After observing the waves on a slinky, Andrew records that he counted 15 waves every 2 seconds.
What is the frequency of the wave?
Answers
Related Questions
Which of the following forces has not changed Earth's surface?
folding
erosion
weathering
gravity
Answers
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
Why is Christchurch, New Zealand’s air temperature cooler than usual during El Nino years?
Answers
Answer:
During normal years energy transfers from the ocean to the air. However, during El Nino years, the current is not as warm, so less energy will transfer from the current to the air, making Christchurch cooler than usual. During El Niño years, the normal prevailing winds are disrupted.
Explanation:
During normal years energy transfers from the ocean to the air. However, during El Nino years, the current is not as warm, so less energy will transfer from the current to the air, making Christchurch cooler than usual. During El Niño years, the normal prevailing winds are disrupted.
what is the mass of a plastic spoon
Answers
Answer:
i would think 1.3 g
Explanation:
Does cereal actually make you taller?
Answers
Answer: no I don’t think so
Explanation:
Answer:
unfortunately no, cereal itself won’t help you too much with height...but it does if added with milk..since milk helps :D
What is the slope of the graph?
Answers
Answer:
Pick two points on the line and determine their coordinates. Determine the difference in y-coordinates of these two points (rise). Determine the difference in x-coordinates for these two points (run). Divide the difference in y-coordinates by the difference in x-coordinates (rise/run or slope). I cant help you unless I know what coordinates you are wanting to use.
Explanation:
But, we know the formula for slope is y = mx + b. I attached a picture that might be able to help you.
Slope is change in y/change in x, it is “1x” but you don’t write the 1
Please select the word from the list that best fits the definition
Gives a pictorial indication of how far and fast an object has moved
a. speed
b. velocity
c. frame of reference
Answers
Answer: the answer is C
Explanation:
hope it helps friend :)
The instruments carried by a spacecraft are called the
A) cargo
B) orbit
C) payload
D) camera
plsss help me if answer is correct i will award brainliest and add as friend
Answers
Answer:
A. Cargo
Explanation:
I know my phisics
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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
Answers
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
What is the momentum of a man of mass 10kg when he walks with a uniform velocity of 2m/s.
(point stealers will be reported so pls dont do it)
Answers
Answer:
\(Momentum(p) = 20kgm/s\)
Explanation:
Given
Mass = 10kg
Velocity = 2m/s
Required
Calculate the momentum of the man
Momentum is calculated as thus
\(Momentum(p) = Mass(m) * Velocity(v)\)
or
\(p = mv\)
So; to solve this question; we simply substitute 10kg for mass and 2m/s for velocity in the above formula;
The formula becomes
\(Momentum(p) = 10kg * 2m/s\)
\(Momentum(p) = 10 * 2 * kg * m/s\)
\(Momentum(p) = 20kgm/s\)
Hence, the momentum of the man is \(20kgm/s\)
List an example of matter in each of the three states.
Answers
The example of matter in the three states is brick in solid state, water in liquid state and oxygen gas in gaseous state.
1. Solid: A brick is a solid object that maintains a fixed shape and volume.
2. Liquid: A glass of water is a liquid that conforms to the shape of its container but maintains a definite volume.
3. Gas: Oxygen gas in the atmosphere is a gas that does not have a fixed shape or volume, filling the available space.
The three states of matter are solid, liquid, and gas. Solids have a fixed shape and volume, such as an ice cube. Liquids have a definite volume but take the shape of their container, like water. Gases have neither a fixed shape nor volume and fill the entire space available to them, such as the air we breathe.
In summary, the states of matter describe the physical properties of substances based on the arrangement and movement of their particles, with solids having a fixed shape, liquids taking the shape of their container, and gases being free-flowing and filling all available space.
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Solid: An object that keeps a constant shape and volume is a brick.
Thus, Liquid: A glass of water is a liquid that keeps a consistent volume while taking on the shape of its container. Gas: Oxygen gas fills the available space in the atmosphere and does not have a defined shape or volume.
Gas, liquid, and solid matter can exist in any combination. Solids, like an ice cube, have a set shape and volume.
Like water, liquids have a set capacity but adopt the shape of their container. Gases, like the air we breathe, have neither a set shape nor volume and fill all available space.
Thus, Solid: An object that keeps a constant shape and volume is a brick.
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Mandeep climbs up a 10 meter ladder with a force of 4 Newtons in 20 seconds. What is his power output?
40 Nm/sec
2 Nm
2 Nm/sec
40 Nm
Answers
Explanation:
Work Done = Force * Displacement
= (4N)(10m) = 40J.
Power = Work Done / Time
= (40J)/(20s) = 2J/s = 2 Nm/sec.
Answer:
40 m
Explanation:
Chemical energy sources are often portable and provide large amounts of energy. Fossil fuels are one kind of chemical energy source. Most of the energy we use in the United States is generated by the combustion of fossil fuels. However, fossil fuel combustion adds greenhouse gases to the atmosphere, mostly CO2. One measure of the total amount of greenhouse gases that are emitted into the atmosphere each year is called a carbon footprint. Read this article to compare the carbon footprint of an average person in the United States to an average person around the world. Knowing that greenhouse gases are contributing to climate change, how can we reduce our carbon footprint, particularly in the United States? Could hydrogen fuel replace fossil fuels in the future? Why or why not? Should the size of a person’s carbon footprint be limited by law? Why or why not?
Answers
Answer:
You can reduce our carbon footprints by using renewable energy,calculate your carbon footprint and make changes,use car less and minimize driving and walk or cycle more and reduce water use. Hydrogen fuel can not replace fossil fuels this is because fossil fuel use more energy and make more pollution.
Explanation:
For an individual to reduce his or her carbon footprint, they can:
Reduce the use of automobileswitch other renewable energy sources like solar energyHydrogen fuels are clean energy sources and should replace fossil fuels.
Carbon footprint should be regulated by law in order to reduce the amount of greenhouse gases.
What is a carbon footprint?A carbon footprint is the measure of the total amount of greenhouse gases that are emitted into the atmosphere each year by an individual.
Greenhouse gases are responsible for global warming.
For an individual to reduce his or her carbon footprint, they can:
Reduce the use of automobileswitch other renewable energy sources like solar energyHydrogen fuels are able to replace fossil fuels as they are clean energy sources.
An individual's carbon footprint should be regulated by law in order to reduce the amount of greenhouse gases released.
In conclusion, greenhouse gases are responsible for global warming.
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Describe the difference between global knowledge and personal ideas.
Answers
Answer:
Global knowledge is information that is widely accepted and been proven as the truth. It is information that may not necessarily have a source because it is common knowledge and not easily attributed to a certain source. Personal ideas are original to the author and may not be widely accepted. It is important to give credit to others by citing their work to acknowledge that this is not your own findings but rather someone else's. It is plagiarism to use someone else's work as your own without giving credit to their work. -W0lf93
Explanation:
hope this helps
How do we know there has not been an increase in the number of earthquakes? Officials from the U.S. Geological Survey, the government agency that keeps track of earthquakes, point to statistics. On average, there have been no more earthquakes so far in 2010 than there were in previous years.
What Happens During Earthquakes?
In reality, it's not the number of quakes that has gained our attention, but the devastating impact quakes can have. Earthquakes are very natural—it's inevitable that they'll happen because of the way the planet works. The earth's surface is made up of tectonic plates that fit together like puzzle pieces and are always moving past each other. When two of the plates' edges get caught, stress builds up at the fault line—the crack between the plates. When the plates are finally able to break free of each other, the stress is released, and an earthquake occurs. Earthquakes of varying strengths happen every day, usually at fault lines. Some of these quakes have a high magnitude, while others are relatively weak. But it's often where an earthquake takes place that determines whether it will be something that goes largely unnoticed, or a disaster that affects thousands of people.
What Is Changing?
In the past, earthquakes were not as much of a problem because Earth's population was smaller, and cities were less populated.
"Look at some of the big [earthquakes] recently," said Debarati Guha-Sapir of the World Health Organization. Guha-Sapir cited some earthquakes that took place in areas where the population had increased in recent years, making the quakes more serious. "Had the Izmit or Bhuj quakes [of 1999 and 2001] happened 30 years ago, the events would have been relatively insignificant, as the [populations] of these cities were a third of what [they were when the earthquakes happened]. Increasing population density makes a small event into a big one."
Some of the earthquakes that took place in early 2010 occurred in highly populated areas, as well. More people are moving into megacities that happen to be built on fault lines—and many cities are on fault lines. Of the 130 cities with more than one million people, more than half are in earthquake zones, making them more prone to earthquakes.
In many of these cities, officials have drawn up laws requiring that buildings be designed and constructed to endure earthquakes. But some cities, particularly those in developing countries, lack the resources to do this. There, people are rapidly putting up substandard buildings that can't withstand the force of the shaking earth. For example, the Haiti earthquake took place near the nation's crowded capital. There was a great deal of destruction because there were "too many people crammed into a city that wasn't meant to have that many people and have an earthquake," said University of Miami geologist Tim Dixon.
Another reason quakes seem worse is that we're paying more attention. Everyone noticed when the Haiti earthquake was quickly followed by the Chile earthquake. Many people watched the news and the Internet for updates on these disasters, unable to believe that they were seeing two major earthquakes in such a short period of time. But eventually, the earth will have a period when earthquakes are minor or in unpopulated areas. Then people won't notice quite so much anymore.
"People are paying attention to the violent planet we've always lived in," said Dennis Mileti, a seismic researcher. "Come back [at a time when] there have been no [noticeable] earthquakes, [and] most people will have forgotten [about them] again."
According to the article, what is one reason why it seems as if the world is experiencing more earthquakes than usual?
Answers
Answer: because there has not been one in years
Explanation: there was not on now 2023, 2022, 2021, 2020, and 2019
Answer:
The number of earthquakes has not increased because earthquakes didn't happen in the USA for a while.
Explanation:
The transfer of energy by electromagnetic
#A. Radiation
#B. Convection
#C. Conduction
#D. Thermal energy
Answers
Answer:
Explanation:its thermal energy.There are three methods of thermal energy transfer: conduction, convection, and radiation
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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3. Which of the following describes why fossil fuels are nonrenewable?
A) It is very difficult to drill for fossil fuels, and we don't have the resources to do it.
B) Fossil fuels formed from plants and animals that lived many, many years ago.
C) Fossil fuels are destroyed when we use them.
Answers
Answer:
C.
Explanation:
What are the three types of heat transfer in the Earth’s atmosphere.
Answers
Answer:
Radiation, conduction, and convection.
Explanation:
Radiation:
Radiation heat transfer occurs through electromagnetic waves. Unlike conduction and convection, radiation does not need a medium for transmission. Solar radiation energy traverses a 93-million-mile vacuum to warm the EarthConduction:
Conduction is the process by which heat energy is transmitted through collisions between neighboring atoms or molecules. Conduction occurs more readily in solids and liquids, where the particles are closer together, than in gases, where particles are farther apart.Convection:
The process by which heat is transferred by the movement of a heated fluid, such as air or water.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 activities could increase your chances of having mutations in your body?
IN YOUR OWN WORDS.
Answers
An average amount acquired mutations are react able and caused by the things that’s are exposed to nature and the environment, such as radiation,hormones, and cigarette smoke.
_______ is the amount of matter in an object.
Question 1 options:
Mass
Weight
Gravity
Answers
In 2-4 sentences, summarize what you know about EM waves.
PLEASE HURRY! I'M TIMED! WILL GIVE BRAINLIEST!
Answers
Answer:
In physics, electromagnetic radiation refers to the waves of the electromagnetic field, propagating through space, carrying electromagnetic radiant energy. It includes radio waves, microwaves, infrared, light, ultraviolet, X-rays, and gamma rays.
(you can just say a color)
Answers
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.
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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For each of the following four topics, write a paragraph answering the questions below each topic. This exercise should help you decide which topic on which you would prefer to write.
1.Compare and contrast a sport that is played in two different parts of the world. Describe how differently it is played in the two regions, and the impact it has on the two societies.
a. What interests you about this topic?
b. What sport and regions do you think you would choose and why?
c. How would you go about getting information on this topic?
Answers
Being interested in a certain topic wants to study (or emerge as concerned with) that subject matter for its personal sake.
Describe how differently it is played in the two regions.dual sports activities are performed by two human beings opposing every different, while crew sports contain prepared companies of people competing in opposition to every different.twin sports are performed through two people opposing every different, while team sports activities involve organized businesses of humans competing with every other.Many sports activities rely on desires, which might be points scored in soccer, lacrosse, and floor hockey, whilst other sports activities depend upon points with a landing, runs, or falls.Learn more about team sports here:-
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You design toys for a toy company. Your boss wants you to hook up the lights in the toy car you are working on in the cheapest way possible, without consideration of the quality of the toy. Which circuit should you use if you want to save money by using fewer parts? Why would this circuit be cheaper?
Answers
Parallel circuits because, electrons continue to flow in a parallel circuit even if part of the circuit is broken
I do not understand Net Force at all- I would really appreciate it! I'll also include a brainliest since it is quite a bit! Thank you!
Answers
Answer:
See below
Explanation:
Net Force is the force which is the sum of all the forces acting on object i.e. pushing of pulling.
Net Force:
1) 4N (net force is 4N to the left)
2) 2 - 7 = -5N (net force is 5N to the left)
3) 4 - 4 = 0 (net force Zero)
4) 6 + 3 = 9N (net force is 9N to the right)
5) 4 - 8 = -4N (net force is 4N to the left)
6) 4 - 5 = -1N (net force is 1N to the left)
7) -3 - 3 = -6N (net force is 6N to the left)
8) 2 + 4 - 5 = 1N (net force is 1N to the right)
9) 3 - 6 = -3N (net force is 3N to the left)
10. 4 + 4 - 7 - 1N (net force is 1N to the right)
A carrot has a volume of 180 cubic centimeters and a mass of 81 grams . Calculate its destiny
Answers
Answer:
0.45 grams per cu centimeter
Explanation:
Earth's atmosphere is composed of
A.
iron, oxygen, and silicon.
B.
nitrogen, oxygen, and trace amounts of other gases.
C.
water, liquid oxygen, and trace amounts of other liquids.
D.
carbon dioxide, ozone, and magnesium.
Answers
Answer: B
Explanation:
:)
The rover Spirit is a robotic probe that NASA has placed on Mars. The
gravitational attraction of Mars is approximately 62% less than that of Earth. Compared to its measurements on Earth, on Mars the probe has
-the same weight and the same mass.
-a larger weight, but smaller mass.
-a smaller mass and larger weight.
- a smaller weight and the same mass.
Answers
Answer:
D) a smaller weight and the same mass is the answer
Explanation:
The rover Spirit is having a smaller weight and the same mass on Mars because of the Strength of Gravity on Mars
The Strength of Gravity depends on the mass of the object as gravity is directly proportional to mass which means more mass more gravity and vice versa
Another example of an object-to-gravity relation is SUN as Sun is the biggest object in the solar system it has the greatest Gravitational pull which is keeping the planets in the solar system intact and in their paths
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