Which converts mechanical energy to electrical energy?
A. A flashlight
B. An electric motor
C. A generator
D. An electromagnet
Answers
Answer:
c. A Generator
Explanation:
The whole point of a generator is to produce electrical energy. The generator will use a mechanical motor usually running off of gas to produce electricity.
Related Questions
What is the answer to mgh =1/2 mv^2 + 1/5 mv^2 ???
Answers
Answer:
v = sqrt((10/7)gh)
Explanation:
The given equation is:
mgh = (1/2)mv^2 + (1/5)mv^2
To solve for v, we can start by simplifying the right side of the equation:
mgh = (7/10)mv^2
Dividing both sides by (7/10)mv^2, we get:
mgh / (7/10)mv^2 = 1
Multiplying both sides by (10/7)m/gh, we get:
v^2 = (10/7)gh
Taking the square root of both sides, we get:
v = sqrt((10/7)gh)
Therefore, the solution for v in terms of m, g, h is:
v = sqrt((10/7)gh)
Describe a situation where you can be traveling at a low rate of speed but have an extremely high velocity. Please help within 10 minutes! Worth lots of points!
Answers
If it were not for this, your car would be unable to move.
torque and traction
O centrifugal force and kinetic energy
centrifugal force and gravity
torque and centrifugal force
Answers
Answer:
centrifugal force and kinetic energy
Explanation:
Without centrifugal force and kinetic energy, a car would be unable to move.
A centrifugal force regulates the speed of the engine using spinning masses and causes radial movement when the engine changes speed.
The kinetic energy is the energy which an object possesses due to its motion and car also require kinetic energy to move.
Hence, the correct answer is centrifugal force and kinetic energy.
Explanation:
suppose that the acceleration of an object is zero. Does this mean that there is no force acting on it?
Answers
Answer:
not necessarily. It could mean that the forces acting on the object are balances and that the net force of the object is 0.
Explanation:
An example would be if you get a book on the table. It doesn't move; however, the force of gravity pulls downwards onto it while the normal force of the table will try to push up on it. These forces will be equal but opposite and are balanced.
~cosmic snowball
~orbits our Sun
~frozen gases, rock and dust
~may have brought water to Earth
~dust and gases form a tail that stretches away from the Sun
The prompt above is describing what celestial body?
A) asteroid
B) comet
C) meteor
D) meteoroid
Answers
Answer:
B comet
Explanation:
The prompt above is describing what celestial body comet.
What is comet?Comets are large objects made of dust and ice that orbit the Sun. Best known for their long, streaming tails,
these ancient objects are leftovers from the formation of the solar system 4.6 billion years ago.
Comets are mostly found way out in the solar system. Some exist in a wide disk beyond the orbit of Neptune called the Kuiper Belt.
We call these short-period comets. They take less than 200 years to orbit the Sun.
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Tanya planted seedlings in her garden over the weekend. The instructions that came with the seedlings stated that they need to be planted 0.2 meters apart. Tanya has a measuring tape that has values in centimeters. Help Tanya convert meters to centimeters.
Determine the ratio to use: .
Tanya should plant the saplings 20 centimeters apart.
1 meter is equal to 100 centimeters.
Multiply the given value by the ratio: .
Answers
Answer:
Explanation:
1 meter = 100 cm
1 cm = 10 mm
Then,
0.2 m * 100 cm / 1 m = 20 cm
This does not seem like a physics question ??
A woman is walking at 4 m/s. She is accelerating at a rate of 1 m/s2. To find out what her velocity is after 3 seconds, what else do you need to know?
Answers
Answer: Displacement
A balanced chemical equation reflects the idea that the mass of the products. A.is greater than the mass of the reactants. B.is less than the mass of the reactants. C.equals the mass of the reactants. D.is not related to the mass of the reactants.
Answers
Answer:
My answer to the question is option C.
A balanced chemical equation reflects the idea that the mass of the products is equal to the mass of the reactants. The correct option is C.
In a balanced chemical equation, the mass of the products must be equal to the mass of the reactants.
According to the law of conservation of mass, in a chemical reaction, the mass of the products must be equal to the mass of the reactants because matter cannot be created or destroyed, it only can be transformed.
For example, for the given reaction:
CH₄ + 2O₂ → CO₂ + 2H₂O
The mass of the reaction is:
\( m_{CH_{4}} + m_{O_{2}} = m_{CO_{2}} + m_{H_{2}O} \)
So the sum of the masses of the reactants must be equal to the sum of the masses of the products.
Therefore, the correct option is C.
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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.
Answers
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.
PLEASE HELP!!!
Multiple Choice
How much force is needed to make a 60 kg object accelerate at a rate of 2.0 m/s2?
O A 62 N
O B. 62 kg
O C. 120 N
O D. 120 kg
Answers
F= (60 )(2m/s2) = 120N
A = c) 120N
What activities could increase your chances of having mutations in your body?
IN YOUR OWN WORDS.
Answers
Answer: Partaking in activities that damage a human’s internal system. Although it is difficult to force mutations upon oneself, it has been proven semi-possible.
Examples: Smoking, Drugs, Alchohal, etc.
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
You have an old style reel lawn mower at home. No engine! You need to cut the grass but also finish in time to watch your favorite Tv show. How would you apply Newton’s second law of motion here?
Answers
Answer:
the force on an object is equal to its mass times its acceleration.
Explanation:
the more heavier the object (lawn mower) the more time it will take to cut the grass due to that the tv show will be gone
The mass of the old-style reel lawn mower will be large, it will take to too much time to cut the grass as the acceleration of the lawn mower will be less.
What is Newton's second law of motion?According to Newton’s second law of motion, the force equals mass times acceleration for a constant mass.
This states that the acceleration of an object depends on two variables. The first one is the mass of the object and the net force acting on the object. The acceleration is directly proportional to the net force acting on the body and inversely proportional to the mass.
The expression of Newton’s second law can be written as follows:
F = ma or a = F/m
The expression shows that the direction of the acceleration vector is the same direction as the net force vector.
The acceleration of the mower will be inversely proportional to the mass of the lawn mower. The larger the mass of the mower, the smaller the acceleration produced by a given force in the mower.
Therefore, an old-style reel lawn mower will take more time to cut the grass.
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There is no Science section so I'm going to as the question here.
In science, scale is the relationship between a...
Answers
Answer:
Generally, in science scale is used to describe the size or volume of something.
Explanation:
I'm not sure what science you're talking about but in chemistry, scale the range in mass or volume of a chemical reaction.
Also there isn't a 'science section' but there are separate sections for different types of sciences like chem and bio.
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.
The work input = _____.
F i ÷ d i
F o ÷ d o
F o × d o
F i × d i
Answers
The work input = Fi × di
How to solve for work input?To solve for work input, you need to know the force acting on an object and the distance it moves in the direction of the force. Work input is defined as the product of force and distance, given by the formula:
Work Input = Force × Distance × cosθ
Where θ is the angle between the force vector and the direction of motion. If the force is applied in the direction of motion, then θ = 0 and cosθ = 1, so the formula simplifies to:
Work Input = Force × Distance
For example, if you are pushing a box with a force of 50 newtons over a distance of 10 meters, the work input would be:
Work Input = 50 N × 10 m × cos(0°) = 500 Joules
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Answer: F i × d i
Explanation:
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
Someone places a spoon in hot water. The spoon remains in the water till the water becomes room temperature, what temperature is the spoon handle?
Answers
Answer: Room temperature
Explanation: it makes sense (sorry if its wrong)
What type of circuit is this in the picture? (Lesson 4.07)
A: Parallel
B: Open
C: Ac
D: Series
Answers
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:
what are the 27 vawels
Answers
Answer:
umm i really don't know... sorry
Explanation:
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:
For the effective radiation of heat from an electric heater. Why should we polish it to shine but not keep it clean or paint it green or black?
Answers
Answer:
Polish it to shine
Explanation:
Why don't you feel the pressure exerted by the atmosphere?
Answers
Answer:
the air within our bodies (in our lungs and stomachs, for example) is exerting the same pressure outwards so there's no pressure difference and no need for us to exert any effort.
Explanation:
Because in our body blood also exerts pressure that's why we don't feel atmospheric pressure.
I need help plz and thank you. This is past due and I will mark brainiest
Assignment Directions:
Choose 3 out of the 4 written assignments below to complete.
1. In a short paragraph, argue whether Abner Doubleday invented baseball.
2. Why was the decade 1920-1929 called the “Roaring Twenties”? Include a description of life during that era with the body of the essay to include three of the ten categories you outlined in your online notes.
4. Write an essay on a player in the Hall of Fame. Describe why they were inducted, their contribution to the game, the position and team they played for, and the year they played. Include anecdotes on the era they played.
Assignment Guidelines:
Written work must include accurate details
State a clear topic sentence for each paragraph
Include details and examples
Include a clear point of view
Submission Requirements:
Submit 3 of the 4 choices, each with its own title
When submitting written assignments please remember to:
• Submit the assignment question(s) and your responses.
• Proof-read for spelling, grammar, and punctuation.
• Remember complete sentence structure.
• Paragraphs need to have minimum of six sentences.
Answers
Answer:
reproduced in print form for non-profit educational use with. Reading ... 2. I had them in my backpack. 3. Help me look for them. 4. We don't want to get lost. 5. I'm so ... Commas set off introductory words, such as yes, no, and thank you. Rewrite ... Correct each run-on sentence below by writing it as a compound sentence. 1.
Explanation:
Question is in the picture
Answers
Answer: Imma say 63 cm
First Amendment
Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances.
Based on the First Amendment, which statement can you assume to be true about the Founding Fathers?
They believed government would not make laws that affected rights.
They were concerned about the government having too much power.
They were concerned the people would not rally behind a single religion.
They believed the proper role of citizens was to leave politics to their leaders.
Answers
Answer:
They were concerned about the government having too much power.
Answer:
B. They were concerned about the government having too much power.
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:
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
Which item produces the magnetic field in the electromagnet?
Answers
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
"How does mass affect thermal energy transfer?
Answers
Answer:
The greater the mass of a substance the more thermal energy. The thermal energy of a substance depends on the temperature and mass of that substance.
Explanation:
Answer:
Explanation:
If two objects have the same mass, the object with the higher temperature has greater thermal energy. Temperature affects thermal energy, but temperature isn't the same thing as thermal energy. That's because an object's mass also affects its thermal energy.
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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