Answer:
A. absorb heat energy and move farther apart
Explanation:
The answer is A since when a ice cube takes in heat, it changes form and melts down to a liquid : water.
The molecules in water are farther apart since they are moving around alot but can be contained in a container.
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
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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Arrange the images in order to show how lake-effect snow occurs.
Illustration reads water vapor condenses in rising air to form clouds, represented with 3 triangular shaped clouds (top), five upward arrows over trough of water (32 degrees Fahrenheit) in the middle of landmass (0 degrees Fahrenheit) at the bottom.
A two rectangular boxes, the right side box show how lake effect snow occurs left arrow Lake Snow falls over the lake and downwind shore. The water (32 degrees F) and landmass (0 degrees F), and titled Sequence. The left side box titled Tiles.
A two rectangular boxes, the right side box show how lake effect snow occurs left arrow Cold Arctic air moves over warm lake waters. The landmass (0 degrees F) and water (32 degrees F), and titled Sequence. The left side box titled Tiles.
A two rectangle box, the right side box show how lake effect snow occurs left arrow Lake surface adds heat and water vapor to cold air mass. The landmass (0 degrees F) water (32 degrees F), and titled Sequence. The left side box titled Tiles.
↓
↓
↓
Answer:At a most of 18 levels, it still gets bloodless, however at at the least 18 ranges, it's miles a heat weather where you may spend even one long sleeve without outerwear.
What is Precipitation?
Precipitation falls to the floor as snow and rain. It sooner or later evaporates and rises back into the environment as a gasoline. In clouds, it turns back right into a liquid or stable water.
It falls to Earth once more. humans rely on precipitation for sparkling water to drink, shower, and irrigate plants for food.
Therefore, At a most of 18 levels, it still gets bloodless, however at at the least 18 ranges, it's miles a heat weather where you may spend even one long sleeve without outerwear.
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Explanation:
hope this helps
Please someone help with all of these 3
Answer: Because they all share the same square root
Explanation:
h = 6.63 × 10−34 J.s = 4.136 × 10-15 eV.s
Answer:
A=12 B=36 C=1 D=36
Explanation:
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?
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:
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:
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
Choose a household appliance or any other appliance that works on the basis of electric current and explain how it works. Mention the effects of the electric current that you encounter in its operation.
Answer:
One household appliance that works on the basis of electric current is a washing machine. It works by first drawing in water from the water supply, and then pumping it into the drum where the clothes are added. The washing machine then agitates the clothes with a rotating inner drum, which is powered by an electric motor. The motor is powered by electric current, which is supplied by the electrical outlet. As the drum rotates, the electric current causes the motor to turn, which in turn agitates the clothes. The effects of the electric current are seen in the form of heat generated by the motor, and a buzzing noise during operation.
(a) State and explain which of the arrangements would have the greater extension of spring(s). (b) Explain if there are any changes observed in the extension of the springs if the same set-up is done on the moon.
Answer:
arrangement 2
Explanation:
arrangement 1's spring would broke idek
Answer:
2................................
Explanation:
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.
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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A gamma knife is most likely to produce electromagnetic waves at which of
these frequencies?
O A. 1016 waves per second
O B. 1013
B. 1013 waves per second
C. 1020 waves per second
O D. 1011 waves per second
Answer:
The correct option is C
C) 1020 waves per second
Explanation:
The frequencies and waveslengths of all the electromagnetic waves can easily be found by looking at the diagram of the selectromagnetic spectrum. If we notice the electromagnetic spectrum, we come to know that gamma rays have the highest frequency, about 10²⁰ Hz and the shortest wavelengths.
Therefore, a gamma knife will produces rays of about 10²⁰ waves per seconds
Answer:
10^20 waves per second
Explanation:
a p e x :))
What device was invented because of Faraday’s leap?
What is the most important part when passing a volleyball?
Answer: ur form (how u hit it)
Explanation: if it’s not what ur looking for lmk i’ll try to answer differently
What are the laws of motion?
Why do forces occur in pairs?
What is Newton's third law of motion? What does it mean?
How does mass affect acceleration?
How do you diagram forces and Newton's third law?
How do you calculate acceleration?
What are actions and reactions?
What are action-reaction pairs?
What does acceleration depend on?
How do you solve problems with Newton's laws?
Answer: Newton's First Law of Motion states that in order for the motion of an object to change, a force must act upon it. ...
Newton's Second Law of Motion defines the relationship between acceleration, force, and mass.
Newton's Third Law of Motion states that any time a force acts from one object to another, there is an equal force acting back on the original object.
Explanation: A force is always part of a mutual action that involves another force. To calculate acceleration is F=ma/ acceleration depends on Velocity.
Answer:
Newton's First Law of Motion states that in order for the motion of an object to change, a force must act upon it.
Newton's Second Law of Motion defines the relationship between acceleration, force, and mass.
Newton's Third Law of Motion states that any time a force acts from one object to another, there is an equal force acting back on the original object.
Help me pls, I'm begging.
Do nutrients cause seagrass to grow more in this area? If so, are both nitrogen and phosphorus equally important? Explain your answer.
Seagrasses are a vital part of the marine ecosystem..
Seagrasses are submerged flowering plants found in shallow marine waters, such as bays and lagoons and along the continental shelf in the Gulf of Mexico. A vital part of the marine ecosystem due to their productivity level, seagrasses provide food, habitat, and nursery areas for numerous vertebrate and invertebrate species. The vast biodiversity and sensitivity to changes in water quality inherent in seagrass communities makes seagrasses an important species to help determine the overall health of coastal ecosystems. Seagrasses perform numerous functions:
Stabilizing the sea bottom
Providing food and habitat for other marine organisms
Maintaining water quality
Supporting local economies
Between 2018 and 2019, describe the change in the % of obesity ratings using the maps provided. Note three major changes. (3-4 complete sentences).
Answer:
fighting obesity and weight problems in kids remains a serious health concern. More than one-third of American children and teens are overweight or obese, according to the Centers for Disease Control and Prevention. Children with obesity are at higher risk for having other chronic health conditions and diseases that impact physical health. Children with obesity are bullied and teased more than their normal-weight peers and are more likely to suffer from social isolation, depression, and low self-esteem. 2
Explanation:
fighting obesity and weight problems in kids remains a serious health concern. More than one-third of American children and teens are overweight or obese, according to the Centers for Disease Control and Prevention. Children with obesity are at higher risk for having other chronic health conditions and diseases that impact physical health. Children with obesity are bullied and teased more than their normal-weight peers and are more likely to suffer from social isolation, depression, and low self-esteem. 2
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: .
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 ??
Complete this sentence. If the mass of object A is __________ than object B, then the weight of object A will be _______________ the weight of object B.
greater, heavier than
less, heavier than
greater, the same as
less, the same as
Answer:
Complete this sentence. If the mass of object A is greater than object B, then the weight of object A will be heavier the weight of object B.
Explanation:
If the mass of Object A is more/greater than object B then it would be "heavier"
Can u please help me .
Answer:
34 A
35 13 A
Explanation:
34 The variation of the voltage across the resistor with time in an alternating current circuit is given by the relation;
\(\Delta V_R \cdot sin(\omega \cdot t)\)
Where:
ω = Angular speed = 2πf
t = time
ω·t = Constant
Therefore, the voltage is the sine wave for which is at 0 we have sin(0) = 0 and varies between 1 and -1
The correct option is A
35 The required fuse for an appliance is one that will be able to function at the current rating and trip in the event of an over-current
Given that the current rating of the electric heater = 10 A
The current rating of the cable = 15 A
We select a fuse that will be between the rating of the attached cable and the power rating of the electric heater to serve as the protective device for the heater, therefore the most appropriate fuse = 13 A such that;
10 A < 13 A < 15 A
what is evaporation will give brainliest
Answer:
Evaporation is the process by which water changes from a liquid to a gas or vapor.
A student jogs for a mile when their heartbeat starts racing and the student feels too fatigued to keep jogging. The student stopped to rest in response to the body's —
A. external stimulus of fatigue.
B. external stimulus of traveling a mile.
C. internal stimulus of sweating.
D. internal stimulus of a increased heart rate.
The student stopped to rest in response to the body's internal stimulus of a increased heart rate. That is option D.
What is heart rate?The heart rate is defined as the number of times the heart beats per minute. Depending on the state of the body it can increase or decrease per minute time
During exercise, the heart rate increases during exercise because the body need more oxygen which can be gotten by increased cardiac output.
Therefore, The student stopped to rest in response to the body's internal stimulus of a increased heart rate.
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Please I need help!!
Answer:
mass and speed determine object's kinetic energy
potential energy is the energy of position
the more mass and height the more potential energy it has
sorry not sure about the others
Answer:
This is for the person before me to get the brainiest
Explanation:
Good Luck!!
Have a great day!!
(Please help!) The diagram shows a roller-coaster track. Assume that the system is closed. At point B, the roller-coaster car is at the highest point of the ride. Which chart best shows the relative amounts of potential and kinetic energy of a roller-coaster car that has stopped briefly at point B before heading down the other side of the hill?
is Pluto a planet or not?
Answer:
Maybe, if not a option i think not. I`m pretty sure it used to be there and isnt anymore
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- "During an investigation a scientist heated 27 g of mercuric oxide till it decomposed to leave a dry product. The total mass of the product formed was 25 g. Does the law of conservation of mass hold true in this case? Use complete sentences to justify your answer based on numerical calculations." WHATS THE ANSWER.
Answer:
, if we see we are considering this initial mass of this in this particular case, the initial mass of substantiated- or we can say, mercury oxide heated, it is, we can say, 27 grains. So this is the initial mass which is heated here. It is like this and what we can say we can consider this consent, passion of mass, so consummation of mass. We are looking here, the log, the conservation of the mass, so conservation of mass state at mass. It is always converted, but if it's not the case, we can also modify it it through mass and energy. They are combined converted or we can say, mass energy equivalence here so mass. It is confirmed in this case, so we can say, but here it is said that initially mass was 27 gram and finally mass was 25 gram. So but as we know, mass it is conserved mass, it is always conserved, so if the mass it is conserved, we should say this thing that the lost in the 2 gram weight must be due to the evaporation or we can say formation of the gases which Have been escaped, that is why it cannot be recorded, so we can say 2 gramos in the mass to the escape of the gas, or we can say evaporation. So.
What is the Eiffel Tower made of?
Answer: The Eiffel Tower is primarily made of iron. Gustave Eiffel, the French engineer who designed and oversaw the construction of the tower, used wrought iron to build its frame. In total, the tower contains about 18,000 individual iron pieces and weighs over 10,000 tons. The iron framework is held together by 2.5 million rivets. The tower's base is made of concrete, and the top portion of the tower is covered in bronze plates.
Explanation:
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.
A driver is driving a 6371 kg lorry. After spotting a hazard, the driver applies the brakes. The lorry decelerates uniformly and comes to a stop 60 m after the brakes are applied. Estimate the braking force needed to stop the lorry.
Answer:
The estimated braking force needed to stop the lorry is zero, based on the given information and calculations. However, it's important to note that this result is likely not accurate, as some force is required to stop a moving object. It's possible that additional information or calculations are needed to obtain a more realistic estimate of the braking force.
Explanation:
To estimate the braking force needed to stop the lorry, we can use Newton's second law of motion, which states that force (F) is equal to mass (m) multiplied by acceleration (a).
In this case, the lorry decelerates uniformly, so the acceleration is constant. The initial velocity is assumed to be zero since the lorry comes to a stop. The final velocity is also zero. Therefore, we can use the equation:
Final velocity squared (vf^2) = Initial velocity squared (vi^2) + 2 * acceleration (a) * distance (d)
Since vi = 0 and vf = 0, the equation simplifies to:
0 = 0 + 2 * a * d
Solving for acceleration (a), we have:
2 * a * d = 0
a = 0
Since the acceleration is zero, it means that the braking force needed to stop the lorry is also zero. This is likely not an accurate result as some force is required to stop the lorry. It's possible that additional information or calculations are needed to accurately estimate the braking force.
The braking force required to stop a 6371 kg lorry after spotting a hazard and applying the brakes is what the question is asking for. The lorry decelerates uniformly and comes to a stop 60 meters after the brakes are applied.
The following steps will guide you on how to calculate the braking force:
Step 1: Determine the mass of the lorry which is 6371 kg. This will be denoted as m.
Step 2: Determine the distance travelled by the lorry, which is 60 m.
Step 3: Determine the time taken by the lorry to stop. This can be done by using the formula for uniform deceleration, which is a = (v-u)/t where v is the final velocity, u is the initial velocity and a is the uniform deceleration. Since the lorry comes to a stop, its final velocity is zero and its initial velocity is unknown.
However, we can assume that the lorry was initially travelling at a constant speed before spotting the hazard. Therefore, we can assume that the initial velocity was equal to the average velocity of the lorry before the brakes were applied.
This can be calculated using the formula v = d/t where d is the distance travelled and t is the time taken. The average velocity can therefore be calculated as follows: v = d/t = 60 m/t
Step 4: Rearrange the formula for uniform deceleration, a = (v-u)/t, to find u which is the initial velocity. Since the lorry comes to a stop, we know that v = 0.
Therefore: u = v - at where a is the uniform deceleration and t is the time taken to stop which is also equal to the time taken for the lorry to travel the distance of 60 meters. Substituting for v, we get: u = - at
Step 5: Calculate the acceleration of the lorry using the formula a = (v-u)/t. Since the final velocity is zero, we get: a = -u/t = -(-at)/t = a The acceleration is negative since the lorry is decelerating.
Step 6: Calculate the braking force using the formula F = ma where F is the braking force and m is the mass of the lorry. Therefore: F = ma = (-ma) since a is negative = (-6371 kg) (a) Therefore, the braking force required to stop the lorry is -6371a N where a is the uniform deceleration calculated in Step 5.
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What type of circuit is this in the picture? (Lesson 4.07)
A: Parallel
B: Open
C: Ac
D: Series
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:
ill make you brainliest! The Earth is shown as a circle. Equator is shown and labeled at 0 degrees. 30 degrees north and south latitudes are shown and labeled. 60 degrees north and south latitudes are shown and labeled. Curved arrows are shown from the top and bottom ends of the circle towards 60 degrees north and south latitudes.
What best describes these winds?
Trade winds blowing in a curved manner due to rotation of Earth
Polar easterlies blowing in a curved manner due to Coriolis Effect
Polar westerlies that curve due to air above poles being relatively cooler
Jet streams that curve due to air above equator being relatively warmer
Answer:
Polar easterlies caused due to rising, warm air above the poles
Explanation:
Answer:
Polar easterlies caused due to rising, warm air above the poles.
Explanation: