Were the continents once joined together as a supercontinent? Give 3 pieces of evidence to support Alfred Wegeners Theory of Continental Drift.
The density of aluminum is 2.7 gm/ cm3 and iron is 7.8 gm/ cm3. If both metals have the same value of mass i.e. 10 gm, which metal will have more volume?
Answer:
27
Explanation:
27
Which sentence correctly describes Earth’s layers?
a. The crust is below the mantle.
b. The mantle is below the core.
c. The mantle is above the crust.
d. The mantle is below the crust.
Answer:
D. The mantle is below the crust.
Explanation:
D is the only correct answer.
ILL MARK BRAINLEIST
Select the ALL correct sentences on the image.
Matthew throws a ball straight up into the air. It rises for a period of time and then begins to drop. At which points in the ball’s journey will gravity be the greatest force acting on the ball?
Answer:
The ball falling down
Explanation: Because once the ball starts going down it means that the applied force on the ball is no longer higher than the gravitational force on the ball.
Answer:
when the ball reaches maximum height
Explanation:
Type of machine. For each example, decide if it changes the size of the
force, if it changes the distance the force acts, and if it changes the
direction of a force. Some machines may change the force in more than
one way (these have an *) and will each have 2 answers.
Answer:
1. distance, direction
2. size, direction
3. size, distance
4. direction, size
5. distance, direction
6. direction, size
7. direction, size
8. size, distance
9. direction, distance
10. size, distance
Explanation:
Huan wants to enter the science fair at his school. He has a list of ideas for his project. Which questions could be answered through scientific investigation? Check all that apply. Does pressure have an effect on the solubility of a substance? Which physicist was the smartest? Is the information on the periodic table difficult to understand? Which brand of soap is the best for cleaning grease off of dishes? Which laboratory experiment is the most fun to perform?
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.
A 10 gram ball is held 2 meters from the ground. It has potential energy. Calculate it.
Answer:
196J or 200J
Explanation:
Potential Energy = mgh
m( mass) = 10gm
h ( height) = 2m
g = 9.8 or 10 m/s ^2 ( choose whichever one is taught to you, usually in my school its 9.8 if the value isn't given )
PE = 10 × 10 × 2 = 200 J
or
PE = 10 × 9.8 × 2 = 196 J
Hope it helps
Answer:
200J
Explanation:
2m x 10gm = 200
Any other Gypresgions come from shakespeare and are they used today?
Answer:Both books find Shakespeare deeply Catholic, but they reach very different conclusions about what that meant in his life and work during a time of official Protestantism, the Jesuit mission to England, and sharp divisions among Anglicans, Puritans, and Catholics.
Explanation:
Explain what happens as the heart grows bigger.
Please help! It has to deal with Newton's 3rd law! 30 points! and if right brainliest!
Answer:
Newton's Third Law
His third law states that for every action (force) in nature there is an equal and opposite reaction
Explanation:
Describe the units used to measure mass and volume.
Answer:
Mass measures the amount of matter in a substance or an object. The basic SI unit for mass is the kilogram (kg). Volume measures the amount of space that a substance or an object takes up. The basic SI unit for volume is the cubic meter (m3)
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
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
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
Does the number of particles change as the substance changes its state?
Answer:
no
Explanation:
No, the number of particles does not change as the substance changes its state. Change of state from one phase to another is achieved by providing or absorbing heat or pressure. For instance, liquid water if heated becomes vapour steam and if cooled becomes solid ice.
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.
1.What is a non example of constant?
2.What is an example of constant?
Answer:
1. A non example of a constant in physics is a value that changes. For example, the temperature of Hong Kong, let's say, is not a constant, since it changes and does not stay at the same value. It gets higher in the summer and lower in the winter.
2. An example of a constant in physics would be the gravitational acceleration of the Earth. Since the Earth's mass' changes is negligible when compared with the overall mass of the Earth (unless something big happens, of course, like a meteor or asteroid), the gravitational acceleration on Earth is largely unchanged, even constant from our viewpoint.
Explanation:
Hope this helped!
Answer:
a science experiment, the controlled or constant variable is a variable that does not change. For example, in an experiment to test the effect of different lights on plants, other factors that affect plant growth and health, such as soil quality and watering, would need to remain constant. a dependant variable(opposite)would be the properties of the plants themselves, which the scientist is observing in relation to the changing light. These properties might include the plants' color, height and general health of the plant
hope this helped
Help please answer my previous and question and this one! Random answers and links will be reported.
Heat can be transferred from one object to another by ______.
A Conduction
B Translation
C Condition
D Restriction
Heat can be transferred in three ways: by conduction, convection, and by radiation. Only conduction is on the options so it would be A
Answer the following questions in the essay box below.
Why does the coil keep spinning?
Which way is electricity flowing?
Answer:
The coil keeps spinning because of the interaction between the magnetic field generated by the flow of electricity in the coil and the magnetic field of the permanent magnet surrounding it. This interaction creates a force that causes the coil to rotate continuously.
As for the direction of the electricity flow, it depends on the design of the coil and the direction of the magnetic field. If the coil is connected to a direct current (DC) source, the electricity will flow in a single direction. If the coil is connected to an alternating current (AC) source, the direction of the electricity flow will change periodically, typically many times per second.
In general, the direction of the electricity flow can be determined using Faraday's law of electromagnetic induction, which states that a changing magnetic field will induce an electromotive force (EMF) in a conductor, which will cause electricity to flow in the conductor. The direction of the induced EMF and the resulting electricity flow will depend on the direction of the changing magnetic field and the direction of the coil.
Explanation:
Answer:
The inertia of the rotating coil carries it through half of a turn, past the insulating paint. When the electric current starts to flow again, the twisting force is in the same direction as it was before. The coil continues to rotate in the same direction.
The permanent magnets exert forces on the electrical currents flowing through the loop of wire.
Two pine cones are falling from a pine tree. Both pine cones are falling at the same speed.
If Pine Cone 1 has LESS MASS than Pine Cone 2, which pine cone has more kinetic energy?
Answer:
Pine cone 2 does, the more mass an object has, the more kinetic energy is has.
Explanation:
Brainliest Please?
What happens to the density of a material if you have a larger piece of it?(1 point)
The density will be smaller because the mass remains the same as the volume increases.
The density will be smaller because the mass remains the same as the volume increases.
The density will be greater because the mass increases but the volume remains the same.
The density will be greater because the mass increases but the volume remains the same.
The density will remain the same because mass and volume will both increase in the same way.
The density will remain the same because mass and volume will both increase in the same way.
The density will remain the same because mass and volume will remain the same.
The density will remain the same because mass and volume will remain the same.
Answer:
The density is more?
Explanation:
hopefully its right
A transformer has 500 loops in its primary coil and 5,000 loops in its secondary coil. What is the voltage in the primary coil if the voltage in the secondary coil is 20,000 v?
Answer:
2000v
Explanation:
How does the agricultural activity most likely affect the surface water of the area?
Answer:
Agriculture has been the cause of significant modification of landscapes throughout the world. Tillage of land changes the infiltration and runoff characteristics of the land surface, which affects recharge to ground water, delivery of water and sediment to surface-water bodies, and evapotranspiration.
Explanation:
What will happen when you slide the sponges in different directions?
Transform boundary
is the answer from stemscopes
The sponges will contract when there is a slide of sponges in different directions.
What are the sponges?Sponges are called as the members of the phylum Porifera. This is a basic animal group and the diploblasts' sibling. They are multicellular creatures with pores and channels that let water to move through their bodies, which are made of jelly-like mesohyl sandwiched between two thin layers of cells.
Sea sponges were among the earliest animal groups to form on Earth, but new chemical evidence puts their appearance 120 million years earlier than previously assumed, according to New Scientist.
According to the research, it is found that When there is a sliding of sponges in opposite directions, the sponges will compress. As water filters through the porous shell of a sponge, it develops motion, obtains food and oxygen, and expel waste.
Therefore, Flagella, microscopic hairlike structures inside the sponge, produce currents that filter germs out of the sponge's cells and trap food within them.
To learn more about the sponges, refer to:
https://brainly.com/question/3606056
#SPJ2
A car starts from rest and accelerates at 2m/s² for 30 seconds. He then travel and constant speed for 1 minute and finally decelerates at 4m/s².
Find max speed,
Total distance covered?
Answer:
60
Explanation:
15 miles
WILL RATE BRAINLIEST!!!
When you use electricity in your home,
which resources are powering it?
Research the energy resources used
to power your state’s electrical grid
(that’s what supplies your home with
electricity). In the space below or on
a separate sheet of paper, create an
informative handout to provide to the
people of your state.
Include the following information in your handout:
• Which state do you live in?
• What is the population of your state?
• What percent of the electricity in your state comes from
nonrenewable resources?
• What percent of the electricity in your state comes from
renewable resources?
• What percent of the electricity in your state comes from
nuclear energy?
• Which renewable resource is used the most in your state?
• What is an interesting fact about energy usage in your
state?
I live in United Arab Emarates/Dubai
Powering Your Home: Understanding Energy Resources in Dubai, United Arab Emirates
Dubai, one of the seven emirates of the United Arab Emirates, is a rapidly growing city with a population of over 3.3 million people. With the increase in population and development, the demand for electricity has also risen significantly. Have you ever wondered where the electricity that powers your home comes from? In this handout, we will provide you with information about the energy resources used to power the electrical grid in Dubai.
Nonrenewable Resources:
Dubai relies heavily on nonrenewable resources such as natural gas and oil to generate electricity. As per Dubai Electricity and Water Authority (DEWA), in 2020, 94% of the electricity generated in Dubai came from natural gas and 6% from coal.
Renewable Resources:
Dubai has been working to diversify its energy mix by investing in renewable resources. According to DEWA, 6% of Dubai's electricity in 2020 was generated from renewable sources, such as solar and waste-to-energy. DEWA has set a target to increase the share of renewable energy in Dubai's energy mix to 75% by 2050.
Nuclear Energy:
Dubai is also investing in nuclear energy to diversify its energy mix. The first nuclear power plant in the UAE, the Barakah Nuclear Energy Plant, started operations in 2020. It is expected to generate 5.6 GW of electricity and will contribute to reducing carbon emissions.
Most Used Renewable Resource:
Dubai has the world's largest single-site solar energy project, the Mohammed bin Rashid Al Maktoum Solar Park. It is a key component of Dubai's clean energy strategy, and its capacity is expected to reach 5 GW by 2030. The solar park uses photovoltaic solar panels to convert sunlight into electricity.
Interesting Fact:
Dubai is home to the world's tallest building, the Burj Khalifa, which has been designed to be energy-efficient. It uses a combination of technologies such as a high-performance glass facade, an efficient air-conditioning system, and a double-decker elevator system that reduces energy consumption by 20%.
Conclusion:
Dubai's energy mix is currently dominated by nonrenewable resources, with natural gas being the primary source of electricity generation. However, the city is making significant strides to increase the share of renewable energy and diversify its energy mix. By investing in nuclear energy and the Mohammed bin Rashid Al Maktoum Solar Park, Dubai is working towards achieving its goal of becoming a sustainable city and reducing its carbon footprint.
Answer: Windmills and solar panels
Explanation: It is used by solar energy from energy and friction with the atmosphere and CO2
Use the chemical reaction to answer the question.
Answer:
60 grams
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 holds a galaxy together?
- Magnetism
- Centripetal force
- Atmospheric pressure
- Gravity
how does a free fall drop ride work with newtons 3rd law?
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.