This U-shaped valley was produced by the action of a glacier. Hence, option (C) is correct.
What is U-shaped valley?Glaciation creates u-shaped valleys, often known as trough valleys or glacial troughs. They are particularly typical of glaciation in mountains. In cross-section, they feature a distinctive U shape with steep, straight sides and a flat or rounded bottom (by contrast, valleys carved by rivers tend to be V-shaped in cross-section).
Glaciated valleys are created when a glacier slides down a slope while moving across it, scouring the valley as it goes. When the ice melts or retreats, the valley is left behind and is frequently covered in small rocks known as glacial till or glacial erratic that were carried by the glacier.
Hence, this U-shaped valley was produced by the action of a glacier.
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A huge, jagged rock sits atop a windy cliffside. Over a period of many years, how will the rock MOST LIKELY change?
A) It will become larger and smoother.
B) It will become smaller and smoother.
C) It will become bigger and less smooth.
D) It will become smaller and less smooth.
It will become smaller and less smooth. Only because with the wind blowing sand or other other small items it will cause the rock to be pelted which will chip the surface, breaking and making the rock small and rougher
Answer:
Option (D)
Explanation:
Wind erosion will take place extensively as the cliff-side is exposed on the outcrop. Due to the wind erosion, the large, jagged rock will undergo the process of weathering where the softer parts of the rock will be eroded much rapidly in comparison to the harder parts, as a result of which the overall size of the rock will decrease and the surface will be uneven and somewhat rough. This will take place over a due course of time. The main agent that is responsible for erosion is the wind.
Thus, the given rock will become smaller and less smooth after a definite period of time.
Thus, the correct answer is option (D).
Which statement best describes the difference between a physical change and a chemical change? Question 3 options: A physical change is a change from one state of matter to another; a chemical change results in a new substance formed. A physical change produces a new element, and a chemical change results in a bond breaking between atoms. A chemical change results in a new element being formed, and a physical change results in a new compound being formed. A chemical change does not result in a new substance being formed, whereas a physical change does.
A chemical change results in a new element being formed, and a physical change results in a new compound being formed.
What effect will the north pole of one magnet have on the north pole of another magnet.
A. REPULSIVE
B. ATTRACTIVE
C. COMBATIVE
D. NO EFFECT
2.Why are paperclips attracted to magnets?
A.The contain silver
B.They contain aluminum
C.They contain tin
D.They contain iron
3.What is the simplest requirement for an electromagnet?
A.A coil of electrified wire wrapped
B.A bar magnet and a power source
C.A coil of electrified wire
D.A length of electrified wire
please help for 20pts
When you graph displacement vs. time, velocity is represented by .............................
Describe a theme-park ride that has constant speed but changing velocity.
Thank you!
A 2,000 g quantity of C-14 is left to undergo radioactive decay. The half-life of C-14 is approximately 5,700 years. After going trough x half-lives, the sample becomes 125 grams. What is x?
Answer:
cc
Explanation:
c
The specific heat capacity of aluminum is 0.22 cal/g°C. How much energy needs to flow into 20.0 grams of aluminum to change its temperature by 15°C?
0.017 cal
0.29 cal
66 cal
1363 cal
Answer: 66 cal
Explanation:
The Heat energy required to flow into a unit mass object to raise its temperature by 1 degree is known as specific heat capacity.
It is given by:
Q = m c ΔT
where, m is the mass, c is the specific heat capacity and ΔT is the change in temperature.
Given:
specific heat capacity of aluminum, c = 0.22 cal/g°C
mass of aluminium, m = 20.0 g
Change in temperature, ΔT = 15°C
⇒Q = 20.0 g × 0.22 cal/g°C × 15°C = 66 cal
The amount of energy that needs to flow into 20.0 grams of aluminum to change its temperature by 15°C is 66 cal.
Water is formed when two hydrogen atoms bond to an oxygen atom. The hydrogen and the oxygen in this example are different A) complexes. B) compounds. C) elements. AND) mixtures.
Water is formed when two hydrogen atoms bond to an oxygen atom. The hydrogen and the oxygen in this example are different elements. therefore the correct answer is option C.
What is a Chemical compound?A chemical compound is a combination of two or more either similar or dissimilar chemical elements.
For instance, the chemical molecule CO2 is composed of one carbon atom and two oxygen atoms.
As given in the problem statement water is formed when two hydrogen atoms bond to an oxygen atom.
Hydrogen and oxygen are examples of different kinds of elements.
Thus, when two hydrogen atoms join with an oxygen atom, water is created. In this illustration, hydrogen and oxygen are separate elements. the correct answer is option C.
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1. Describe the differences in the ways the sand castle is changed by an ocean wave and by Dylan stomping on it
A sand castle that was changed by the ocean waves would be slowly taken away from by the waves and would just become a smooth mound of sand. If Dylan stomped on it then it would still have all of the same sand as before but in a different shape. It would also become a mound of sand but it would have all the same sand as before.
(I don't know if I was supposed to talk about fancy physics stuff so I just gave a basic explanation. I don't know if my answer is really right or not... hope it helped though :))
How kinetic energy and speed are related?
A heavy 2.0Kg ball is moving at 10m/s when it is caught. A light 1.5Kilogram ball is travelling at 20m/s when it caught. Which ball required the greater impulse? a) The 2.0kg ball because it is more massive. b) The 2.0kg ball because it had more momentum c) The 1.5kg ball because it was travelling faster d) The 1.5 kg ball because it is more momentum e) The question can’t be answered without more information.
To check impulse you will need more information you will require more data as it was diverse with time. In this question, there are two balls with various mass and speed, along these lines they have diverse force. I will expect you are getting some information about the momentum.
The momentum of ball 1 should be:
momentum 1 = mass₁ x velocity₁
momentum 1 = 2kg x 10m/s = 20kg m/s
The momentum of ball 2 should be:
momentum 2= mass₂ x velocity₂
momentum 2= 1.5kg x 20 m/s = 30kg m/s
The answer would be "1.5kg ball because it was travelling faster".
Answer:
the answer is d
Explanation:
Which statement best describes the role of gravity?
It decreases the mass of objects.
It increases the density of objects.
It repels objects in proportion to their temperature.
It draws objects together in proportion to their mass.
On a hot summer day several swimmers decide to jump into a river. They step off the bridge and strike the water at 1.5s later. Ignore air resistance. What is the height of the bridge?
I did it but I don’t know if it’s right
make a list of possible consequenes of solar flares to the following members of your community
How do glaciers change the Earth's surface?
Answer:
Waves and glaciers weather and erode the Earth’s surface.
Explanation:
Science
Glaciers are important agents of change on the Earth's surface. They can shape the landscape, provide water resources, and impact global climate patterns.
What is a Glacier?Glaciers are large masses of ice that form over many years from compacted snow in areas where snowfall exceeds snowmelt. As glaciers move, they can have significant impacts on the Earth's surface, including:
(1)Erosion: Glaciers can erode and shape the land as they move. As they flow downhill, they can scrape and grind rocks and soil, carving out valleys and creating features such as cirques, aretes, and u-shaped valleys.
(2)Deposition: As glaciers melt, they deposit sediment they have carried, creating features such as moraines, drumlins, and eskers. These deposits can significantly alter the landscape and create unique features.
(3)Water supply: Glaciers can serve as a source of freshwater for ecosystems and human populations. As they melt, they can provide water for rivers and streams, which can support a variety of plants and animals.
(4)Sea level: Melting glaciers can contribute to rising sea levels, which can have significant impacts on coastal communities and ecosystems.
(5)Climate: Glaciers play a role in regulating the Earth's climate by reflecting sunlight back into space. As glaciers melt, they can reduce this reflective effect, leading to warming temperatures and further melting of glaciers.
Hence, If glaciers melt they have significant impacts like Erosion, Deposition, Water supply, Sea level, and Climate on our earth's surface.
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How would you measure the volume of a plastic pen? I’m thinking using the water displacement method but I’m not sure. In class we can only use length x widths height and water displacement.
Answer:
The ways you could find the volume of a plastic pen could be:
Archimedes principle Divide the pen into familiar geometric shapes.Explanation:
The two suggestions that I give you can apply to find the volume of a plastic pen, with the first method you only have to immerse the pen inside a volumetric container with a certain amount of water, then you look at the amount of water that increased in the container and that increase with respect to the initial value is the volume of the cylinder.
In the second way that I give you, you must divide the pencil into known figures to which you will calculate the volume separately, if it is a common pencil its initial part (where the tip is) you can resemble a cone and the body to a cylinder , so you would use the formulas:
Volume of a cone = 1/3 * PI * r ^ 2 * h Volume of a cylinder = PI * r ^ 2 * hWhere:
PI = 3.1416 approximately.
r = Radius.
h = Height.
With which you would have to measure with a ruler the values requested by the formulas and replace to calculate them.
how many electrons does an element typically try to get on its outer level
I have a table that I recorded of my data and my partner's data
My table My partner's table
position (m) Time (s) position (m) time (s)
0m 0 0m 0
2m 2.30 2m 2.74
4m 4.28 4m 2.39
6m 5.00 6m 2.20
8m 5.89 8m 1.80
10m 6.59 10m 3.21
a. Explain how you can use your graph to figure out who had the fast average speed.
b. Explain how you can use your data table to figure out who had the faster average speed
c. Look at each person's line on the graph. How can you use the graph to tell whether you moved at a constant speed? Did you move at a constant speed? Did your partner?
d. Calculate each person's average speed in meters per second and in centimeters per second.
Name the blood vessels that carry blood from the upper and lower parts of your body
Answer:
superior vena cava and the inferior vena cava
Explanation:
The superior vena cava receives blood from the upper part of the body The inferior vena cava receives blood from the lower part of the body.a rock sample will most likely contain ?
What physical characteristic is the same for a particular substance regardless of the sample size .
Answer: The answer is melting point I think.
Explanation: I did the Performance Matters. I added a picture of the question just in case anyone else wants to answer.
Approximately how old is the earth?
A) 4.5 trillion years
B) 4.5 million years
C) 4.5 billion years
D) 4.5 thousand years
True or False? each SI unit is 10 times smaller than the next smallest unit.
It is a true statement that each SI unit is 10 times smaller than the next smallest unit.
What is a unit of measurement?
A unit of measurement is a specified magnitude of a quantity that is established and used as a standard for measuring other quantities of the same kind. It is determined by convention or regulation.
The measuring unit can be expressed as a multiple of any extra quantity of that kind.
1 kilometer = 10 hectometer
1 hectometer = 10 decameter
1 meter = 10 desimeter
1 decimeter = 10 centimeter
1 centimeter = 10 millimeter
Hence, we can say it is a true statement that each SI unit is 10 times smaller than the next smallest unit.
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Jack and Jill have a pail of water. Which action will cause the molecules of water to move faster?
Why would a ship find sea beam technology beneficial
Considering that, the ocean can forcefully drive the boat's built-in part off. Many people would support it to give the vote momentum. To be utilized for boats or boards, that is the main reason new dead anchors are located close to the ocean in the first place.
What is a sea beam?Our understanding of the sea floor and just how sea floor surveys are carried out, especially with reference to open water navigation, have been significantly altered of the introduction of deep ocean, multibeam mapping devices as Sea Beam to the oceanographic community.
With the real ability to cover the whole in every with deep water resolution of 100-200 m, these systems offer a more than one hundred-fold increase in survey resolution. As a result, they have not only put a lot of stress on shipboard navigation, but they have also directly made it possible to navigate in previously surveyed areas using very accurate terrain-following techniques.
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2. Describe what would happen to both air temperature and soil temperature if cold weather were to pass through the area.
The air temperature would drop quickly compared to the soil because the difference between solid and gas. But the ground will stay cooler longer than the air because it contains it better than the air.
Amit flies due east from san Francisco to Washington D. C, a displacement of 5600km. He then fliesfrom Washington D. C to Boston, a displacement of 900 km at an angle of 55.0°east of north. What is amit's total displacement?
Amit's total displacement can be calculated by using vector addition and the Pythagorean theorem to account for the different directions of his two journeys.
Explanation:To calculate Amit's total displacement, we need to treat his journey in two segments. The first segment is his displacement from San Francisco to Washington D.C., a flat displacement of 5600km due east. The second segment is his displacement from Washington D.C. to Boston, a displacement of 900km at an angle of 55.0° east of north.
Because displacement is a vector, meaning it has both magnitude (distance) and direction, we can't simply add the two displacements together. Instead, we use vector addition to calculate the total displacement. First, we separate the 900km displacement into its eastward and northward components. The eastward component is 900km * cos(55.0°), and the northward component is 900km * sin(55.0°).
To get the total eastward displacement, we add the eastward displacement from San Francisco to Washington D.C. (5600km) and the eastward component of the displacement from Washington D.C. to Boston. The total northward displacement is just the northward component of the displacement from Washington D.C. to Boston, since Amit did not have any northward displacement in the first segment of his trip from San Francisco to Washington D.C.
The total displacement from San Francisco to Boston is then found by using the Pythagorean theorem on the total eastward and northward displacements. In other words, Amit's total displacement is the square root of (total eastward displacement)^2 + (total northward displacement)^2.
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PLEASE HELP ASAP
How is science different from other activities involving thought. Give 2-3 sentences to explain why.
Answer:
Science is different from other activities that involve thought because you can create experiments to test any ideas that you have. Another difference is that the government will pay you for being a scientist unlike being a random person with an idea.
Hope this helps/gives you some ideas :)
Explanation:
WILL GIVE BRAINLIEST!!!
Check ALL of the options below which show evidence to support the theory of plate tectonics.
A) Composition of rocks found on the moon
B) Sea-floor spreading
C) Horses live in Asia and North America.
D) Analysis of rocks from mountains on separate continents show they are identical.
E) Fossils of the same animals found separated by oceans.
F) Evidence of glaciers in tropical areas.
Evidence supporting the theory of plate tectonics includes B) sea-floor spreading, D) identical rock formations on separate continents, E) matching fossils across oceans, and F) glacial evidence in tropical areas.
To support the theory of plate tectonics, one must look for evidence that indicates movement of the Earth's plates and their historical configurations. The correct options that show evidence supporting this theory are:
Sea-floor spreading: This is a process by which new oceanic crust is formed at mid-ocean ridges and contributes to the plate movements.Analysis of rocks from mountains on separate continents show they are identical: This suggests that these landmasses were once connected as part of a single continent before being separated by plate movement.Fossils of the same animals found separated by oceans: This indicates that these animals once lived on a single landmass that has since been divided by tectonic activity.Evidence of glaciers in tropical areas: The presence of glacial deposits in regions that are now tropical suggests that continents have shifted from polar to equatorial areas due to plate tectonics.
A football player kicks a ball with a mass of 0.42 kg. The average acceleration of the football was 14.8 m/s square. How much force did the kicker supply to the football?