Four springs are stretched to the same distance from the equilibrium position. The spring constants are listed in the table. A 2 column table with 4 rows. The first column is labeled spring with entries W, X, Y, Z. The second column is labeled spring constant in newtons per meter with entries 24, 35, 22, 15. Which lists the springs based on the amount of elastic potential energy, from greatest to least?

Answer:

X,W,Y,Z

Explanation:

It is what it is. and i took the edge test

Answer:

or b on edge 2021

Explanation:

(science)
(due in 30 mins pls help)

Fill in the blanks with the vocabulary words

Vocabulary:
Energy
Work
Potential Energy
Gravity
Kinetic Energy​

If a roller coaster cart needs more Kinetic Energy to reach the top of the track, what are two ways to increase the amount of Kinetic Energy the cart has? Provide evidence to support your answer.

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

At the top of its swing, a pendulum has zero kinetic energy. How much potential energy does it have at the bottom of its swing?



A.
maximum
B.
1/2 as much
C.
1/4 as much
D.
zero

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?

contrast radiation with conduction
( keep it short and simple , make one sentence . )

Match the correct sentence together.

Questions:
10 pounds 20 feet =
37 pounds 10 feet =
29 newtons 10 meters =
30 newtons 2 meters =

Answers:
200 foot-pounds
60 newton-meters
290 newton-meters
20 foot-pounds
370 foot-pounds

what is the central idea
During Bonneville's 2018 World of Speed event a modified 2019 Volkswagen Jetta sedan hit a speed of 210.16 miles per hour. The races were held in September this year. The Jetta beat the previous record for its class of 208.472 miles per hour.

This, of course, was no ordinary Jetta. It featured some serious upgrades to get to its 600-horsepower rating. This included a turbocharged 2.0-liter engine that was thoroughly worked over. VW also removed all non-essential interior components to reduce the car's weight. This is common with race cars. They modified the suspension. They improved its traction with a limited-slip differential. They also put on wheels and tires better suited to the salty surface.

Let's back up first and give a bit of history on the area. Humans have been racing on the Bonneville Salt Flats for over 100 years, which seems like a long time in the world of motorsports. The area's history, however, is much longer and richer. Utah's Great Salt Lake covered a much bigger area, a lake that was later named Lake Bonneville. When Lake Bonneville dried up about 14,500 years ago, leaving mostly desert in its wake, salty plains remained. This remote section of Utah covers about 4,000 square miles. It includes the famous Bonneville Salt Flats. It is owned and managed by the federal government's Bureau of Land Management.

Such record-breaking speeds are possible here because the area is extremely flat. It's so flat you can see the curvature of the Earth. And cars can run for miles without any obstacles. Furthermore, the salt holds moisture that cools the cars' tires. This helps prevent premature degrading of the rubber.

For these reasons the area draws large annual events. August's Bonneville Speed Week and September's World of Speed get most of the attention. However, there are a number of smaller events throughout the year. Dennis Sullivan is president of the Utah Salt Flats Racing Association (USFRA). He spoke about the racing culture.

USFRA is a 42-year-old volunteer organization. It hosts the World of Speed event in September. It keeps records for all the classes that compete at the flats. It also helps manage the relationship between this unique land and the people who use it in search of ever-faster speeds.

Automakers, like VW, often visit the Salt Flats. They attempt record-breaking runs for publicity purposes. They also test vehicles in the desert's extreme conditions. However, Sullivan believes it's the enthusiasts who are responsible for the culture.

Official events welcome different vehicle classes. The event is designed to accommodate everything from classic hot rods to new electric vehicles. "There's no money. It's a true amateur sport," Sullivan says. "If you do set a record, all you get is your name in a book and some bragging rights."

Speaking of records, Sullivan notes, the USFRA focuses on wheel-driven vehicles. That is like a regular car, regardless of its performance modifications. They generally ignore jet-propulsion vehicles, which he says are more like "airplanes that have not taken off." The record for a wheel-driven vehicle is 492 miles per hour. And two people have achieved speeds exceeding 400 miles per hour. The holy grail, Sullivan says, is 500 miles per hour.

According to Sullivan, an official USFRA event can require a lot of things. This includes a team of up to 40 volunteers for setup, plus starting and timing the races (some are paid small stipends). It requires steel girders to smooth down imperfections in the salt. It requires 1,000 traffic cones. It also needs 25 miles of timing wire and $20,000 a day to cover costs. Some events run up to four days.

As in any motorsport, safety is a concern. Sullivan says the USFRA rule book has some of the strictest safety regulations of any motorsports association. That record-breaking VW Jetta, for example, protected the driver with a roll cage, a racing seat and harness, a fire suppression system and a pair of parachutes to help the car slow down after the run. All of these are typical for vehicles modified for speed purposes.

The Salt Itself
While the Bonneville Salt Flats might seem overwhelming huge in size, the salt itself is a finite resource. In 1985, the flats were designated an Area of Critical Environmental Concern by the Bureau of Land Management. According to Sullivan, records show the salt depth used to be between 11 and 18 inches. And it's now down to just 2 inches in some areas.

In addition to racing events, the Salt Flats are also a destination for commercial and movie shoots, potash mining and hobbies such as hiking, camping, archery and model rocket launches. The USFRA marks the race courses with materials that don't leave a permanent impact on the salt, and they help protect the area by cleaning up after themselves as well as going out occasionally to clean up after others.

Could the snowboarder stop himself in mid-air, even for a moment?

Justin and Oscar each hit a baseball with a bat. The baseballs have the same mass, but the ball Justin hits has a greater acceleration. What might be the reason for the greater acceleration of Justin's baseball?

Which item produces the magnetic field in the electromagnet?

Let's say Laura wants to learn more about six-foot (1.8-meter) tubeworms. She would find the most information by __________.

A.Reading about metals in her science book
B.Looking at a picture of a hydrothermal vent
C.Reading a book about creatures in the ocean
D.Looking at pictures of animals in a nearby zoo

Sample Temperature (ºC) Volume (mL)

;1. 15 . 30

;2. 8 .30

; 3 .22 .30

4 4 30

A student measures the temperature of four samples of water. Which sample has water particles that have the greatest average kinetic energy?


A. 3

B. 1

C. 4

D. 2

pleeaseeee helllp A geologist finds a large rock containing a fern fossil. This kind of fern grew on land in hot, moist climates.

What does this tell the geologist about the area at the time the rock was formed?


The area was covered by an ocean.


The area was muddy and wet.


The area was hot and tropical.


The area was snowy and cold.

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.

PLEASE HELP ASAP I WILL GIVE BRAINIEST

Please help! It has to deal with Newton's 3rd law! 30 points! and if right brainliest!

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

100 POINTS AND BRAINLIEST NO CAP IF YOU WRITE THIS CORRECTLY AND DECENTLY IF YOU HAVE A QUESTION PUT IT IN THE COMMENTS NOT AN ANSWER PLS
You have learned that power is the speed, or rate of doing work. In this report you will learn more about James Watt or horsepower.

Here is your goal for this assignment:

Complete an activity on power


Complete one of these activities:

1. Research the life of James Watt. Report in about fifty words some of the important events in Watt's life leading up to the watt being named in his honor.

2. Conduct a survey of equipment and cars to find out the amount of horsepower of each item you check. You may visit a car dealer, an appliance store, a heavy-equipment dealer. Make a list of the horsepower of at least ten items of equipment. Some suggestions include: comparing two or three different makes of cars or finding the horsepower of a lawn mower, boat, vacuum cleaner, or some heavy equipment for moving dirt. You may find that the power of a washing machine or vacuum cleaner is given in watts instead of horsepower. Make a chart to record your findings, including:

Type of Equipment Surveyed: (Indicate whether it is a car, shovel, vacuum cleaner, etc.)

Amount of Horsepower or Watts: (Record power in horsepower or in watts.)

Which of these is NOT a position in hockey?

a
Goalie
b
Wing
c
Defenseman
d
Shortstop

What happens during crossing over? Meiosis

You mix Kool-aid at home and put it into ice trays. After about 4 hours the Kool-aid has turned into ice cubes. What best describes what happened to the Kool-aid?

A. The liquid has absorbed the cold from the freezer and frozen into ice
B. The liquid has lost heat to the freezer and frozen into ice
C. The liquid has transferred heat back and forth until it froze into ice

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?

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

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?

What two gases in the atmosphere do animals and plants need to breathe and grow?

BRAINLIEST
Now that you have done
some research, write a
hypothesis based on the
relationship between zinnias
and the sun. Write it as an
“If ________, then__________”
statement.

Which best explains parallel forces?

A. left and right forces that can be added together
B. right and upward forces that cancel each other out
C. addition of parallel forces that cannot result in a negative force
D. left and downward forces that cancel each other out

100 POINTS!! A chemical formula is used to represent the compound formed when two or more elements bond. Your parents decide to have a BBQ this weekend, but they need to refill the propane tank before they can start the grill. List each element and how many atoms of each element are present in one molecule of propane C3H8.

Pluto has been reassigned and is now a dwarf planet. Why did scientists think this reassignment was necessary? If you were a scientist at that time, would you be for or against the reassignment of Pluto? What evidence would you give to defend your choice?