Will give brainliest! describe density currents and the major factors that cause them in 6 sentences
Answers
Answer:
1. MOON has the greatest influence over the tides
2. Ocean currents can be caused by wind, density differences in water masses caused by temperature and salinity variations, gravity, and events such as earthquakes or storms.
Explanation:
Related Questions
Which best describes a difference between energy transformations in power plants and dams?
Only power plants use fossil fuels to transform energy.
Only dams use fission to generate thermal energy.
Only power plants use water to turn turbines.
Only dams use mechanical energy to produce electricity.
Answers
Answer:
a
Explanation:
Only power plants use fossil fuels to transform energy.
What is meant by energy transformation ?The process of changing one form of energy into another form or the transfer of energy from one location to another is referred to as energy transformation.
Here,
A power plant is a facility that transforms heat energy into electricity. Typically, coal is used by thermal power plants to generate heat.
With the aid of one or more generators that transform various energy sources into electric power, a power plant is an industrial facility used to create electricity.
The water that is kept behind a dam can store electricity in a hydroelectric plant. Potential energy is changed into kinetic energy when water flows from higher altitudes.
Kinetic energy is changed into mechanical energy as the turbine rotates due to the water flow.
Hence,
Only power plants use fossil fuels to transform energy.
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What is the function of the cornea?
Its opening allows light rays to enter the eye.
Its muscles control its shape to help focus light.
Its inner surface sends nerve impulses to the brain.
Its curved surface focuses light.
Answers
Answer: B
Its muscles control its shape to help focus light.
Explanation:
The main function of a cornea is to help focusing the light ray into the eye lens.
Eyelids opening allows light rays to enter the eye.
While optic nerve inner surface sends nerve impulses to the brain.
Cornea can also function as a window lens that focuses light into the eye lens with its ability to refract and bend light into the eye lens.
Answer:
Its curved surface focuses light
Explanation: (Gradpoint)
A student is shown a picture of a large number of stars clumped together without a discernible shape. The student argues that these stars cannot be a galaxy because all galaxies have familiar shapes such as barred, elliptical, and spiral. Is the student correct?
A.
Yes. These stars cannot be a galaxy if they do not form a familiar shape.
B.
The stars cannot be a galaxy, but the student incorrectly lists "barred" as a possible shape. All galaxies are either elliptical, spiral, or spheroidal.
C.
Although all galaxies have familiar shapes, no single image can capture an entire galaxy. If the student could see the entire galaxy, it would have a familiar shape.
D.
No. The stars could be part of an irregular galaxy.
Answers
Answer:
D.
Explanation:
Irregular galaxies have no identifiable shape or structure to them. They are often chaotic in appearance, without a bulge or any trace of spiral arms.
A student shows a picture of many large stars clumped together without a discernible shape. So the stars could be a part of an irregular galaxy. Hence, option D is correct.
What is a Galaxy?All galaxies are collections of stars and other celestial bodies that are gravitationally bound. The cosmos contains more than 100 billion galaxies, each of which has stunning formations visible in photographs captured by telescopes of the far universe.
According to Jenna Samuel, a doctoral candidate in astrophysics at the University of California, Davis, a galaxy can be conceptualized as a collection of stars, gas, and dark matter that are all gravitationally bonded to one another. "What we imagine as a normal galaxy is largely the light section — the stars — that's embedded in a much larger dark matter halo, which spreads much further out," the researcher explained.
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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
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.
PLEASE HELP ON QUESTION ASAP !
Hi please help on question.If you get answer correct is be willing to give brainliest,a thanks, five stars and 10pts.
My question:
As an analogy of a circuit with resistance, think of an obstacle race . Which parts of a circuit do the obstacles represent? which part of the circuit do the people respresent?
Answers
In an analogy of a circuit with a resistance to an obstacle race, we can consider various elements of the race as representative of different components of the circuit.Obstacles, Track or Route, Participants, Start and Finish Line.
Obstacles: The obstacles in the race represent the resistors in a circuit. Just as resistors impede the flow of current in a circuit, obstacles in the race create hurdles that slow down the participants. The difficulty or magnitude of the obstacles can be equated to the resistance value of the resistors in a circuit.
Track or Route: The race track or route itself can be seen as the conductive path in a circuit. It provides a pathway for the participants to move and complete the race. Similarly, the conductive path in a circuit allows the flow of current from the power source to the load.
Participants: The people participating in the race represent the flow of electrons in a circuit. Just as the participants move through the obstacles in the race, electrons move through the resistors in a circuit. The rate at which participants complete the race can be compared to the current flowing through the circuit.
Start and Finish Line: The start and finish line of the race correspond to the terminals of a circuit. The start line represents the positive terminal, where the participants begin their journey, and the finish line represents the negative terminal, where the race concludes.
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Answer: As an analogy of a circuit with resistance, the obstacles in an obstacle race represent the resistance in a circuit. The parts of the circuit that the obstacles represent are the resistors. The people in the obstacle race represent the current in a circuit. The current is the flow of charged particles (such as electrons) in a circuit. In an obstacle race, the people are moving through the obstacles, just as the charged particles are moving through the resistors in a circuit. The obstacles slow down the people, just as the resistors slow down the flow of charged particles in a circuit.
Explanation:
Use the data in the table to explain how you could determine the volume of the block.
Answers
To find the volume of the block, subtract the initial water volume from the final water volume, convert the change in water volume to cubic centimeters, and consider it as the volume of the block.
To find the volume of the block using the measurements provided.
1. Calculate the change in water volume:
The initial water volume is given as 62.3 mL, and the final water volume is given as 89.5 mL. To determine the change in water volume, we subtract the initial volume from the final volume: 89.5 mL - 62.3 mL = 27.2 mL. This value represents the increase in water volume caused by placing the block in the graduated cylinder.
2. Convert the change in water volume to cubic centimeters:
Since 1 mL is equivalent to 1 cubic centimeter (cc), we can directly convert the change in water volume from milliliters to cubic centimeters. In this case, the change in water volume is 27.2 mL, which is also equal to 27.2 cc.
3. Determine the volume of the block:
When the block is placed in the graduated cylinder, it displaces some amount of water, resulting in an increase in water volume. By measuring this increase in volume, we can determine the volume of the block itself. In this case, the change in water volume of 27.2 cc represents the volume of the block.
By following these steps, we can find the volume of the block based on the provided measurements.
Therefore, By deducting the initial water volume from the final water volume and converting the difference in water volume to cubic centimeters, the block's volume can be calculated. the volume of the block is 27.2 cc.
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•Then I should :calculate the time of the block to fall
The force on an object is given by the equation F=ma. In this equation, F is the force, M is the mass, and a is the acceleration. What is the force on an object that has a mass of 3.4 kg and an acceleration of 8.1 m/s^2? A) 2.4N B) 27.5N C) 4.7N D) 11.5N
Answers
Answer:
B
Explanation:
JUST MULTIPLY THE MASS(3.4)×ACCELERATION(8.1)
AND YOU GET THE ANSWER IN NEWTONS
Justin and Oscar each hit a baseball with a bat. The baseballs have the same mass, but the ball Justin hits has a greater acceleration. What might be the reason for the greater acceleration of Justin's baseball?
Answers
The acceleration is different in both cases because, the force applied is different. Acceleration is force divided by mass of the object. Thus, Justin had greater force than Oscar.
What is force ?Force is an external agent acting on body to change its motion or deform it. There are various kinds of forces such as frictional force, gravitational force, nuclear force etc.
According to Newton's second law of motion, the force acting on an object is the product of its mass and acceleration.
Thus, F = ma
Hence, as the force increases the body is accelerated more.
With the same mass for the two balls, the force used to hit it was different and thus, the acceleration differs in both cases. Therefore, Justin has the greater force.
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1. How does the structure of a hard-boiled egg compare to the crust, mantle, and core structure of Earth? What do the egg's layers represent? What might the cracks represent?
2. How do Earth's layers compare in composition and properties with the egg's layers?
3. Can an egg be used as a satisfactory model for Earth's lithosphere (plates) and asthenosphere, plus the rest of the mantle, and the core? How? (Hint: Look very carefully under the shell could the membrane there represent the asthenosphere?)
4. Overall, is the cracked egg a useful model for Earth? Why or why not?
5. Unlike the eggshell sections, Earth's plates move relative to one another. A plate may move away from another plate, or it may move toward it. Earthquakes often result from interactions between plates. Predict what other consequences might result from plate motion.
6. Of the several possible non-egg models of Earth, which do you feel is most appropriate? Why?
7. Of the several possible nonegg models of Earth, which do you feel is least appropriate? Why?
Answers
Answer:
2. Earth layers compare in egg layer it is hard on the outside
Explanation:
Answer: for 1 and 2 The inside of the earth is layered something like an egg. Both have a thin, brittle shell. The crust of the earth is broken into pieces, like the cracked shell of a hard boiled egg. The mantle of the earth is like the egg white, and the core of the earth lies in the center, like the egg yolk.
for 3 the shell could also be used because you can crack
for 5 a few things that can happen in the result of plate motion there could be Mt formation or volcano formations.
Explanation:
I hope this helps :)
Choose all the answers that apply.
Stars:
usually seem bright if they are close to Earth
are terrestrial bodies
use their own matter to create nuclear reactions
generate their own energy
are classified primarily by temperature
Answers
Answer:
use their own matter to create nuclear reactions
generate their own energy
are classified primarily by temperature
usually seem bright if they are close to Earth
Explanation:
The answers that apply for the stars are 1,2,4 and 5. Stars usually seem bright if they are close to Earth.
What is a star?A star is a heavenly body made up of a brilliant spheroid of plasma held together by gravity. The Sun is the closest star to Earth.
Many additional stars may be seen with the normal eye at night, but due to their great distance from Earth, they appear as stationary points of light in the sky.
The answers that apply for the stars are as follows;
1. Usually seem bright if they are close to Earth.
2. Stars are terrestrial bodies.
4. They generate their own energy.
5. Stars are classified primarily by temperature.
The answers that apply for the stars are 1,2,4 and 5.
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Please complete this in 3-5 sentences.
Answers
Answer:
Magnetic forces are stronger closer to magnets. The Wednesday launch stored more potential energy, and launched the spacecraft at a faster speed because the stronger magnetic field closer to the magnet resulted in a greater increase in potential energy.
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which statement describes how adding oil effects the mechanical efficiency of a car's engine?
Answers
Answer:
Mechanical efficiency accounts for losses due to engine friction and ancillaries such as the lubricant pump, coolant pump, fuel pump and cooling fan. Engine friction arises whenever there is relative motion between parts. Journal bearings on the crankshaft, connecting rods and camshaft as well as piston rings and piston skirts are important sources
Explanation:
what does an unconformity in a sequence of rock layers reveal about geologic history?
a. An organism went extinct during that time
b. a layer of rock might have eroded causing a gap in the record
c. the layers of rock cover hundreds of square miles
d. the new rock layers have been deposited very quickly
Answers
When you drop something, first of all it accelerates.
The faster it falls, the bigger the force of ______ that acts on it.
choose from the list to complete the sentence:
friction gravity air pressure
note: apparently the answer is friction but it doesn't make sense to me so please explain.
Answers
The faster an object is going, the more resistance there will be. An example of this would be if you're running the faster you run, the more air is going against you.
I hope this helps!
How does the sport curling relate to Newton’s Second Law of Motion?
Answers
Curling is a sport in which players slide stones across a distance of ice toward a target area. The purpose is to accumulate the loftiest score for a game by making monuments rest closest to the center of the target at the end of each side. There are two brigades. Each platoon is trying to keep the other platoon's monuments down from the target by knocking their monuments out of the way.
Newton's Second Law " The acceleration of an object is directly commensurable to the net force acting on it and is equally commensurable to its mass. The direction of the acceleration is in the same direction as the net force acting on an object." This relates to the formula F = ma. The mass of the determinedness monuments in curling is 38 to 44 pounds or 17.3 to 20 kg. The thing of the sweepers is to control the acceleration of the gravestone by reducing disunion on the ice, which affects the force with which the gravestone is suitable to impact the other monuments.
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Second law-
Newtons second law occurs during curling when the delivery man, such as Glenn Howard, applies force to the stone pushing down the lane to the target while friction pulls it back the other way to a slow stop. The mass of the stone is 40lbs and the net force of everything on item will give you its slowly decreasing acceleration. Otherwise known as, F=mA.
Third law-
This law can be exerted in the sport of curling when the force behind a stone being delivered is transferred into another stone that is at rest, where the energy and force of one moving object is transferred to another. This almost completely stops the original stone, and gives some speed to the stone(s) it collides with.
schematic of curling stone Formula for curling-
F=mA
Which most likely has the greatest conductivity? a warm plastic rod a cool rubber tube a cool silver strip a warm copper wire
Answers
Answer:
Copper
Explanation:
Plastic and Rubber are both bad conductors of electricity so it cant be those
Copper is a good conducter of electricity since it warms up it allows electrons to move easily faster than silver.
A cool silver strip most likely has the greatest conductivity.
What is meant by conductivity ?The ability of a material to transmit heat or an electric charge through it is measured by its conductivity.
Here,
A conductor is a substance that offers extremely little resistance to the transmission of thermal or electrical energy.
Metals, semiconductors, and insulators are the three main categories of materials. The least conductive materials are called insulators which include ceramic, wood, and plastic, while metals are the most conductive materials.
Of all metals, silver has the highest electrical conductivity. In actuality, silver is the benchmark metal against which all other metals are measured for conductivity.
On a scale of 0 to 100, silver scores a perfect 100, followed by copper at 97 and gold at 76.
Hence,
A cool silver strip most likely has the greatest conductivity.
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Your science teacher gives you three liquids to pour into a jar. After pouring all of them into the jar, the liquids layer as seen in the image. What property of matter prevents the three liquids from mixing together? answers: density texture color mass
Answers
Answer:
Density
Explanation:
Each of the three liquids have different densities. Have you ever tried to mix oil and water? They don't mix because they have different densities.
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
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 :)
What discoveries support the idea of continental drift?
Answers
Answer: With the discovery of plate tectonics and the mapping of the earth into about 12 plates, plus the understanding that plates' movement caused earthquakes, Alfred Wegener's idea of " continental drift" looked less ludicrous than his contemporaries had thought.
Explanation: Hope this works :)! If not, I am sorry :(. If it does, Your Welcome! :)
Answer: With the discovery of plate tectonics and the mapping of the earth into about 12 plates, plus the understanding that plates' movement caused earthquakes, Alfred Wegener's idea of " continental drift" looked less ludicrous than his contemporaries had thought.
Explanation: Hope this works :)! If not, I am sorry :(. If it does, Your Welcome! :)
Please help! It has to deal with Newton's 3rd law! 30 points! and if right brainliest!
Answers
Answer:
Newton's Third Law
His third law states that for every action (force) in nature there is an equal and opposite reaction
Explanation:
Have you ever, loved and hated someone at the same time?
Answers
Answer:
yes
Explanation:
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 someone lifts less weight than you, explain why that person could be considered more powerful.
Answers
Answer:
there faster
Explanation:
stronger,wiser,better,THEY ARE BETTTEEEEEEEERRRRRRRR
Answer:
they're so strong that they don't need to lift heavy weights anymore because they're experts (slay lol). so they just have a simple daily workout.
PLS HELP NOW!! I WILL GIVE LOTS OF COINS! In general, explain the amount of force that is applied to both objects during ANY
collision, no matter how big or small, the weight/mass, or velocity of the objects.
Answers
In a collision between two objects, both objects experience forces that are equal in magnitude and opposite in direction. Such forces often cause one object to speed up (gain momentum) and the other object to slow down (lose momentum). According to Newton's third law, the forces on the two objects are equal in magnitude.
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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.
what's the answer quick help me please
Answers
After analyzing the above problem, we can conclude that the best parameters are options A, C & D in the above case.
To determine which projects meet the family’s eligibility criteria for maximal energy savings per dollar spent on the project, we can calculate each project's energy savings per dollar per year. This can be calculated by dividing the annual energy savings by the cost of the project. Here are the calculations for each project:
Install more attic insulation: annual energy savings per dollar = 550 / 1900 ≈ 0.289Install energy-efficient doors: energy saved per dollar per year = 50 / 400 = 0.125Closed air leakage from the attic: energy savings per dollar per year = 200 / 300 ≈ 0.667Seal crawl space under the house: Energy saved per dollar per year = 350 / 1500 ≈ 0.233Install storm doors: annual energy savings per dollar = 25 / 300 ≈ 0.083Based on annual energy savings per dollar spent on the project, the three projects that best meet the family’s values are:
Closed air leaking from the attic: This project has the highest energy savings per dollar spent, about 0.667.Install more roof insulation: This project's energy savings per dollar is slightly less than covering the leaks, but it is still slightly higher at 0.289.Seal Crawl Space Under House: This project also provides slightly better energy savings per dollar, around 0.233.These three initiatives (Closed air leakage from the attic, installing more insulation, and crawl space under the house) may result in significant energy savings and more efficient use of a family’s budget than any.
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3. Using the Kinetic Molecular Theory of Matter explain what is happening to the liquid in a thermometer when it measures something that is hot. What about when it measures something that is cold
Answers
According to the Kinetic Molecular Theory of Matter, the temperature of a substance is directly proportional to the average kinetic energy of the particles that make up the substance.
When a liquid thermometer measures something that is hot, the particles in the hot substance have a higher kinetic energy than the particles in the liquid thermometer. This causes the particles in the liquid thermometer to gain kinetic energy and move faster. As they move faster, they take up more space, causing the liquid to expand and rise in the thermometer.
On the other hand, when a liquid thermometer measures something that is cold, the particles in the cold substance have a lower kinetic energy than the particles in the liquid thermometer. This causes the particles in the liquid thermometer to lose kinetic energy and move slower. As they move slower, they take up less space, causing the liquid to contract and fall in the thermometer.
Therefore, when a liquid thermometer measures something that is hot, the liquid expands and rises in the thermometer, and when it measures something that is cold, the liquid contracts and falls in the thermometer.
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Explain what happens as the heart grows bigger.
Answers
Initially, the heart may grow bigger as a compensatory mechanism to try to keep up with increased demands for blood and oxygen. For example, if a person engages in regular exercise, their heart may enlarge to accommodate the increased demand for blood and oxygen to the muscles.
However, if the heart continues to grow over time, it can become less efficient at pumping blood and may develop structural abnormalities that increase the risk of heart failure, arrhythmias, and other complications.
In some cases, cardiac hypertrophy may be reversible if the underlying cause is treated, such as by managing high blood pressure or heart disease. However, if left untreated, hypertrophy can lead to irreversible damage to the heart muscle and may require more aggressive interventions, such as medication, surgery, or other medical procedures to manage the condition.