNA
Explanation:
on e2020 (:
The molecule that brings amino acids to the ribosomes to be assembled into proteins is tRNA. The correct option is A.
What is RNA?Ribonucleic acid is a nucleic acid found in all living cells that resembles DNA in structure. RNA, unlike DNA, is typically single-stranded.
Instead of the deoxyribose found in DNA, the backbone of an RNA molecule is made of alternating phosphate groups and the sugar ribose.
In protein synthesis, three types of RNA are involved. They are ribosomal RNA, messenger RNA (mRNA), and transfer RNA (tRNA) (rRNA). Ribosomes are required for protein synthesis and are formed by rRNA.
Transfer ribonucleic acid (tRNA) is an RNA molecule that aids in the translation of a messenger RNA (mRNA) sequence into a protein.
tRNAs function at specific sites on the ribosome during translation, which is the process by which an mRNA molecule is converted into a protein.
Thus, the correct option is A.
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when the scientist completes their prototype does the prototype need to perform the task it was intended for
Answer:
Yes because a prototype is a model of the task the scientist is trying out.
Explanation:
I think that´s the answer i did some research but ya tell me if its right.
What do you think would happen to the rates of photosynthesis of seagrass and algae if their habitat became muddied when channel clearing caused sediment to stay mixed in with the water?
Answer:
They would lose their green color
Explanation:
The light doesn't reach them because the mud is blocking it, so they can't preform photosynthesis.
what's the difference between a monomer and a polymer?
Answer:
Explanation:
Polymer means many monomers, usually, polymers are organic. Monomer is a molecule that is able to bond in long chains.
Compare and contrast mutations to gene flow.
Explanation:
Mutation, together with recombination of existing alleles provides the diversity which is the raw material for natural selection and evolution. ... Gene flow can accelerate the spread of successful alleles or reduce differences between populations.
A prehistoric object is one that comes from a time .....?
Answer: A. before history was written.
Explanation:
I'm not sure if you need an explanation, but prehistoric means "very old or out of date." Hope this helps, Good luck! :)
When a plant is placed in a hypotonic solution, they are able to maintain their upright and rigid structure. The pressure of the internal environment on the cell wall is called
Answer:
i will answer later
Explanation:
Which statement about covalent bonds is true?
A) Covalent bonds are generally weaker than ionic bonds because they form full oppositely charged particles.
B) Covalent bonds are generally stronger than ionic bonds because they form full oppositely charged particles.
C) Covalent bonds are generally weaker than ionic bonds because they overlap electrons to fill their outer shell.
D) Covalent bonds are generally stronger than ionic bonds because they overlap electrons to fill their outer shell.
The heliocentric theory suggest ____.
Answer:
The heliocentric theory suggest that the sun is the central body of the solar system and perhaps of the universe. Everything else (planets and their satellites, asteroids, comets, etc.) revolves around it. The first evidence of the theory is found in the writings of ancient Greek philosopher-scientists.
Explanation:
hope it helps!
Answer:
Earth and planets revolve around the Sun at the center of the Solar System
Question 3 A girl inherited the dominant trait of dimples but her sister did not because both parents had different Select one: chromosomes for dimples. alleles for dimples. genes for dimples. genotypes for dimples.
Based on the fact that the girl inherited the dominant trait of dimples but her sister did not, it means both parents had different genotypes for dimples.
What is a dominant trait?A dominant trait is a trait that always appear on every generation.
When the alleles for a trait are the same, the genotype is said to be h0m0zygous.
If the alleles for a trait are different, the genotype of the offspring is said to heterozygous.
Since the girl inherited the dominant trait of dimples but her sister did not, it means both parents had different genotypes for dimples.
Learn more dominant traits at: https://brainly.com/question/983987
Explain the difference between descriptive and experimental research
Answer:
Descriptive research describes the characteristics of the subject of the study and experimental research manipulates the research and the study using certain variable to come to certain conclusions.
Explanation:
Answer:
descriptive describes the characteristics of the study. Experimental research manipulates the research.
Explanation:
What is diffusion and how does it work? What is osmosis and how does it work?
Answer:
Diffusion is the net movement of anything from a region of higher concentration to a region of lower concentration. Diffusion is driven by a gradient in concentration. The concept of diffusion is widely used in many fields, including physics, chemistry, biology, sociology, economics, and finance
Explanation:
Osmosis is the movement of water through a semipermeable membrane according to the concentration gradient of water across the membrane, which is inversely proportional to the concentration of solutes. ... The semipermeable membrane limits the diffusion of solutes in the water
Answer:
Diffusion is the net movement of anything from a region of higher concentration to a region of lower concentration. Diffusion is driven by a gradient in concentration. The concept of diffusion is widely used in many fields, including physics, chemistry, biology, sociology, economics, and finance
Explanation:
Osmosis is the movement of water through a semipermeable membrane according to the concentration gradient of water across the membrane, which is inversely proportional to the concentration of solutes. ... The semipermeable membrane limits the diffusion of solutes in the water
Name the element?
Number of shells?
Valence electrons?
What kind of virus is this a phot of?
Answer:
to me it looks like Feline immunodeficiency virus
Explanation:
Which of the following lists represents cell structures that are found in both animal and plant cells?
A - Cell membrane, Golgi apparatus, Nucleolus
B - Large vacuole, Cell Wall, Chloroplast
C - Mitochondria, Flagella, Cilia
D - Lysosomes, Ribosomes, Chloroplast
Answer: b
Explanation:
The group that represents cell structures that are found in both animal and plant cells is Cell membrane, Golgi apparatus, Nucleolus. The correct option is A.
What is cell?Cells are the fundamental cornerstones of all life. Vast amounts of cells make up the human body.
They support the body's structure, absorb nutrients from food, convert those nutrients into energy, and perform specialized functions.
A cell is made up of three parts: the cell membrane, the nucleus, and the cytoplasm that lies between the two.
The cytoplasm contains intricate arrangements of fine fibers as well as hundreds or even thousands of tiny but distinct structures known as organelles.
All living things, from microorganisms to humans, rely on cells for structure and function. Scientists regard them as the tiniest form of life.
Cell membrane, Golgi apparatus, and Nucleolus are the cell structures found in both animal and plant cells.
Thus, the correct option is A.
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How is wind speed and direction related to air temperature?
Answer:
Differences in insolation with latitude create a transfer of heat from the equator to the poles with a general rule that, in the northern hemisphere, winds from the south bring warmer temperatures than winds from the north. There is also the difference between winds from the sea and winds from the land.
Explanation:
Explain the location of your biome “Tundra” ?
Answer:
tundra region having least vegetation and polar or arctic climate is found in North America and Eurasia between the southern limit of the permanent ice caps in the north and the northern limit of temperate coniferous forest of taiga climate in the south.
Explanation:
copy this and put it in it works
Question 10 of 10
A crane raises a crate with a mass of 75 kg to a height of 10 m. Given that the
acceleration due to gravity is 9.8 m/s2, what is the crate's potential energy at
this point?
A. 720 J
B. 36,750 J
C. 77 J
D. 7,350 J
Answer:
It is d
10(7 + j); when j = 1, the value is 80
that is right
Explanation: