Answers
Answer: D
Explanation:
The wind will begin to blow the sediments of the arch away, causing the arched structure to become thinner over time. Therefore, the best answer is option D.
Related Questions
water can be thought of as a mass of moving particles what evidence supports this idea.
Answers
When temperature of water rises, it stats moving from higher to lower temperature area - this evidence supports that water can be thought of as a mass of moving particles .
What are the properties of liquid?The volume retention and conformity to the shape of a liquid's container are two of its most noticeable physical characteristics. When a liquid substance is poured into a container, it conforms to the shape of the container and will stay inside the container so long as the liquid state persists.
Water is a liquid. Hence, water can be thought of as a mass of moving particles.
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How were you able to increase the amount of potential the ball had?
Answers
Answer:
The potential energy can be increased by increasing the mass of the object, by varying the distance between the two objects, decreasing the kinetic energy of the molecules, by freezing, by compressing or stretching, and so on.
Explanation:
Hope this helped !
A student is pushing on a heavy door, trying to slide it open. Their friend stands behind them and helps push. How have the forces changed
Answers
There will be an increase in the net force.It appears that an object is moving faster, slower, or in a different direction.
What actually constitutes force?There are several instances of forces in daily life, including:heft and powerthe force a bat applies to a ball.the pressure that a hair brush applies to hair when brushing it.the pressure your foot applies to the pedal when you're riding a bike.
What occurs when a force shifts?An object can change its size or shape, begin moving, stop moving, accelerate, or decelerate as a result of a pressure applied on it.
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1. Two objects with the same mass move toward each other with the same speed and experience an elastic collision. Compare the final velocities of each object to their initial velocities
Answers
Answer:
M1 U1 + M2 U2 = ( M1 + M2 ) V
Explanation:
they rebounce, therefore it's elastic.
What is the shape of a baseball field called?
Answers
Each base is at the intersection of a square-shaped infield in baseball. 8100 square feet, 900 square yards, or 90 × 90 square feet make up the space.
How would you describe a baseball field?Nine players occupy the diamond-shaped field that is used for baseball. There are two main areas of the field: the infield and the outfield. Four infielders and two core players cover the infield. Three outfielders cover the outfield.
In a letter dated May 26, James Cannon expressed shock that the "diamond" form is referred to as a rhombus. A baseball diamond, he pointed out, is essentially a square.
The elevated dirt area in the middle of the infield known as the hill—also known as the pitcher's mound—is where the pitcher throws. The pitcher's rubber is located directly behind the middle of the mound and is what they use to prepare and throw the ball.
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Each of five satellites makes a circular orbit about an object that is much more massive than any of the satellites. The mass and orbital radius of each satellite are given below. Which satellite has the greatest speed? Mass Radius (A) ½m R (B) m ½R (C) m R (D) m
Answers
Correct option is B, satellite that has the greatest speed has Mass Radius m ½R.
Because the satellite orbits the earth, the gravitational pull of the planet on the satellite supplies the necessary centrifugal force. In a circular orbit, the gravitational force is constant, hence the satellite's velocity is also constant.
Kepler's third law informs us that
V² = GM/R
Therefore, v = (GM/R)
Where;
V is the speed
G stands for gravity constant.
Mass is M.
R is radius
Let's begin by examining the first choice, which is Option B.
Here, mass equals m and radius equals (1/2)R.
Consequently, v = (Gm/(R/2)) = (2Gm/R)
After carefully examining each choice, it is evident that option B will have the highest velocity because its numerator is the largest, which will result in a higher velocity.
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Temperature changes can affect substances in different ways. Which of these actions will form a new substance with different properties?
Answers
Phase states and abrupt changes in temperature. If the temperature it is exposed to changes drastically, a substance may go through a phase shift, changing from a solid to a gas or from a gas to a solid.
A solid can sublimate, or phase transition from a solid to a gas without ever existing as a liquid, if the temperature around it rises very quickly.
When bonds between molecules or atoms are created, disrupted, or both, chemical changes result. This implies that a substance with a particular set of properties such as melting point, colour, flavor, etc. becomes a substance with a different set of characteristics.
Physical alterations can often be reversed more easily than chemical changes. The condition in which a substance is in can be substantially influenced by its temperature. Matter might be in a solid, liquid, or gaseous form. Every material in the universe has a specific temperature threshold that, when crossed, causes a phase transition that alters the state of the substance. When matter absorbs or loses energy, its states change.
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writing connection science Alfred Wegener never convinced the scientific community that continents move on earths surface. Imagine you could send a message to the past. Explain to Wegener in a letter the evidence that he was missing and the theory of plate tectonics.
Answers
The letter explaining to Wegener the evidence that he was missing and the theory of plate tectonics is written below:
Letter on the theory of plate tectonicsDear Alfred Wegener,
I am writing to you from the future to tell you that your theory of continental drift has been proven to be true. However, I understand that during your lifetime, you were not able to convince the scientific community of the validity of your ideas. I want to share with you some of the evidence that was discovered after your time that helped to solidify the theory of plate tectonics.
Firstly, the discovery of the mid-Atlantic Ridge in the 1920s provided evidence for the existence of a divergent boundary. This underwater mountain range, which runs down the center of the Atlantic Ocean, is evidence of the separation of the North American and Eurasian plates. Another key piece of evidence is the matching of rock formations and fossil records on opposite sides of the ocean.
Furthermore, the study of earthquakes and volcanoes also helped to support the theory of plate tectonics. The locations of earthquakes and volcanoes corresponded with plate boundaries, and the movement of these plates could explain their occurrence.
In conclusion, I hope this letter has helped to provide you with some of the evidence that was missing during your lifetime and helped to solidify the theory of plate tectonics. Your contributions to the field of geology were crucial in helping scientists to understand the movement of the Earth's crust.
Yours Sincerely,
John Philips
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3. Calculate the mass in the following scenarios (g-9.81 N/kg):
a) 1000 J and 10 m
b) 1250 J and 1 m
d) 1550 J and 0.02 m
e) 8900 J and 215 m
g) 98 J and 59 kg
h) 750 J and 0.75 m
c) 1.25 kJ and 90 m
f) 90 J and 1250 m
i) 5 kJ and 980 m
Answers
Hello there!
Formula: A = F * S = mg * S
So m = A/gS
a) m = 1000 J/(9.81 N/kg * 10 m) ≈ 10.194 kg
b) m = 1250 J/(9.81 N/kg * 1 m) ≈ 127.41 kg
d) m = 1000 J/(9.81 N/kg * 10 m) ≈ 7900.1 kg
e) m = 8900 J/(9.81 N/kg * 215 m) ≈ 4.22 kg
g) m = 98 J/(9.81 N/kg * 59m) ≈ 0.17 kg
h) m = 750 J/(9.81 N/kg * 0.75 m) ≈ 101.94 kg
c) m = 1.25 kJ/(9.81 N/kg * 90 m) = 1250 J/(9.81 N/kg * 90 m) ≈ 1.42 kg
f) m = 90 J/(9.81 N/kg * 1250 m) ≈ 0.007339 kg = 7.339 g
i) m = 5 kJ/(9.81 N/kg * 980 m) = 5000 J/(9.81 N/kg * 980 m) ≈ 0.52 kg
Imagine some cosmic catastrophe jolts Earth so that its axis is perpendicular to the orbital plane between Earth and the sun. The most obvious effect of this change would be ____.
Answers
Any cosmic catastrophe jolts the Earth so its axis is perpendicular to the orbital plane between Earth and the sun. Then, the significant effect will be the elimination of the variation of seasons.
A cosmic Catastrophe is a thought experiment in which the sun disappears in an instant. A Planetary Response gradually creates a supranational agency to protect life on Earth from natural threats from terrestrial (pandemics, mega volcanoes, major earthquakes, etc.) and celestial bodies (comets, asteroids, meteor storms, etc.). I am asking you to Variation in a time series within a year that repeats more or less regularly. Seasonal variations can occur due to temperature, precipitation, holidays, seasonal cycles, or holidays. Seasonality is defined as the cyclical changes in food and agricultural labor availability caused by climate change in rural areas of the least developed countries (LDCs).
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What is the importance of audio or sound in media forms such as film and television?
Answers
Sound is important because it engages audiences: it helps deliver information, it increases the production value, it evokes emotional responses.
Why is sound so important in film?In films, sound can have a significant impact. It can help communicate the tale and advance the plot by enveloping the spectator in a strange environment. Sound can also elicit feelings and establish the mood of a movie. The audio of a movie is just as vital as the on-screen images. Audio aids in memory retrieval, improves brain function, and stimulates the brain (Molyneux, 2007). Students can improve their listening abilities by using audio media (especially for language learning). Distance learning is supported by audio media. Audio content facilitates memorising (music, mnemonics, etc). The purpose of sound in film and television is to further the plot of a narrative, documentary, or commercial movie or television show.To learn more about sound refer to:
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What did Galileo discover when he dropped two cannon balls into f different weights from the leaning tower of pisa
Answers
Answer: The time it took for them to fall ere the same.
Explanation:
The only difference was because of resistance, weight doesn't affect the speed of gravity, the speed of gravity stays the same (9.801 meters per second)
It took the bike messenger 36 minutes to ride from the school to the blue house. If they are 2160 meters apart, what was the messenger's velocity
Answers
The bike messenger's velocity will be 1 m/s.
Given as per the question is,
Distance between school and the blue house is 2160 meters
Time taken by the bike messenger is 36 minutes
Velocity is to be calculated.
Converting minutes into seconds,
36 minutes = 36 X 60 = 2160 seconds.
Velocity of an object can be calculated by the formula as,
Velocity = Distance/ Time
Substituting the values as per the formula above,
Velocity = 2160/2160 = 1 m/s
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On a cold winter night, a story comes on the news at stations across the northern part of Florida recommending that residents turn on their outside faucets to allow a slow drip of water. Why would that be recommended?
a-It keeps the ground from drying out.
b-It protects the water from shrinking in the pipes.
c-It stops the water from getting too salty.
d-It prevents the water from bursting the pipes.
Answers
On a cold winter night, a story comes on the news at stations across the northern part of Florida recommending that residents turn on their outside faucets to allow a slow drip of water. It would that be recommended because it prevents the water from bursting the pipes.
Option D is correct.
How do we prevent freezing pipes during freezing temperatures?During freezing temperatures, one of the things that you can do in order to prevent water from freezing and bursting the pipes is to run your faucet because running water does not freeze as easily as standing water, so letting it drip overnight will help.
The body faces the effects when subjected to freezing temperatures as it the body begins to lose heat faster than it can be produced. Prolonged exposure to cold will eventually use up your body's stored energy. The result is hypothermia, or abnormally low body temperature.
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1. Ivan pulls a sled loaded with logs to his cabin in the woods. He pullsutbiq si
with a force of 800 N at an angle of 20° above the ground.
a. Draw a free-body diagram of the 4 major forces acting on the
sled. Label each force appropriately.
Answers
The four major forces acting on the sled and the free-body diagram of the 4 major forces acting on the sled is attached below:
The force of gravity pulling down on the sled and logs (labeled as "Fgrav").The force of friction acting against the sled's movement (labeled as "Ffrict").The force of Ivan pulling the sled (labeled as "Fpull").The force of normal acting on the sled (labeled as "Fnorm").What is a free body diagram?In physics and engineering, a free body diagram (FBD; also called a force diagram) is a graphical representation used to visualize the forces, moments, and resulting reactions applied to a body in a given state. expression. It represents a body or connected bodies that includes all applied forces, moments, and reactions acting on the body. A body can consist of several internal elements (such as a truss), or it can be a compact body (such as a beam). A series of free-body and other diagrams may be required to solve complex problems. A free body diagram consists of:
A simplified version of the body (often a period or box).Forces are represented as straight arrows pointing in the direction they act on an object.A moment is represented as a curve with a single arrow or as a vector with two arrows pointing in the direction acting on the body.One or more reference coordinate systems.Responses to applied forces are usually indicated by dashes through the stem of the vector.To know more about free body diagram, visit:
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What causes diffusion in cells?
Answers
The causes diffusion in cells are, temperature, area of interaction, the size of the concentration gradient.
1) Temperature, The rate of diffusion increases as temperature rises.
2) Area of Interaction: The rate of diffusion increases as the surface area of interacting molecules increases.
3) The Size of the Concentration Gradient: The rate of diffusion is higher the greater the concentration gradient between the regions.
Higher the rate of diffusion, the more concentration between the locations. The movement is forced because of the increased pressure that the higher concentration creates. The movement of molecules from a location of higher concentration to a region of lower concentration can be used to define diffusion. The continuous motion (or kinetic energy) of atoms in matter is the primary cause of diffusion.
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A rectangular tank 6 m long, 2 m deep and 2. 4 m wide contains 1 m of water. The tank is accelerated in the x-direction (along the direction of the 6 m length) with an acceleration 2. 45 m/s^22. 45m/s 2. What is the angle (in degrees) of the water surface with the horizontal
Answers
The angle (in degrees) of the water surface with the horizontal is 14.3 degrees
The angle of the water surface with the horizontal can be determined using the concept of the accelerations of gravity and centripetal force. The acceleration of gravity acts in the downward direction, and the centripetal force acts in the opposite direction of the acceleration. In this case, the horizontal acceleration of the tank is 2.45 m/s^2, which acts in the opposite direction of the gravitational acceleration.
The angle of the water surface with the horizontal can be found by taking the tangent of the ratio of the centripetal acceleration to the gravitational acceleration.
tan(theta) = (centripetal acceleration) / (gravitational acceleration)
tan(theta) = (2.45 m/s^2) / (9.8 m/s^2) = 0.25
Theta = 14.3 degrees
So the angle of the water surface with the horizontal is 14.3 degrees.
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What is a way Accenture plans to achieve its sustainability goals by integrating sustainability metrics into all our client engagements?
Answers
One way that Accenture is seeking to achieve its sustainability goals is by integrating sustainability metrics into all of its client engagements.
What is sustainability?
Sustainability is the practice of using resources in a manner that meets the economic, social, and environmental needs of the present without compromising the ability of future generations to meet their own needs. It is a systemic approach to creating and maintaining conditions that allow people to thrive in the present without compromising the planet’s ability to support future generations.
This includes leveraging Accenture’s proprietary Sustainability Maturity Model, which provides a structured approach to measure and track sustainability performance. It also includes embedding sustainability into the design of client projects, developing strategies to enable clients to reach their sustainability goals, and exploring the potential of emerging technologies to accelerate progress. Additionally, Accenture is committed to providing its clients with data-driven insights and best practices that enable them to meet their sustainability objectives.
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If hydrogen gives off 10 units of energy, but takes 15 units of energy to produce, what is its net energy ratio
Answers
The net energy ratio of hydrogen is 0.67.
What is net energy ratio?The net energy ratio, also known as energy return on investment (EROI), is a measure of the efficiency of a fuel source or energy system. It represents the ratio of the energy output to the energy input, or the amount of energy that is produced compared to the amount of energy that is required to produce it.
A net energy ratio of 1 means that the energy output is equal to the energy input, and that no net energy is produced.
In the case of hydrogen, it gives off 10 units of energy but takes 15 units of energy to produce, so the net energy ratio would be:
Energy output / Energy input = 10 units / 15 units = 0.67
Hence, the net energy ratio of hydrogen is 0.67. This means that for every 1 unit of energy put into producing hydrogen, only 0.67 units of energy are obtained.
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Two negative charges of -3x10-6C exert a repulsive force of 2Non each other. By what distance are they separated?
Answers
The distance between two negative charges experiencing a force of 2 N is: 4.44 x 10^-3 m
According to Coulomb's Law, the magnitude of the electric force between two negative charges is given by:
F = k * q1 * q2 / r^2
where k is the Coulomb constant (8.99 x 10^9 N m^2/C^2), q1 and q2 are the charges, and r is the distance between them.
Plugging in the given values, we get:
2N = 8.99 x 10^9 N m^2/C^2 * (-3 x 10^-6 C)^2 / r^2
Solving for r, we get:
r = sqrt(8.99 x 10^9 N m^2/C^2 * (-3 x 10^-6 C)^2 / 2N)
r = 4.44 x 10^-3 m
Coulomb's Law states that the magnitude of the electric force between two charges is proportional to the product of the charges and inversely proportional to the square of the distance between them. The constant of proportionality is known as the Coulomb constant (k). Therefore, the equation for the magnitude of the electric force is given by F = k * q1 * q2 / r^2, where k is the Coulomb constant, q1 and q2 are the charges, and r is the distance between them.
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A magnetic field of magnitude 0.37 T0.37 T is directed vertically upward.
(a) Find the magnetic flux through a flat surface of area 19 cm219 cm2 if the surface is vertical.
(b) Find the magnetic flux through a flat surface of area 19 cm219 cm2 if the surface is horizontal.
(c) Find the magnetic flux through a flat surface of area 19 cm219 cm2 if the surface is at angle of 64∘64∘ with the horizontal.
Answers
The equation represents the force on a wire in a magnetic field (B) that is length L and carrying current I. where θ is the angle created by the magnetic field and the wire, and F=ILBsin.
What is magnetic flux, exactly?The number of total of magnetic field line that travel through a specific closed surface is known as the magnetic flux. It provides a method to calculate the overall magnetic field which passes across a particular surface area.
What is the magnetic flux unit?Magnetic flux is measured in SI units by the Weber (Wb). Tesla is equal to one Weber per sq meter of flux density (T). Numerous additional units are routinely used to express the Weber unit.
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As a train accelerates away from a station, it reaches a speed of 4.8 m/s in 5.2 s. If the train's acceleration remains constant, what is its speed after an additional 7.0
Answers
After another 7.0, its speed is 6.52 m/s. The time it takes a train to accelerate out of a station to 4.8 m/s is 5.2 seconds.
Which speed is it?the rate at which an object's location changes in any direction. Speed is defined as the relationship between a distance and the time it takes to travel that distance. Speed is a scalar quantity because it has no magnitude and only a direction.
The rate at which the velocity of a moving object varies is known as acceleration .To calculate the object's speed at a particular time, we must first calculate the acceleration by dividing the speed by the given time. Here's what we do:
acceleration = 4.8 m/s / 5.2 s = 0.92 m/s^2
To determine the velocity after 7.1 s, we multiply 7.1 s to the acceleration.
speed or velocity = 0.96 x 7.0 = 6.44 m/s
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Ball A has a mass of 3 kg and moves at a velocity of 2 m/s. Ball B has a mass of 1 kg and rolls towards Ball A with a velocity of -4 m/s. After the collision, Ball A has a velocity of -1.5 m/s. What is the velocity of ball B after the collision?
Please show your work.
Answers
The velocity of ball B after the collision is 6.5 m/s.
What is law of conservation of momentum?According to the law of conservation of momentum, The overall momentum of two or more bodies acting on one another in an isolated system stays constant unless an external force is introduced.
Before collision ,
ball A of mass of 3 kg has velocity = 2 m/s.
ball B of mass of 1 kg has velocity= -4 m/s.
After the collision,
Ball A has a velocity = -1.5 m/s.
Let Ball B has a velocity = v m/s.
Applying law of conservation of momentum,
Total initial momentum = total final momentum
3×2 +1×-4 = 3×-1.5 + 1×v
⇒ v = 3×2 +1×-4 - 3×-1.5
⇒ v = 6.5 m/s.
hence, the velocity of ball B after the collision is 6.5 m/s.
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Within galaxies there are billions of stars. Analyze the Hertzsprung Russell Diagram below and then choose the statements which are true, based on the diagram.
Answers
The Hertzsprung-Russell (H-R) Diagram is a graph that plots the luminosity (or absolute brightness) of stars against their surface temperature (or spectral type). It is used to classify stars based on their properties and understand their evolution.
The following statements are true based on the H-R diagram:
Most stars are located on the main sequence, which runs from the upper left to the lower right of the diagram. This represents stars that are burning hydrogen in their cores and are in a state of equilibrium.Stars located in the upper right corner of the diagram are brighter and hotter than those on the main sequence and are known as "giants" or "supergiants". They have exhausted the hydrogen in their cores and are in a later stage of their evolution.Stars located in the lower left corner of the diagram are cooler and less bright than those on the main sequence and are known as "dwarfs". These stars are in the early stages of their evolution and are still burning hydrogen in their cores.Stars located on the horizontal branch are burning helium in their cores, this represents stars that are in a different stage of their evolution.There is a clear relationship between a star's luminosity and its temperature, with hotter stars being brighter than cooler stars.The diagram shows that there is a wide range of luminosities and temperatures among stars, with some being much brighter and hotter than others.It's important to mention that the H-R diagram is a representation of the stars that are observed, and it's also based on the assumption that all stars are similar in their formation and evolution process.
The answer is general since no option is provided and similar question is nowhere to be found.
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Why momentum is denoted by P?
Answers
It's unknown where the term "p" for momentum first appeared. Since m had already been used for "mass," it has been proposed that the p may have been derived from the Latin petere or from "progress".
Why is momentum given the letter p?The letter "I" would cause a misunderstanding between inertia and moment of inertia. The French and Germans selected "p" for momentum because of this.
What does the momentum unit p mean?The formula p = mv can be used to compute momentum, where p stands for momentum, m for mass, and v for velocity. The usage of the letter p to represent momentum has various benefits. First off, it would be unclear to use m for momentum because m stand for mass.
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Answer is needed as soon as possible!
The reaction below is conducted in a closed system.
Is the following reaction an endothermic or exothermic reaction?
Why is it that type of reaction?
N2+O2 -> 2NO+181kJ
Answers
This is an exothermic reaction because it releases energy in the form of heat (181kJ). When an exothermic reaction occurs, energy is released into the environment.
What is exothermic reaction?
An exothermic reaction is a chemical reaction that releases energy in the form of heat. This heat is released into the environment, making the surrounding area warmer.
Exothermic reactions can occur naturally and can also be artificially induced. Examples of exothermic reactions include burning fuels, neutralization reactions, and even certain biological processes.
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Body of an earthworm is divided into rings/ metamers. It moves with the help of two muscles: longitudinal and circular muscles. Which of the following activity is done by earthworm during its movement?
(OPTIONs)
→ Swallow the soil it moves
→ Grip the soil firmly at one end
→ Make the soil moist and slippery
→ Break the soil into smaller particles
Answers
Swallow the soil it moves and Break the soil into smaller particles.
What is movement in earthworm?They don't have bones or other fixed features that might restrict their movement. The body of an earthworm is segmented. Earthworms use the setae, or tiny bristles, that are present on each segment, to assist them hold the dirt as they travel.
An earthworm uses two distinct sets of muscles to move. Longitudinal muscles run the length of the body, while circular muscles loop around each segment. The earthworm extends as a result of the circular muscles contracting, growing longer and thinner.
The earthworm embeds the front of its body in the dirt using its setae. The earthworm now contracts its longitudinal muscles, either making it shorter and wider.
Therefore, Swallow the soil it moves and Break the soil into smaller particles.
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In which situation is the maximum possible work done? A. when the angle between the force and displacement is 0° B. when the angle between the force and displacement is 180° C. when the angle between the force and displacement is 45° D. when the angle between the force and displacement is 90°
Answers
As a result, the force's effort is at its greatest when there is no angle between its direction and displacement, hence option A is correct.
What is work done?According to physics, a force is an effect that has the power to change an object's motion.
A force can cause a massed item to accelerate or modify its velocity. A push or a pull is a straightforward method to explain forces. Since a force has both magnitude and direction, it is a vector quantity.
Therefore, work is therefore at its greatest when the angle between force and displacement is 0 °.
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Answer: A. when the angle between the force and displacement is 0 degrees.
Explanation:
Edmentum
how do waves change as they approach the shore the height increases, friction along the top of the wave increases, the wavelength increases, the distance between crests inc
Answers
As the waves approach the shore, they slow down, the height of the waves increases and the wavelength decreases.
The ocean floor provides resistance to the waves' troughs as they go closer to the coast. The wave is slowed down by the friction it creates with the ocean floor. The wavelength of the waves is shortened by this friction. The crests rise higher and the troughs deepen as the wavelength shortens.
Friction at the wave's point of contact with the bottom slows it down. The wavelength is reduced as one wave slows down and is caught up to by another. The wave height increases even when the wavelength shrinks because the wave's energy remains constant.
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Energy can neither be created nor destroyed. Why?
Answers
Answer:
The law of conservation of energy states that energy can neither be created nor destroyed - only converted from one form of energy to another. This means that a system always has the same amount of energy, unless it's added from the outside