Which prediction will most likely describe how friction will affect her findings? The distance for Trial 3 will be greater than the distance for Trial 1 partly because the weight difference of the balls will affect friction. The distance for Trial 2 will be greater than the distance for Trial 1 because the difference in surface roughness will affect friction. The distance for Trial 4 will be greater than the distance for Trial 2 partly because the weight difference of the balls will affect friction. The distance for Trial 3 will be greater than the distance for Trial 4 because the difference in surface roughness will affect friction.
Answers
The complete question is :
Charlie is investigating friction. She will use the same amount of force to push two wooden balls across two level surfaces. Then she will record her results in the table below.
Which prediction will most likely describe how friction will affect her findings?
Answer:
The distance for Trial 3 will be greater than the distance for Trial 4 because the difference in surface roughness will affect friction.
Explanation:
The frictional force depends greatly on the roughness of the body surfaces. It acts opposite to the direction of motion when two body surfaces have a relative motion between them.
In the context, equal mount of force is applied to push the wooden balls. So the net force which acts on the balls are :
F' = F - f
Here, F = the force applied
f = force of friction
And f = μ.N (N = reaction force)
Here μ is the coefficient of friction that depends on the surface roughness. The frictional force will be less when the surfaces are smooth. Thus for the trails 3 and trial 4, the distance for trail 3 would be greater than trail 4 as the surface is polished and would offer less friction.
Answer:
D
Explanation:
Related Questions
the greater the difference between dry bulb and wet bulb, the (blank) the dew point
Answers
(Urgent!) Explain how laundry detergent can be a product of biotechnology.
Answers
Answer:
Another important class of compounds produced by biotechnology is enzymes. One of the most significant commercial enzymes of this type is subtilisin, which is produced by a bacterium because many stains contain proteins, the manufacturers of laundry detergents include subtilisin in their product.
Explanation:
(please mark me brainliest if you can)
Answer:
Explanation:
Most biological laundry detergents contain lipase and protease enzymes, both of which are found in the body. Lipases break down fats and oils, while proteases work to break down protein chains. Their ability to break down these compounds makes them excellent for stain removal.
A ____ surface will absorb all colors.
A green surface will absorb all colors and reflect ____
Answers
Answer:
A Black surface will absorb all colors.
A green surface will absorb all colors and reflect green.
=> Any surface which absorbs all the colors appear to be black because no color is reflected.
=> A surface color is a color which is reflected by it.
For example:
If a surface is red colored, This means that it reflects red color. That's why it appears to be red.
[tex]\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807Which organisms convert nitrogen into a form that is usable by humans?
A. Bacteria
B. Omnivores
C. Plants
D. Algae
Answers
help me please, i just need the answers
Answers
Answer:
My Brain ;(
Explanation:
The sides of a DNA molecule are made up of sugar molecules alternating with ___________ molecues.
Answers
Answer: phosphate
Explanation:
Deoxyribose nucleic acid, which is commonly referred to as DNA simply carries genetic information in an organism. The m DNA is made up of two nucleotides strands.
Nucleotides are simply the DNA's building block. It should be noted that the sides of the DNA consist alternating sugar molecules and the phosphate groups.
4. Would a mutation in a red blood cell be passed on to offspring? Explain your answer
Answers
Answer:
The mutation that takes place in the somatic cells are not carried from one generation to another generation. The mutation in the red blood cells cannot takes place because the red blood cells does not have nucleus in them.
Explanation:
Mutations occuring in somatic cells can not be carried from one generation to another. Mutations within red blood cells are unable to take place because the red blood cells themselves don’t contain a nucleus.
_________ percent of total water withdrawals come from surface water.
85
79
34
Answers
Answer:
79
Explanation:i hope this the answer i looked it up
how a plant might make the products of photosynthesis (c6h1206 + 602) from the reactants (6c02 + 6h20
Answers
Answer:
by water and sun
Explanation:
please brilliant me and thank me thanxs
what will happen to OTHER ORGANS if kidneys malfunction due to certain disease
Answers
Answer:
when your kidneys get affected in a negative way waste products start to build up in your body. It can cause some breathing troubles, poor sleep, weakness in your body,etc.
Explanation:
An organism with alleles Dd for eye color can display either the dominant or recessive trait?
Answers
which of the finches in the
diagram above is most likely to have adapted to an area where the main
food source is large, hard seeds?
А
(4)
B
(3)
с
(2)
D (1)
Answers
Answer:
I1
Explanation:
explain how plants are involved in the carbon cycle
Answers
PLZZ HELP ME IF I GET IT WRONG I GET A D!!!!!!!!
Answers
Answer:
Meiosis gives AA or BB
but the question is blur
answerrrrrrrrrrrrrrrrrrrrrrrrr
Answers
Answer:
What is the question?
Explanation:
Which phylum contains the largest multicellular forms of algae? In what way are these algae commercially important? Please help me :,)
Answers
Answer:
Phylum Rhodophyta and phylum Ochrophyta.
Explanation:
Phylum Rhodophyta and phylum Ochrophyta are the phylum that contains the largest multicellular forms of algae. Algae belongs to phylum Rhodophyta also called red algae are used for commercial production of food and gels while on the other hand, algae of phylum Ochrophyta also known as brown algae are used to produce alginates, which are used as food additives in different products and as a thickening material.
Relate the surface area of a cell to the transport of materials.
Answers
If the size of a cell increases it will be more difficult (all other things being equal) for diffusion to transport materials out of the cell. Therefore, less of the cell's interior will be able to come in contact with the cell's surface. If less of it comes in contact, less of it can cross the cell membrane.
hope this helps and please mark me as brainliest please
Sandra is heterozygous for eye shape.
What does this mean?
She has two of the same alleles for eye shape, one from each parent.
She has two different alleles for eye shape, one from each parent.
She has only one allele for eye shape, which she received from one parent.
She has two alleles for eye shape, both from the same parent.
Answers
Awnser:
She has two different alleles for eye shape, one from each parent
You always receive 1 allele from each parent, and you're heterozygous, those alleles are different.
Sandra is heterozygous for eye shape, this means she has two different alleles for eye shape, one from each parent. The correct option is b.
What is heterozygous?Heterozygous means the person who has different alleles from each parent for the same type of character. There are two types of people, heterozygous, which contain different alleles for the same character. Homozygous, which means he has only one allele for one character.
Sandra has two alleles for eye shape, which means she got different eye shapes from her father and mother. She got two eye shapes, and now the allele which is dominant will be shown in her phenotype of Sandra. The other will be recessive.
Therefore, the correct option is b, She has two different alleles for eye shape, one from each parent.
To learn more about heterozygous, refer to the link:
https://brainly.com/question/3258389
#SPJ6
What are some things humans are doing to stop climate change in the tundra biome?
Answers
Answer:
The correct answer would be- reduced human interference to the habitat.
Explanation:
The Tundra Biome is a biome with an extremely cold region with little precipitation, short growing seasons, very poor nutrients. The Tundra biome is at risk due to global warming, which harms, plants and animal species and the ecosystem of the biome.
low carbon emission by reducing planet-warming pollutants by reducing the fossil fuels is key to safeguarding Earth's tundra habitats and liting industries are the
Answer: Tundra is the coldest biome on Earth.
Explanation:
It has become sensitive to the trend of global warming the surface air temperature has risen by 0.9 °C. Many regions have experiences the record breaking high temperature in otherwise winter months since 20 century. Tundra natural fires release carbon dioxide gas in the atmosphere. The climate of Tundra can be changed by human efforts. Some activities like reducing the use of fossil fuels which release green house gases like carbon dioxide, and others which warm up the atmosphere, banning the industrial activities nearby regions, and protection of certain species affected by the rising temperature.
Name two models used
to show the transfer of
energy in an ecosystem
Answers
Answer:
Flow of Energy can be explained by means of two models namely: single channel energy model and Y-shaped energy model.
Hope this helps :)
Which statement accurately describes the energy needs for cellular respiration and photosynthesis?
A. Solar energy is needed for cellular respiration but not for photosynthesis.
B. Solar energy is needed for photosynthesis, and chemical energy in the form of glucose is needed for cellular respiration
C.Chemical energy in the form of glucose is needed for photosynthesis, and solar energy is needed for cellular respiration.
D. Chemical energy in the form of glucose is needed for both cellular respiration and photosynthesis,
Answers
Answer:
A
Explanation:
As we know that the leaves of plants are waterproof due to cuticle. On the same way, take
some pieces of paper of leaf size and make them waterproof. After completion, put half of these
paper pieces in cold water and half in hot water. Do all the pieces of paper remains waterproof?
Explain your observations and results with justifications
Answers
no because the outside laters become cold or hot and it loses its waterproofing.
Question 9
How do animals get nitrogen that is stored in the soil?
O A) Animals do not take in the nitrogen stored in the soil.
O B) Bacteria change the nitrogen into a gas that the animals breathe.
OC) Plants ab orb the nitrogen from the soil and animals can eat the plants.
O D) The animals can eat the soil and absorb the nitrogen through their digestive system.
Answers
Answer:
the answer is C
Animals get the nitrogen they need by eating plants or other animals that contain nitrogen. When organisms die, their bodies decompose bringing the nitrogen into soil on land or into ocean water. Bacteria alter the nitrogen into a form that plants are able to use
Can anyone eXpLaiN what competition, mutualism, parasitism? Please and thank you. <3
Answers
Answer:
parasitism is when one animal harms another like a parasite. for example mosquitos and humans have a parasitism relationship because mosquitos harm humans. in total parasitism means the relationship in which one benefits and the other is harmed. mutualism is when both benefit and no on is harmed. an example of mutualism is when oxpecker (a kind of bird) eats the bugs off of a rhino, the rhino gets pest control and the bird gets food. and competition is the relationship between organisms that need and search for the same resources in the same place. for example predators of different species search for the same prey.
i hope this helped!!
Explanation:
in total parasitism means the relationship in which one benefits and the other is harmed
mutualism is when both benefit and no on is harmed.
competition is the relationship between organisms that need and search for the same resources in the same place
if something needed to enter the cell and couldn't go through the phospholipid bilayer, how else could it enter the cell?
Answers
Answer:
Through facilitated diffusion
Explanation:
A molecule that finds it difficult to enter through the cell membrane's phospholipid bilyaer can be assisted in doing so through a process known as facilitated diffusion.
Ordinary diffusion will not permit the movement of molecules against a concentration gradient or molecules can be prevented from passing the phospholipid bilayer due to their sizes/charges. Within the phospholipid bilayer exists special passages lined with carrier or channel proteins.
These proteins facilitate some molecules that will ordinarily not pass through the bilayer to pass through their special passages. This process is referred to as facilitated diffusion.
What are the chances of a child with brown eyes? *
Answers
Answer:
Each child has a 25% chance of having brown eyes and a 75% chance of having blue eyes.
Explanation:
I added the little bit of extra info just to be helpful
HELP!!!!!
Scientists claim that climate change is happening because Earth is warming. They
also claim that humans have helped cause the warming by adding greenhouse
gases to the atmosphere. Other people claim that Earth is not experiencing climate
change because some winter days are still very cold.
Use evidence to evaluate each
claim about climate change.
Answers
Answer:
both right in own way
Explanation:
first;green house gas obviously helps to increase temperature of earth.
second;some winter days are still very cold because of global warming. this is also due to such work which helps to increase temperature of earth as well as climate change.
Answer and Explanation:
first;green house gas obviously helps to increase temperature of earth.
second;some winter days are still very cold because of global warming. this is also due to such work which helps to increase temperature of earth as well as climate change.
which would best explain how tobais contracted mononucleosis
Answers
Answer:
Tobias drank from a water fountain that was contaminated.
Explanation:
Infectious mononucleosis is a disease caused by a virus and is also known as kiss disease. The virus that causes the disease is transmitted through saliva, so it is most often transmitted by kissing, but it can also be transmitted by sneezing, coughing, using the same cup or cutlery with an infected person.
can anyone help me plz
Below is a photo of algae, microorganisms that live in water.
What is the role of these organisms in their environment?
A. They produce food that other organisms eat.
B. They return nitrogen gas to the atmosphere.
C. They break down the wastes of other organisms.
D. They cause diseases in many kinds of animals,
Answers
They produce the food web for all aquatic organisms. So, I would go with A, but I am bot sure.
Good luck!
name the organ that is adapted for gaseous exchange in humans
Answers
Answer:
Lungs.
Explanation:
Lungs are the organs that are responsible for gaseous exchange in humans. The lungs absorb oxygen from the air that is required for the process of respiration while on the other hand, carbon dioxide is transferred from the cells to the lungs through blood because carbondioxide gas is a waste material that is produced during respiration so it can be removed from the body with the help of lungs..