Answer:
P-waves travel through liquids and solid while S-waves only travel through solids.
Explanation:
Scientists are able to use the fact that P-waves travel through both solids and liquids and waves travel through only solids to determine what makes the different layers of the Earth.
Describe how the size of the starting force affects the distance moved by the car.
Answer:
There are two forces acting in opposition to the driving force, so the friction and the road and the air resistance. The air resistance is much greater than the friction with the road when a vehicle is in motion. When a vehicle is at rest, all of the forces acting on it are balanced.
Which of the following forces has not changed Earth's surface?
folding
erosion
weathering
gravity
Answer:Gravity is the force among the options listed that has not directly changed Earth's surface.
Explanation:
Gravity is a fundamental force that acts on all objects with mass, including the Earth itself, but it does not cause changes or modifications to the Earth's surface features. Instead, gravity influences the movement of materials and the shape of the Earth's surface by exerting a pulling force on objects. On the other hand, folding, erosion, and weathering are all processes that directly contribute to shaping
help me pls i need the answer
(you can just say a color)
Answer:
I think its red
Explanation:
divide the distance 8000 by the hours 10 to get 800
Answer:
Red.
Explanation:
If you divide the distance by the time, you will discover that the airplane traveled 800 miles per hour.
Pls mark Brainliest with the crown.
PART A: The image shows a person looking at the Moon through a telescope. Describe how light travels from the sky to the viewer’s eye.
Part B
The light rays come close together as they travel from the large mirror to the small mirror. How do you think this affects the size and clarity of the image the viewer sees?
Part C
How does the eyepiece change the image for the viewer?
Part D
The eyepiece has a curved piece of glass that bends light rays toward the center. What is the bending of light called?
Answer:
Describe how light travels from the sky to the viewer's eye. First, light from the sky travels into the concave mirror, which reflects the light to a smaller and flat mirror. Then, the small mirror reflects that light into the telescope's magnifying lens. This lens makes the light reach the viewer's eyes.
Why is it important the process of mitosis?
Pls answer ASAP please its due in 20 minutes
if a marble took 1.63 seconds to go the first 50cm's, and 1.89 seconds to go the second 50cm's, and then 2.69 seconds to go the whole 100cm's, what was the average velocity and acceleration for the marble?
Extra info: The table was tilted 20 degrees upwards
Please answer an real answer and not a bunch of random words or letters, or I will report you. Thank you! <3
Answer:
Students measure the distance a marble rolls and the time it takes to roll. They then calculate the speed using the equation: Speed = Distance / Time.Jan 16, 2017
Explanation:
What is the main reason for running one experiment that has an independent variable and running one variable with everything the same except that it does not have the independent variable?
Answer:
when you run one experiment and it is off and then do the same experiment again that makes it not have a independent variable.
Explanation:
It’s 11:53pm right now and I have just this assignment left to do for this class, I need this assignment done so I don’t fail this class, can I get some help please, I will literally give you brainliest if I get full and correct answers I just need to finish this now and I’m exhuasted, watching the video for it would just make me too tired to stay awke thank you
Answer:
Explanation:
1 matter
2 the chain / air pressure
3 gravity
4 in the cup
5 inertia
6 pushed or pulled
7 rest
8 motion
9 mass
10 reaction
11 b
12 a
13 grams
14 listen to the song
Sorry, another question on this packet! What are my drawing supposed to look like on these questions?
Answer:
Draw an underwater maps of the things
Explanation:
Just follow the instructions and draw a picture that doesn't include water, life ect.
Q1. Think up some examples of your own.
Write four more sentences, one
for each of the words 'push', 'pull', 'stretch' and 'turn'.
answer as a 7th grader, i need all answers.
Answer:
Explanation:
u deserve brainliest
(science)
pls help, due today and I have alot more to do
Answer:
I can help
Explanation:
hold on
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:
please in the name of god help me guys.
1. D: the ability to cause a change or do work
The others dont make sense for energy.
2. C: Lamp
A lamp uses the electric current to light up a room, or area.
3. B: foil will bend away
The same charges repel each other that is why a magnet is repelled by the same pole of another magnet.
4. A: Sound
You can’t hear light or any of the other options.
5. A: gravity
Gravity is a force of nature that pulls on everything.
6. C: static electricity
The opposite charges stick to each other, a battery again is an example of this.
7. B: a copper nail
Metal is one of the best electric conductors.
8. C: closed circuit
This is because if a circuit is closed the electricity flows through perfectly but for example an open one would not work or it would leak energy.
Hope this helps
Can you please help me with this test
I’m not smart and don’t know Nothing
I need this before 3:00
(I’ll give brainlest, thank you, and five starts)
Answer:
Explanation:
3. False
4. Visible light
5. False
6.infared
7. Radio waves
Answer:
3. true. 4. infrared. 5. true. 6. infrared. 7. radio waves. 8. kill bacteria. 9. x-rays. 10. ultraviolet rays. 11. visible light. 12. Radio waves (least) Gamma ray (most)
Explanation:
Explore the intricacies and conceptual challenges of the Holographic Principle in the context of the AdS/CFT correspondence. Investigate the fundamental ideas behind the holographic duality proposed by Juan Maldacena, which suggests an equivalence between a higher-dimensional gravitational theory and a lower-dimensional quantum field theory. Analyze the mathematical foundations and implications of this principle, including the idea that all the information contained within a region of space can be encoded on its boundary. Assess the potential revolutionary impact of the Holographic Principle on our understanding of quantum gravity, black holes, and the nature of spacetime itself.
Answer:
The Holographic Principle, proposed by physicist Gerard 't Hooft and further developed by Juan Maldacena, is a fascinating concept in theoretical physics that has sparked significant interest and research. In the context of the AdS/CFT correspondence, it suggests that a gravitational theory in a higher-dimensional space can be mathematically equivalent to a quantum field theory in a lower-dimensional space.
At the heart of the Holographic Principle is the idea that the information and dynamics of a higher-dimensional theory can be fully captured by its boundary, implying that the entire bulk can be "holographically" encoded on the boundary. This concept challenges our conventional understanding of the relationship between space, gravity, and quantum mechanics.
The holographic duality proposed by Maldacena specifically relates a gravitational theory in Anti-de Sitter space (AdS) with a conformal field theory (CFT) in one fewer dimension. In this correspondence, the gravitational theory describes a curved space-time with gravity, while the CFT is a quantum field theory without gravity but living on the boundary of the AdS space. The holographic duality suggests that the two theories are mathematically equivalent and provide equivalent descriptions of the same physical phenomena.
The mathematical foundations of the AdS/CFT correspondence involve advanced concepts from string theory and quantum field theory. String theory postulates that fundamental particles are not point-like entities but rather tiny vibrating strings. By considering these strings propagating in a higher-dimensional space, theorists discovered that they naturally give rise to gravity. The holographic duality emerged as a surprising consequence of studying string theory in the AdS space.
The implications of the Holographic Principle are profound. First and foremost, it suggests a deep connection between gravity and quantum mechanics, two fundamental pillars of modern physics that have been notoriously difficult to reconcile. The holographic duality provides a framework to study strongly interacting quantum systems in terms of gravity, enabling insights into the nature of black holes, the behavior of matter in extreme conditions, and other phenomena that are challenging to analyze using traditional methods.
The Holographic Principle also has potential implications for our understanding of black holes. It proposes that the information that falls into a black hole is not destroyed, as suggested by the Hawking radiation phenomenon, but rather encoded on its event horizon. This idea, known as the "holographic encoding of information," has stirred intense debates and ongoing research in the field of black hole information paradox.
Furthermore, the Holographic Principle challenges our traditional notions of spacetime. It suggests that spacetime, as we perceive it, might emerge as an approximation or an emergent property from a more fundamental description involving quantum information. This notion aligns with the concept of "entanglement entropy," which measures the entanglement between quantum states and has been linked to the geometry of spacetime.
The potential revolutionary impact of the Holographic Principle lies in its potential to provide a unified framework for understanding quantum gravity and resolving long-standing mysteries in theoretical physics. It opens new avenues for studying the nature of black holes, the behavior of matter in extreme conditions, and the fundamental structure of the universe. However, it is important to note that the Holographic Principle is still an area of active research, and many aspects of its implications and applications continue to be explored and refined by physicists.
What path does heat follow when it is transferred?
Responses
lower temperature to higher temperature
,
back and forth between higher and lower temperatures
temperature does not affect the path that heat takes
higher temperature to lower temperature
i have used it before but i dont know what it means WTH DOES AI MEAN
Answer:
It stands for Artificial Intelligence
Explanation:
What is the study of sound waves called?
short answer pls
Answer:
Acoustics
Explanation: It’s the branch of physics that deals with the study of mechanical waves in gases, liquids, and solids including topics such as vibration, sound, ultrasound and infrasound.
Answer:
Acoustics
Explanation:
Acoustics is the branch of physics concerned with the study of sound (mechanical waves in gases, liquids, and solids). A scientist who works in the field of acoustics is an acoustician. The application of acoustics in technology is called acoustical engineering.
Which of the following best expresses the definition for weight?
A: Weight is the mass of an object divided by its volume. Strike Reset
B: Weight is the measure of the force of gravity applied to an object. Strike Reset
C: Weight is the measure of the amount of matter in an object. Strike Reset
D: Weight is the measure of the amount of space an object occupies. Strike Reset
Mark Question For Review
Answer:
B
..................
Help due 2:45 est (SCIENCE)
Does the moon have gravity? How do you know? Support your answer using evidence.
Answer:
Gravity is experienced on the moon but since the moon is much smaller and has less mass than the Earth, the gravitational pull on the surface is lower compared to that on the surface of Earth.
Explanation:
Which sentence is an example of how a scientist might use a model?
Stopwatches measure the amount of time it takes for runners to complete a mile.
Marbles placed inside a hollow sphere are used to describe protons in a nucleus.
A wrench is used to tighten a nut onto a piece of wood.
Microscopes are used to magnify a group of cells on sets of slides.
Answer:
Marbles placed inside a hollow sphere are used to describe protons in a nucleus.
Explanation:
nvm yeah its prob the marble one
brick has a mass of 100 G and a volume of 25 cm squared, if you chop the brick in half what is the density of one half of the brick?
Answer: Density is defined as mass divided by volume, therefore: 100g/25cm3 = 4 g/cm3.
Explanation:
Answer:
Density is defined as mass divided by volume, therefore: 100g/25cm3 = 4 g/cm3.
this is for 6.02 in comprehensive science for flvs
4. How does this simulation demonstrate the law of universal gravitation?
Answer:
Please provide an image to help clarify
Explanation:
thanks :)
give two examples that demonstrates the law of reflection
You can see yourself in the mirror through the reflection of light and the waves of the ocean/water
which statement describes how adding oil effects the mechanical efficiency of a car's engine?
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:
The ________ principle states an object submerged in liquid experiences an upthrust equal to the weight of the displaced liquid.
Archimedes' principle states an object submerged in liquid experiences an upthrust equal to the weight of the displaced liquid.
What is Archimedes' principle?As per the Archimedes' principle, "A body immersed in a fluid, whether partially or totally submerged, experiences an upward buoyant force that acts at the center of mass of the displaced fluid and is equal to the weight of the fluid that the body displaces."
What is upthrust or buoyant force?A submerged object feels more pressure on its bottom surface than its top surface when it is partially or entirely submerged. There is an upward push as a result of this. Upthrust or buoyant force is the term for this force.
Hence, Archimedes' principle states that an object submerged in liquid experiences an upthrust equal to the weight of the displaced liquid.
Learn more about Archimedes' principle here:
https://brainly.com/question/13106989
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A 65 kg bungee jumper jumps off of a bridge. At an instant when they are 50 m above the ground, they are falling at a speed of 40 m/s, and the elastic in their bungee cord
(k = 650 N / m) is stretched by a distance of 2.0 m. What is the total mechanical energy of the bungee jumper at this instant ?
a. 1300 J
b. 52000 J
c. 31850 J
d. 85150 J
Answer:
the mechanical energy = a 1300J
please help me with these two questions... thanks
For this assignment, you will research how to design and build a solar cooker. Search reliable online sites
for “solar cookers.” After getting the materials you need from your teacher, you will present your initial
design as a drawing or illustration. You will then build your device and test its efficiency by warming up a
hot dog until it reaches an internal temperature of 165°F, recording how long it took you to reach this
temperature. Based on your tests, you will make recommendations on how to improve the design of your
solar cooker, and then present your final design and the logic that supports it in a lab report. Your lab
report should include a title, a list of materials that you used to build your solar cooker, a drawing of your
initial design, observations from your experimental tests, recommendations for a final design based on
what you know about radiation, a drawing of your final design, and the results of the efficiency test. To
help you write your lab report, there is a Student Worksheet on the last few pages of this document.
Answer:
Ideas for Prototype Design
Similar to a cardboard oven just smaller and solar powered
Preliminary Sketches (attach separate paper, if needed)
Option A: i gave the picture
Advantages: Disadvantages:
the tin foil will attract the sun if theres enough heat for the food to warm up
the plastic will keep bugs and/or animal away from getting it it might take longer
the box gives the food something to be in instead of the ground
Option B: i think im going to stay with my original plan i can always make changesMore advantages and disadvantges
Advantages: Disadvantages:
reducing my carbon footprint by alot heat varies so the food my take really really long
using no energy other than the sun.