PLEASE HELP IVE BEEN STUCK ON THIS FOR 3HOURS!
Describe how the banks of a river are changed over time by weathering!
PLEASE HELP I WILL MARK BRAINLIEST!!!
Answers
Answer:
The river bank can expand due to the water breaking apart which can cause sediment to move and change/erode
Related Questions
please help need asapppp!
Answers
Answer: try invasive species can change the natural habitat of the lake
Explanation:
Erin is keeping a science journal. She wrote the following paragraph that explains how light travels through different mediums. But she’s made one mistake. Which sentence in Erin’s journal is incorrect?
A ray of light passes through the air and enters the water inside a metal container. The light ray bends as it crosses the boundary between air and water. Once it hits the bottom of the container, the ray gets reflected. The reflected ray passes back through the water and enters the air without bending. In this example, the ray of light is both reflected and refracted.
Answers
Answer: The first part I think
Explanation:
Im not too sure on this one
What two gases in the atmosphere do animals and plants need to breathe and grow?
Answers
Answer: Explanation:
Plants and animals each produce the gases that the other needs to live. Plants need carbon dioxide—people and other animals exhale carbon dioxide as a waste product. People and other animals need oxygen—plants produce oxygen during an important process called photosynthesis, which turns the sun's energy into nutrients.
The law of conservation of matter states that matter can be neither created nor destroyed. Your friend shows you the following chemical equation: The equation was CaCO3 →CaO+CO2
He says that because the oxygen atoms are split between two different molecules in the products, the equation does not support the law of conservation of matter. Is your friend right? Explain your answer. Draw a model showing the number of each type of atom in the reactants and products. Use your model to explain your answer.
PLEASE HELP
Answers
Yes, our friend is right, because there is no contradiction to the law of conservation of mass in the above equation. It just the mass of the product is equal to the mass of reactants.. and that is shown in the equation you have presented earlier
Answer:correct
Explanation:
Using proper units is important when recording data. In this lab, you determined three properties of the objects: mass, volume, and density. What are the units for each property?
The units used for mass were
The units used for volume were
The units used for density were
Answers
Answer:
The units used for mass were
✔ grams
The units used for volume were
✔ cubic centimeters
The units used for density were
✔ grams/cubic centimeter
Explanation:
check marks show i got it right
Answer:
The units used for mass were
✔ grams
.
The units used for volume were
✔ cubic centimeters
.
The units used for density were
✔ grams/cubic centimeter
.
Explanation:
Lab Report
Motion and Forces
It’s time to complete your Lab Report. Save the lab to your computer with the correct unit number, lab name, and your name at the end of the file name (e.g., U4_ Lab_MotionAndForces_Alice_Jones.doc).
Introduction
What was the purpose purpose of the experiment?
The purpose of the experiment is to test the hypothesis.
What were the independent, dependent, and control variables in your investigation? Describe the variables for each part of the experiment.
Write a hypothesis based on observations and scientific principles.
Type your answer here:
Experimental Methods
What tools did you use to collect your data?
Questionnaires and observations.
Write your procedure. List each step so that another student could follow the procedure and repeat your experiment.
Type your answer here:
Data and Observations
Record your observations.
Type your answer here:
Conclusions
What conclusions can you draw about how the sum of forces acting on an object affect its motion? Write an evidence-based claim.
Type your answer here:
Which mass, A, B, or C, was the greatest? Use the observations from your experiment and your knowledge of Newton’s laws of motion to write an evidence-based claim.
Type your answer here:
Make a model that shows the forces acting on two blocks on a flat, frictionless surface:
A 1 N block at rest
A 1 N block with 2 N of force applied in one horizontal direction
Include arrows to represent the forces and labels to indicate the magnitude of each force. Use your model to compare and explain the motion of each block.
Type your answer here:
Answers
Answer's C
Explanation: The matter that surrounding this whole planet or time and frequencies the motion and forces that people can't determine unless made a hypothesis
who was your favorite descendants cast member
Answers
Answer:
dove cameron of course
Explanation:
How is the levitation of the SCMagLev train achieved? Just write a sentence.
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Answer:
The SCMaglev (superconducting maglev, formerly called the MLU) is a magnetic levitation (maglev) railway system developed by Central Japan Railway Company (JR Central) and the Railway Technical Research InstituteAnswer:
In the case of passive levitation, the levitating-effect is achieved by speed.
Explanation:
Please can someone help me need help with these 5 questions!! and QUICK!
I need it done REALLLLLYYYYY soon!! (more like now but-)
(20 points for the answer to all of them)
Answers
Answer:
10. dependent as a change has occurred which has affected something else which is measurable.
11. dependent as a change is made to the environment this is why some species cannot live there as they have adapted to the climate.
12. Dependent due to change occurring it has resulted in the population decreasing which is measurable.
13. Dependent as the animal's and plants' survival is reliant on the environment.
14. Dependant as the plants require sunlight for photosynthies
Answer:
All are dependent
Explanation:
List the rock layers from oldest to youngest
Answers
Answer:
I,J,h,g,f,e,d,c,b,a
Explanation:
I,j,h,g,f,e,d,c,b,a
Ok, what determines the color of light?
A. pitch
B. amplitude
C. frequency
D. compressed speed
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Explanation:
C . frequency
is the correct answer I think .
Answer:
I wanna say a or B not to sure tho
Explanation:
if i was travelling 2.2 miles per second how long would it take to travel 22 trillion miles?
Answers
A meteor falls toward Earth's surface. Given that the acceleration due to
gravity is 9.8 m/s^2, what is the meteor's potential energy if it has a mass of 10
kg at an altitude of 400 m?
O A. 408 J
O B. 7,840,000 J
O C. 2J
O D. 39,200 J
Answers
Answer:
39,200J
Explanation:
just took the test
The meteor's potential energy if it has a mass of 10kg at an altitude of 400 m will be 39200 J
What is potential energy ?Potential Energy that depend upon the relative position of various parts of system . It is an energy possessed by an object by virtue of its position or configuration.
mass(m) = 10kg
g (acceleration due to gravity) = 9.8m/s^2
altitude(height (h)) = 400m
Meteor's Potential energy = m * g * h
= 10 * 9.8 * 400 = 39200 J
correct option will be a) 39200 J
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If you push a book against a wall hard enough, it will not slide down even though gravity is pulling it. Use what you know about Newton’s laws of motion to explain why the book is not falling. (giving away brainliest!)
Answers
f = coefficient of friction (u) X Normal reaction exerted by the surface (N)
So, f = u X N.
Now 'u' is a constant for given surfaces in contact ( keep in mind that it depends on both the surfaces that are in contact with each other, here wall and the book that you are pressing)
Now, Normal reaction is equal and opposite to the force exerted by an external force on the surface, PERPENDICUAL TO THE SURFACE ( or the perpendicular component of the external force). The external force exerted on the surface which is vertical to it, in this case, is equal to the force that you are applying while you are holding/pressing the book against the wall.
So, at any point of time, frictional force = u X (Force you are applying on the surface, via the book)
Or, f = u X F, where,
f = frictional force,
u = coefficient of friction, and
F = Perpendicular component of the force exerted by you on the book towards the surface.
Now direction of f -
Frictional force always act parallel to the surface and in opposite direction to the direction of motion.
In absence of friction, book will fall down, because of gravity acting on it. So friction will try to act in the opposite direction of this motion. So, upwards in this case.
If let's say you have a metal object placed between magnets, which is applying more force on it than gravity, in upwards direction; and you try to press it against the wall, the motion of object will be upwards, so friction will then act downwards.
Friction always opposes the direction of motion in which the object would have moved because of RESULTANT FORCE on it in absence of friction.
Takeaways in English (or, common observation) -
1) Harder you press the book against the wall, harder it will be for a person to move the book on the surface of the wall, while you are pressing it. Because of higher friction.
2) The more you move the book on the wall, while keep on pressing it, warmer the surface of the book which is in contact with wall will be. Because if more energy is dissipated per second to overcome friction, which gets converted to heat energy.
2.1) Harder you press, book will heat up faster.
3) Harder you press the book against the wall, lesser chance are that it will fall down. Because more frictional force is now acting on it to hold it against gravity.
4) Heavier the book, more frictional force is needed to hold it from falling, and that is why you have to press it harder to hold Heavier books.
5) That is all I can think of right now. Try applying this concept in things you see around.
12.8K viewsView 6 Upvoters · Answer requested by Muhammad Shouman
Related Questions (More Answers Below)
Explain why thermal and electrical conductivity is so high with copper.
Answers
Answer:
Free electrons
Explanation:
Copper is a lattice of positive ions with free electrons moving between them
Which of these statements describe friction? Check all that apply. Friction allows objects to slide over each other without any resistance. Friction resists motion. Friction is a force that acts from a distance. Friction is a contact force. Friction is caused by microscopic bumps and ridges on surfaces.
i'll give you a brainlest!
Answers
Answer:
→ Friction resists motion
→ Friction is a contact force.
→ Friction is caused by microscopic bumps and ridges on surfaces.
Explanation:
As the normal force, the friction is a contact force because it result when two objects interact by a direct contact, that is, touching to each other. Friction is important in everyday life and resists motion. For example, the oil in a car engine minimizes friction between moving parts, but a car can move because the friction between the tires and the road, but what about the microscopic level? well, as the normal forces friction forces result from the intermolecular forces between two rough surfaces at points where they come into contact and they are electrical in nature.
Why can't ppl's parent's just accept you for who you are??
Answers
Answer:
is this a physics questions???
and i didnt get u btw
Answer the following questions in the essay box below.
Why does the coil keep spinning?
Which way is electricity flowing?
Answers
Answer:
The coil keeps spinning because of the interaction between the magnetic field generated by the flow of electricity in the coil and the magnetic field of the permanent magnet surrounding it. This interaction creates a force that causes the coil to rotate continuously.
As for the direction of the electricity flow, it depends on the design of the coil and the direction of the magnetic field. If the coil is connected to a direct current (DC) source, the electricity will flow in a single direction. If the coil is connected to an alternating current (AC) source, the direction of the electricity flow will change periodically, typically many times per second.
In general, the direction of the electricity flow can be determined using Faraday's law of electromagnetic induction, which states that a changing magnetic field will induce an electromotive force (EMF) in a conductor, which will cause electricity to flow in the conductor. The direction of the induced EMF and the resulting electricity flow will depend on the direction of the changing magnetic field and the direction of the coil.
Explanation:
Answer:
The inertia of the rotating coil carries it through half of a turn, past the insulating paint. When the electric current starts to flow again, the twisting force is in the same direction as it was before. The coil continues to rotate in the same direction.
The permanent magnets exert forces on the electrical currents flowing through the loop of wire.
Brandon has a Nissan GTR. He drives 198.5 miles in 2.3 hours. What is his average speed?
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Which of the following best defines speed?
It is an object's speed at a specific point in time.
It is the distance traveled by an object in a specific direction.
It is a measure of how far an object moves over a certain amount of time.
It is the total time over the distance.
Answers
It is a measure of how far an object moves over a certain amount of time
Explain why an X-linked recessive trait is expressed more commonly in males than in females.
Answers
Answer:
X-linked recessive inheritance
A male with a mutation in a gene on the X chromosome is typically affected with the condition. Because females have two copies of the X chromosome and males have only one X chromosome, X-linked recessive diseases are more common among males than females.
#1. How does a topographic map help an architect?
A It shows where to build a structure.
B It shows how to build a structure.
C It shows the elevation of a building site.
D It tells the builder how the architect wants the parking lot.
#2. How do plants help in erosion control?
A Plant roots hold the soil in place.
B Plants are pretty and keep the neighborhood from being ugly.
C Plants don't help in erosion control.
D Plants allow the soil to float in the rainwater.
#3. The term deposition is used in paragraph 4. Based on context, this term means ____________.
A laying down of sediments
B erosion control
C silt fences
D landslides
#4. How do satellite views help scientists?
A They give scientists the ability to predict catastrophic events.
B Satellite cameras are not good enough to really be helpful.
C They allow scientists to know where valuable minerals are located.
D They allow scientists to see changes as they happen.
Answers
1. C
2.A
3.A
4.A
Compare and contrast the THEME in the short story you read with the elements appearing in The Watsons Go to Birmingham—1963. Explain how they are similar or different in a few sentences.
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Answer: I am so sorry but I am not sure I have spent 15 minutes trying to figure this out
Explanation:
4.16 Lab: Motion and Forces
LOOK AT THE PHOTOS BELOW
Answers
An object's velocity is altered by a net force, and acceleration increases with net force. To accelerate to the same amount as being less massive objects, more massive objects need greater net forces.
What constitutes each of the four categories of forces?Any of the four fundamental forces—gravitational, electromagnetic, strong, & weak—that control how objects or particles interact as well as some particle decay—also known as the fundamental interaction is referred to as a fundamental force in physics. These basic forces serve as the foundation for all known natural forces.
Which are the main categories of force?Both contact forces & act at the a distance forces fall under the category of force. You employ force on a daily basis. Basically, force is push and pull. You exert force on an object when you push or pull it.
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Describe 3 factors an engineer should take into consideration when choosing material for building the pipes in a pipeline
Gr. 8
Think it has something to do with Viscosity, Density, and Pressure but not sure what
Answers
Answer: 1. Material being transported 2. The temperature of the material being transported 3. How long the pipes will be there (lifespan)
Explanation: 1. - The pipe builder should consider the material being transported to choose the correct material of the pipes to use, so they last long and can hold the material.
2. - Similar to 1, the pipe builder should consider the temperature of the material to choose the correct material of the pipes to use, so the pipes don’t break and function properly.
3. - If the pipe builder uses a material that can hold the material, that’s great! If that material will last a short time, it would not work if the pipes were to be used for a long time.
The things you said before about viscosity, density, and pressure are also correct. The correct answers are mainly talking about factors of the material being used in the pipes.
hope this helped :)
an elastic material offers no resistance to forces that changes its shape
true or false
Answers
Answer:
Explanation:
FALSE
An elastic material like a rubber band or a spring definitely extends some resistance to its change.
However, in the case of non-elastic materials like hard plastic, the excess pressure results in the breakage of the material, whereas in the case of elastic materials, the excess pressure results in deformation of the shape.
i think thats the correct answer
how does a free fall drop ride work with newtons 3rd law?
Answers
Answer:
A falling object is in free fall when the only force acting on the force is gravity.
Explanation:
Because the only force acting on you is gravity, the scale no longer is pushing your cart up. Or in other words - your no longer pushing down onto the scale.
Iron(III)oxide reacts with carbon monoxide to produce iron and carbon dioxide
- How many moles of iron (Fe) are produced from 1.8 moles of iron(III)oxide (Fe2O3)?
- Using your answer from the question above, how many molecules of iron is present in
that number of moles ?
Answers
Answer:
- 3.6 moles Fe
- 2.2 x 10²⁴ molecules Fe
Explanation:
First, you need to create the balanced chemical equation.
The unbalanced equation:
Fe₂O₃ + CO -----> Fe + CO₂
Reactants: 2 iron, 4 oxygen, 1 carbon
Products: 1 iron, 2 oxygen, 1 carbon
The balanced equation:
Fe₂O₃ + 3 CO -----> 2 Fe + 3 CO₂
Reactants: 2 iron, 6 oxygen, 3 carbon
Products: 2 iron, 6 oxygen, 3 carbon
Now that we have the balanced equation, we can use the mole-to-mole ratio (from the equation coefficients) to convert from moles Fe₂O₃ to moles Fe.
1.8 moles Fe₂O₃ 2 moles Fe
-------------------------- x ---------------------- = 3.6 moles Fe
1 mole Fe₂O₃
We can convert between moles and molecules using Avogadro's Number.
Avogadro's Number:
6.022 x 10²³ molecules = 1 mole
3.6 moles Fe 6.022 x 10²³ molecules
--------------------- x ------------------------------------- = 2.2 x 10²⁴ molecules Fe
1 mole
Which effect is created when two sound waves that are close in pitch
interact?
O A. Echoes
O B. Loudness
C. Beats
O D. Intensity
Answers
Answer:
C. Beats
Explanation:
When waves are interfering with each other, the sound is louder in some places and softer in others. As a result, we hear pulses or beats in the sound.
Answer:
beats
Explanation:
got it right
A white blood cell that destroys pathogens by engulfing them and breaking them down is called please help
A Antigen
B B-cell
C Antibody
D Phagocyte
Answers
Answer: D
Explanation: Its a type of white blood cell that moves by amoeboid