Answer:
95%
Explanation:
hope i helped sorry
Answer: Arctic sea ice has declined by an average of 27,000 square miles a year, an area the size of North Dakota that melts each year and doesn't grow back. In July of 2020, the area covered by sea ice in the Arctic Ocean reached a new low for the month.
What type of circuit does this figure represent?
open parallel circuit
closed series circuit
open series circuit
closed parallel circuit
Answer:
the best answer would be b. :)
Explanation:
Answer:
Closed series circuit
A closed series circuit is characterized with having a smooth and running path in which electric current flows .In this type of circuit there is no breakage found and is the same as the example provided above.
The open circuit usually has one or more forms of breakage which hinders the smooth flow of electric current and makes it less functional.
The pattern of electric current flow is also in series as there is no parallel connection which makes closed series circuit correct and the closed parallel false
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PLEASE ANSWER dont answer if you dont know
Think about what forces are involved in the different parts of this investigation. Explain why there is a difference in the amount of Newtons measured when you weighed the objects versus when you pulled the objects across a surface. Your answer should mention how the force=mass*acceleration formula is involved.
Answer:
leval of friction
Explanation:
1. In Physics, we distinguish between wave motion and particle motion Wave motion
refers to the movement of a wave-like pattern from one location on the medium to
another. When you view a water wave moving along the surface of water, you are
observing wave motion. There is a very obvious movement of a collection of crests and
troughs along the water surface. In the Simple Wave Simulator, there is a collection of
crests and troughs moving through a rope this is wave motion. But there are also three
points on the rope that are colored red. When you observe the motion of these points.
you are observing particle motion - the motion of particles of the rope. Describe the
motion of these particles.
Answer:
Look at explanation
Explanation:
One of the easier ways to define wave motion is the continuous movement of particles. When we have a rope for example and whip it, the first particle bumps into the second one then into the third and so on and so forth until the end of the rope. Particles can only move up and down or left and right and the vibration caused by each particle is what sets off the wave motion.
Now use the temperature change simulation to carry out your experiment. Record your data, as well as any necessary calculations, in the table. You can modify the table, if necessary, so it matches your experimental procedure.
Answer: Unable to answer.
Explanation: If you link the simulation, I can answer it for you.
A woman performs 2000 J of work in order to push a cart full of groceries 50 meters. How much force did she apply to the cart? *
The transfer of energy by electromagnetic
#A. Radiation
#B. Convection
#C. Conduction
#D. Thermal energy
Answer:
Explanation:its thermal energy.There are three methods of thermal energy transfer: conduction, convection, and radiation
Use Data to show the iml
Answer:
what I show me a image plz mark me as brainleast
Discuss one component of your school's recycling system that could be automated and predict the economic impact.
One component of my school's recycling system that could be automated is the sorting of recyclables. Currently, the school relies on students and staff to sort recyclables into the appropriate bins, which can be time-consuming and may result in contamination if materials are not sorted properly.
Automating the sorting process with a machine or conveyor belt system could improve the efficiency and accuracy of the recycling system. It could also potentially reduce labor costs associated with manual sorting.
The economic impact of automating the sorting process would depend on the initial cost of the equipment and any associated installation or maintenance costs. However, over time, the improved efficiency and accuracy of the system could result in cost savings for the school. Additionally, the increased efficiency of the system could potentially lead to increased recycling rates, which could result in cost savings for waste disposal and potentially generate revenue through the sale of recycled materials.
Answer:
Our school has color coded virtual trash cans. For example, a trash can for only paper will only accept paper items, if the item put inside is not paper, it will litter it out and all students have cleaning duties throughout the week so even if you or someone litters you’ll probably have to clean it up at some point anyways. I honestly think it’s very cool. (i wish this was true smh).
Which item produces the magnetic field in the electromagnet?
The magnet produces a magnetic field. Item A makes the magnetic field in the electromagnet.
Explanation:
Item A is called a magnet. It has a North pole and a South pole. The electrons move from the North to the south poles, creating a magnetic force.
This Magnetic field creates a magnetic field around a magnet.
Answer: D
Explanation: it is made of metal which attracts the magnetic force field
The kinetic energy of the pom-pom came from potential energy in the system.
How did potential energy gets stored in the spring/pom-pom system?
Answer:
I believe that the answer is that in physics, potential energy is the energy held by an object because of its position relative to other objects, stresses within itself, its electric charge, or other factors. Common types of potential energy include the gravitational potential energy of an object that depends on its mass and its distance from the center of mass of another object, the elastic potential energy of an extended spring, and the electric potential energy of an electric charge in an electric field.
The elastic potential energy of a spring is the energy stored in the spring due to its elastic nature.
The potential energy stored in a spring is known as elastic potential energy. The elastic potential energy of a spring is the energy stored in the spring due to its elastic nature.
For example, when a spring is compressed it acquires potential energy which will be converted to kinetic energy of the object impacted by the spring.
The elastic potential energy of spring is given as;
\(U_x = \frac{1}{2}kx^2\)
where;
k is the spring constantx is the extension of the spring.Thus, we can conclude that, the elastic potential energy of a spring is the energy stored in the spring due to its elastic nature.
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Create your own real world example of how the application of they scientific discovery has help create a new technology
Scientific discovery has helped create new technology which is pretty evident from the different technological products we are using in our day-to-day life such as mobile phones, computers, nuclear power plants, and other technological advancements.
What is science?Science is the methodical, empirically-based pursuit and application of knowledge and understanding of the natural and social worlds.
A method of learning about the world is science. Science allows people to participate in the creation of new knowledge as well as use that knowledge to further their goals. It is both a process, a product, and an institution.
The various technical items we use in our daily lives, such as mobile phones, computers, nuclear power plants, and other technological breakthroughs, are very strong evidence that scientific research has contributed to the creation of new technology.
Thus, by the above-mentioned example, we can say that scientific discovery has helped create new technology.
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In which state is the best known source of petrified wood located? A Arizona B Alaska C California D Colorado
Answer:
Arizona.
Explanation:
Petrified Forest National Park is an American national park in Navajo and Apache counties in northeastern Arizona. Named for its large deposits of petrified wood, the park covers about 346 square miles (900 square kilometers), encompassing semi-desert shrub steppe as well as highly eroded and colorful badlands.
1 sentence telling me the topic of the story. In your own words.
3 sentences you copy straight from the magazine with "quotation" marks around it. This sentence proves that the topic is what you stated in the first sentence.
1 sentence telling me the conclusion. In your own words.
3 sentences you copy straight from the magazine with "quotation" marks around it. This sentence proves that the conclusion is what you stated in the sentence above this one
The average woodpecker smashes its beak against a hard surface more than 10,000 times a day. Any human who jolted their head like this would likely end up with a concussion. This traumatic brain injury is caused by a blow to the skull. So why doesn’t the constant hammering turn woodpeckers’ brains into mush? For years, it was assumed that woodpeckers had some kind of cushioning in their heads to protect their brains during pecking. Many scientists suggested that spongy bone in the birds’ skulls absorbed and lessened the shock of each impact (see Myth Buster: Hard Headed). This idea was repeated in scientific articles, textbooks, and informative plaques at zoos. Even though the concept “is often presented like a clear-cut fact, there haven’t been any real tests to prove it,” says Sam Van Wassenbergh. He’s a biologist who studies biomechanics, or how living things move, at the University of Antwerp in Belgium.SHOCK ABSORBER: Van Wassenbergh uses a spring-loaded hammer to show why a shock-absorbing skull would make a woodpecker less efficient at pecking. When you think about it, says Van Wassenbergh, the shock-absorbing skull idea doesn’t make much sense. Woodpecker drills into the wood in search of insects to eat. When the bird’s head accelerates forward, the movement generates kinetic energy. This energy of motion is transferred to the tree when the bird slams its beak against the trunk. If a woodpecker’s skull had to cushion, it would absorb some of this energy and decrease the force of the peck. Why would a bird that survives by pecking evolve to do it less effectively? Van Wassenbergh and his team decided to see what was really going on. First, the researchers recorded videos of woodpeckers’ heads in motion. To capture this rapid movement, the scientists needed special high-speed cameras. Each peck lasts only a fraction of a second! Van Wassenbergh’s team recorded videos of six woodpeckers from three species and analyzed the footage. The researchers used a computer to track three points on each bird’s head: one on the skull and two on the beak. The scientists hypothesized that if the birds’ skulls had shock absorbers, the footage would show a “squishing” of the space between the skull and beak—like when a spring compresses. But that didn’t happen. Instead, the birds’ heads moved as one stiff unit, like a hammer. Next, the team wanted to demonstrate why this adaptation would be helpful to the birds. Using computer models, the scientists simulated woodpecker skulls with and without shock absorbers. Then the researchers compared the force of the pecks. “The pecking performance was greatly reduced in the skull with a shock absorber,” says Maja Mielke, a biologist who worked on the study. With shock absorbers, says Mielke, “the poor birds would need to pound even harder to reach the same results.” For a woodpecker, having a shock-absorbing skull would simply be a waste of energy. Science World originally published this diagram in our May 10, 2021, issue. It was based on scientists’ beliefs about woodpecker anatomy at the time. Here it is again—updated based on new research. MYTH: The skull is made of spongy bone that cushions and protects the brain from impactBUSTED! The skull is hard enough to protect the bird from injury, but it doesn’t cushion The eyes have a special membrane that protects them from flying splinters and wood dust.MYTH: Neck muscles are strong and stiff enough to absorb the shock of each peck BUSTED! Stiff neck muscles do not absorb shock—in fact, they help increase the force of each peck.MYTH: The tongue wraps completely around the outside of the skull, providing an additional level of cushioning, and can extend to probe for food inside holes made by the birdBUSTED! The tongue does not provide any observable cushioning. The beak is connected to the skull with thick bone that prevents jolts and vibrations. NEW RESEARCH SHOWS: The woodpecker’s brain is small, which helps prevent concussions that might occur in a larger animal. If woodpeckers’ skulls don’t absorb shock, then why doesn’t constant pecking damage the birds’ brains? To answer this question, the researchers calculated how harmful the blows from pecking actually are. It turns out the hits aren’t that dangerous because the birds’ brains are so small. “Small masses can tolerate stronger impact forces without being damaged,” says Mielke.
Answer:
The topic of the story is about how woodpeckers can peck without causing damage to their brains.
"The average woodpecker smashes its beak against a hard surface more than 10,000 times a day."
"This traumatic brain injury is caused by a blow to the skull."
"So why doesn’t the constant hammering turn woodpeckers’ brains into mush?"
The conclusion of the story is that woodpeckers don't get brain damage from pecking because their brains are small, which allows them to handle the force of the pecks.
"Small masses can tolerate stronger impact forces without being damaged,"
"The hits aren’t that dangerous because the birds’ brains are so small."
"To answer this question, the researchers calculated how harmful the blows from pecking actually are."
Explanation:
what is the amount of protons, neutrons, and electrons in the atom to make water
Answer:
10 protons 8 neutrons 10 electrons
Use the data in the table to explain how you could determine the volume of the block.
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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___________ are over 500 million years old and have been developing their unique system all that time.
A.
Fish
B.
Octopi
C.
Snails
D.
Jellyfish
Answer:
C
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:
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
What was the largest group in the colonies in the year leading up to the American revoulation
25 POINTS! Q1) A cinder block is pulled 0.50 meters to the right in 3 seconds. What is the block's average speed to the nearest hundredth of a meter per second (m/s)?
Q2) A skateboarder starts at the top of a halfpipe ramp, skates through the middle, and up the other side. Match the following to describe what is happening at each of the three points in the skater's movement.
Middle
End
Beginning
1.
Maximum kinetic energy
2.
Potential and kinetic energy is equal
3.
Maximum potential energy
PLEASE 78 POINTS I NEED HELP!!!!!!!!! LAB REPORT OCEAN CURRENTS K12!!!!
Based on scientific evidence, we can conclude that temperature and salinity are crucial factors that affect the flow of water and have significant implications for the stability and functioning of ocean currents and circulation patterns.
What is the effect of temperature and salinity on the the flow of water?Based on scientific evidence, temperature and salinity are two key factors that affect the flow of water.
Generally, water with higher salinity and colder temperatures tends to be denser, resulting in it sinking towards the bottom of a body of water. Conversely, water with lower salinity and warmer temperatures tends to be less dense, causing it to rise towards the surface. This phenomenon is known as thermohaline circulation or the global ocean conveyor belt.
One evidence-based claim about how temperature and salinity affect water flow is that variations in temperature and salinity can cause changes in ocean currents and circulation patterns. For instance, when there is a significant increase in temperature, ice caps and glaciers may melt, resulting in an influx of freshwater that can decrease the salinity of surrounding water. This decrease in salinity can affect the density of water, leading to changes in ocean currents and potentially disrupting the global ocean conveyor belt.
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Complete question:
1. What conclusions can you draw about how temperature and salinity affect the flow of water? Write an evidence-based claim.
2. Draw a diagram (develop a model) that shows what happens when warm water mixes with cold water in the ocean. Use your model to explain how this causes ocean currents.
List the events in order from OLDEST to YOUNGEST
Would a moon much smaller than our moon exert a gravitational pull on objects, too? How about something the size of a mountain? Or a building? A car? An apple? Describe the effect that mass has on the gravitational pull of an object.
Answer: no
Explanation:
What type of circuit is this in the picture? (Lesson 4.07)
A: Parallel
B: Open
C: Ac
D: Series
Answer: hope this helps ♡
A: Parallel
Explanation:
It's a parallel circuit because it has two or more paths for the electricity to flow through (the paths are parallel).
Answer:
A
Explanation:
Aristotle was one of the first people to classify life on Earth. He grouped animals based on how they moved. He sorted animal species into those who could fly, walk, or swim. Which of the questions below would help you determine the problem with Aristotle’s classification system?
A.
Did Aristotle name organisms based on the group into which they were classified?
B.
Did Aristotle further break down groups into smaller and smaller groups?
C.
Did Aristotle identify some organisms that could be placed in two different categories during their lives?
D.
Did Aristotle group organisms based on physical characteristics?
As per the question, Aristotle discovers first-class life on earth. He grouped animals and species that could move and also sorted as per walking, swimming, and flying ability.
The question arises as to whether Aristotle based his classification on the names of the classes o which he classified.The option A is correct.
learn more about the first people to classify life on Earth.
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What type of presentation us easier to plan using a site map?
A. a presentation that lets users link our from a “home” page or slide
B. an animation created digitally using a program like Flash
C. a slide show that starts on slide one and goes slide by slide to the end
Answer:
I believe that the answer would be A
Explanation:
because there is all of the examples I found online have a home page.
Vector A→ has a magnitude of 8 units and makes an angle of 45° with the positive x-axis. Vector B→ also has a magnitude of 8 units and is directed along the negative x-axis. Using graphical methods, find (a) the vector sum A→ + B→ and (b) the vector difference A→ - B→
Answer:A + B = 6,123 units at angle 112,5 degrees.
A - B = 14,782 units at angle 22,5 degrees.
Explanation:
Answer:A + B = 6,123 units at angle 112,5 degrees.
A - B = 14,782 units at angle 22,5 degrees.
Phycics math dah
Explanation:
What two gases in the atmosphere do animals and plants need to breathe and grow?
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.
help me pls ill give brainliest thingyy
A spaceship fires a movement thruster, releasing gases at high pressure.
What are the forces in the force pair for this example?
a) the force the gasses apply to the ship
the force the ship applies to the gasses
b) the force the gasses apply to space
the force the ship applies to the gasses
c) the force the gasses apply to space
the force the ship applies to gasses
d) the force the gasses apply to the ship
the force the ship applies to space
Can a flame be two different colors
Answer:
Yeah, it can be yellowish-orange or blue
Explanation:
It depends on the energy level of photons emitted
Answer: yes it can be yellow orange, blue, white
Explanation: