Answer:
here
volume of cube = l^3
=2cm^3
=8cm^3
now,
mass=(9.7÷1000)kg
=0.0097kg
volume=8cm^3÷100=0.08
we know that,
density=mass/volume
= (0.0097/0.08)kg/m^3
= 0.12125kg/m^3
Explanation:
the formula to calculate volume of cube is l^3 so here we find the volume of cube using this formula and then we convert gram into kilogram then convert cm into m then by applying the formula of density we find it density
A 2 cm cube made of acrylic has a mass of 9.7 g. The density of the acrylic is 0.12125 kg m3
What is density?Density is the mass of per unit volume.
[tex]Volume of cube = l^3\\=2cm^3\\=8cm^3[/tex]
mass 9.7 kg, converted into kilograms = 0.0097kg
[tex]Volume \;= \dfrac{8cm^3}{100} = 0.08[/tex]
Calculating the density
[tex]Density = \dfrac{mass}{volume} \\\\\dfrac{0.0097}{0.08} = 0.12125\;kg\;m^3[/tex]
Thus, the density of the acrylic is 0.12125 kg m^3.
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A solution of sodium iodide is added to a solution of potassium nitrate to make a potassium iodide precipitate and a sodium nitrate solution?
Key Words
KNO3
NaNO3
KI
NaI
Answer:
NaNO3
Explanation:
Sorry If its incorrect
The addition of a solution of sodium iodide and potassium nitrate has been the displacement reaction.
The reaction has resulted in the formation of the precipitate of Potassium iodide and Sodium nitrate.
The chemical equation for the reaction can be:
[tex]\rm NaI\;+\;KNO_3\;\rightarrow\;NaNO_3\;+\;KI[/tex]
The reaction has been an exothermic reaction with the formation of the pale yellow precipitate of the potassium iodide.
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(06.05 LC)
What makes the results of a scientific experiment accurate? (5 points)
Having multiple trials
Lacking any supporting data
Working in a lab
Using a hypothesis that is always true
Answer:
having multiple trials
Explanation:
I hope this helps :)
Answer:
the other person is right :)
Explanation:
Suppose a dam was built that prevented melted snow from reaching streams and rivers below a series of mountains. How may this affect the water cycle?
Answer:
The water may not fall for a while because the water that dosen't go down the stream won't be able to evaporate. So rain clouds won't form in that area.
Explanation:
I hope I helped.
How does the ocean currents change the air temperature?
NOT TAKING ANSWERS FROM G00GLE
Answer:
sending heat toward the polar regions
Explanation:
PLEASE HELP MEEE I WILL MARK BRAINLIST FOR THIS ITS SUPER SIMPLE....BUT U MUST TYPE EVERYTHING needed ASAP
all I need you to do its to type out these pictures word for word it pretty simple
Other Causes of Extinction
In addition to habitat destruction, other human-caused problems are also threatening many species. These include issues associated with climate change, pollution, and over-population.
Habitat Destruction
Your habitat can be altered, and you can easily adapt. Most people live in a few different places and go to a number of different schools throughout their life. But a plant or animal may not be able to adapt to a changed habitat.
Humans often destroy the habitats of other organisms. Habitat destruction can cause the extinction of species.
Extinction is the complete disappearance of a species. Once a species is extinct, it can never recover.
Invasive Species
As we have learned earlier in the unit, invasive or non-native species can also change an ecosystem.
When invasive species enter an ecosystem they change that ecosystem's dynamic and cause a disruption to the flow.
Climax Community
A climax community is the end result of ecological succession. The climax community is a stable balance of all organisms in an ecosystem, and will remain stable unless a disaster strikes.
Human Activity
It's important to note that human activity has the greatest impact on the amount and quality of wildlife habitat in many areas of the world. Wildlife habitat can be destroyed or its quality diminished as a result of urban growth, agricultural practices, pollution, or habitat destruction.
People can also have a positive impact on wildlife populations through improvement and protection of habitat or ecosystems. Planting trees and shrubs and providing sources of food and water in individual yards is one way people can help wildlife.
Why do people mix up weather and climate?
Answer:
The difference between weather and climate is a measure of time. Weather is what conditions of the atmosphere are over a short period of time, and climate is how the atmosphere "behaves" over relatively long periods of time.
Explanation:
please mark this answer as brainlest
Answer:
Weather and climate are not the same things, yet we might get confused between the two.
Explanation:
sorry if this does not answer your question
Which medical condition(s) can prevent molecules from entering the cell?
Answer:
Explanation:
any type of spreading disease that kills
Answer:
The cell membrane's main trait is its selective permeability, which means that it allows some substances to cross it easily, but not others. Small molecules that are nonpolar (have no charge) can cross the membrane easily through diffusion, but ions (charged molecules) and larger molecules typically cannot.
Explanation:
pease mark this answer as brainlest
WILL MARK BRAINLIST FOR BEST ANSWER!!!
What things can cause extinction of a species?
Answer:
Demographic and genetic phenomenon
destruction of habitat
introduction of invasive species
climate change
hunting and illegal trafficking
What are the genotypes and phenotypes of the offspring in this image?
Answer:
Genotypes: Hh, Hh, hh, and hh
Phenotypes: Short Hair, Short Hair, Long Hair, Long Hair
Have a nice day! ^-^
Explanation:
Genotypes:-Hh, Hh, hh and hh
Phenotypes:-Hh = Hh = May be long hair or short hair
hh = hh = Short hair
So,
Mainly phenotypes are Long hair, long hair, short hair and short hair.
Nicolaus Copernicus was a Polish astronomer who is best known for the theory that the sun is near the center of the universe and that the earth and other planets revolve around it. Copernicus did not believe that the planets were influenced by or revolved due to the sun; instead he believed that the sun was located near the center of the universe and that it was this center which influenced those bodies and caused them to revolve. When this theory was first published, the scientific community did not accept it. Which reason BEST explains the reason for rejection of this theory? A) It was not published until his death. B) It was not understood by scientific world. C) It lacked sufficient evidence and explanation. D) It lacked practical examples in supporting theory.
It is B nevermind I thought it was c but it wasn't.
Answer:
So hey Which one was it ?
Explanation:
What is the smallest unit of an element that retains the properties of that element?
A.Eletrons
B.Molecule
C.Neutron
D.Atom
Answer:
Atom
Explanation:
The smallest unit which maintains an element's properties is an atom.
I NEED THIS ASAP
Describe or define transform plate boundary
What is a medium? In science.
Answer:
A medium is a substance that allows any material to travel through it.
Explanation:
compare the properties of the moon to those of earth
Alfred Wegener proposed the theory of continental drift around 1912. Which of these components of his theory is now known to be FALSE?
Select one:
a. Similar plants and animals live on continents separated by oceans.
b. All existing continents were once joined into a supercontinent.
c. The boundaries of many neighboring continents fit together.
d. The Moon’s gravity and Earth’s spin can move the continents.
The component of Alfred Wegener's theory that is known to be false is as follows:
The Moon’s gravity and Earth’s spin can move the continents.Thus, the correct option for this question is D.
What is continental drift?Continental drift may be defined as the process of the gradual movement of continents as the result of the motion of tectonic plates. It is a type of hypothesis that illustrates that the Earth's continents have migrated over geologic time with respect to each other.
This theory by Alfred Wegener demonstrates that similar kinds of plants and animals live on continents separated by oceans. According to him, all existing continents were once joined into a supercontinent known as Pangea. The boundaries of many neighboring continents fit together due to the gradual splitting of Pangea.
Therefore, the Moon’s gravity and Earth’s spin can move the continents is the component of Alfred Wegener's theory that is known to be false. Thus, the correct option for this question is D.
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Describe how sound waves travel through a solid, liquid, and gas. Why does it move differently through these different mediums?
Answer:
Sound travels more quickly through solids than through liquids and gases because the molecules of a solid are closer together and, therefore, can transmit the vibrations (energy) faster. Sound travels most slowly through gases because the molecules of a gas are farthest apart.
hope this helps.
Select the statement below that best describes how environmental conditions affect an individual’s likelihood of survival and reproduction.
Explain why you chose the answer you did to the question above.
What's wrong with Danny? Danny is 13 years old and loves to ride dirt bikes. On Saturdays Danny would meet with his friends at Tony's pizza shop before they went to the track. One day Danny noticed that every time he ate he started feeling sick. His stomach starts to hurt and he had diarrhea. Plus, he was always tired. Danny's mom took him to the doctor to see what was wrong. Doctor Lawson conducted multiple test and realized that Danny's digestive system wasn't functioning properly. He was not producing enough digestive enzymes. What could be wrong with Danny? What medical condition does Danny have?
A solution that contains more OHions than H30+ ions, is called a(n)... O A. base O B. acid O C. neutral solution O D. isosolution
Answer:
a
Explanation:
Name two positive effects caused by high biodiversity.
Answer:
Biodiversity boosts ecosystem productivity where each species, no matter how small, all have an important role to play. For example, A larger number of plant species means a greater variety of crops. Greater species diversity ensures natural sustainability for all life forms.
Explanation:
Answer:
CLIMATE CHANGE AND ECO SYSTEM
Explanation:
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Please help
Will give brainliest
A - 1
B - 2
C - 3
D - 4
E - 5
Answer:
B-2
Explanation:
In the graph you can so that two of the shapes ae fully black, that means that they are color blind, the half colored ones means they are a carrier but they aren't color blind. So two males in the offspring are color blind.
Explain the concept of the conservation of mass during a change in the state of matter.
Answer: The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations. According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.
Answer:
The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations. According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants. this is what I think I hope I didn't get the same answer as anyone else.
Explanation:
what is the third largest asteroid in the asteroid belt with a diameter of 267 miles
ONLY ONE
ANSWER
20 points I will give you brainliest if you answer in 5 mins
How is an image formed by a plane mirror?
A) Light bounces off of the mirror and then appears to come from in front of the mirror.
B) Light passes through the mirror and then appears to come from behind the mirror.
C) Light passes through the mirror and then appears to come from in front of the mirror.
D) Light bounces off of the mirror and then appears to come from behind the mirror.
Answer:Light bounces off of the mirror and then appears to come from behind the mirror.
Explanation:Plane mirrors form images that are virtual, upright and the same size and shape as the object it is reflecting.
When rays of light from the object hits a plane mirror they bounces off the mirror,that is they undergo reflection, and appear to originate from behind the mirror, resulting to the formation of a virtual image.
The image formed appears to be behind the plane in which the mirror lies. A virtual image is an image that is formed at a location from which the rays of light appear to come from. The image can not be formed on a screen..
no link just right answer
Answer:
I think it is C since the trees hold the habitats of the animals and provide cover so with less animals there is less diversity.
Please Help me on this question
A wellington has higher tempatured and more precipitation
B Wellington has higher tempatures and less precipatation
C Wellington has lower tempatures and less precipatation than nairobi
D Wellington has lower tempatures and more precipatation than Nairobi
Based on their climate zones, which statement best compares the climates of Wellington and Nairobi?
ASAP LIKE RIGHT NOW
What is the frequency of a wave?
Answer:
The number of waves that pass a fixed point in a given amount of time
Explanation: