Answers
"How can that be ?", you ask.
That's a great question.
The car started out, drove farther and farther from home for the first 4 hours, then drove back home during the 5th hour. It's all right there on the graph.
The total displacement of the car after five hours - 0km.
Displacement -
Displacement is a vector quantity that refers to the object's overall change in position.change in final position from its initial positioncalculating the distance between an object's initial position and its final position.In physics terms, displacement is referred to as the variable s. The official displacement formula is as follows:s = sf – si.
where, s = displacement.
In the given graph there is a change in distance covered with the time that are:
after two hours it reaches 15 km away from the initial pointafter 4 hours car reaches 20 km away from the initial pointAfter 5 hours it returns back to the initial point.Thus, the displacement would be 0 km as the final point and initial point are the same.
Learn more about:
https://brainly.com/question/11934397
Related Questions
Is there a point at which no more sodium and chloride ions will dissolve? How do you know?
Answers
What are the two factors that determine a material's density?
Answers
Two families meet at the park at 10:00am. Each family uses a different way of transportation to get there. The Gonzalez family leaves at 9:00am and drives 90 km on a highway. The Rivera leave at 9:30am and ride the train 30km. What is the average speed for each family’s trip? Which family travels at the faster speed?
Answers
Firstly, we need to make the times and distance equal to compare.
1hr=60mins
Gonz drove 90km in 60mins,so they would drive 45km in 30 mins dividing it by 2.
Because the Rivs had gone 30km in 30mins, Gonz were faster.
For the adverage speed, we should first add the speed of each family in mph , so 90+60, which equals 150 and divide that by 2 because there are 2 speeds so the average speed is 75mph.
P.S English is my second language so tell me if you don't understand something and I will try and explain.
after brainstorming engineers may refine their ideas by making what???
Answers
I hope I helped :)
What is an advantage of being a single-celled organism
Answers
Being a single-celled organism offers the advantage of carrying out all necessary life processes independently, enabling efficient resource management, reproduction, and adaptation. It showcases biological organization within a single cell, allowing for versatility and adaptability in various environments.
Explanation:One significant advantage of being a single-celled organism is the ability to carry out all of life's processes independently, without the need for cooperation or division of labor seen in multicellular organisms. This autonomy allows single-celled organisms to efficiently manage resources, reproduce, and adapt to their environment with a streamlined organizational structure. From the intake of nutrients to reproduction, these organisms perform essential life functions within a single cell, showcasing an impressive level of biological organization and flexibility. Single-celled organisms, such as bacteria and protists, exhibit specialized behaviors despite their simple structure, including directed motility and predation, which enable them to thrive in various environments. Additionally, the absence of specialized cells means that each cell must be proficient in multiple tasks, providing a versatile and adaptive approach to survival.
The Colonial Theory suggests that multicellularity arose from the cooperation among single cells, highlighting the evolutionary advantages of single-celled life forms in pioneering new ecological niches. This evolutionary step underpins the diversity of life we observe today, with multicellular organisms developing complex structures and functions from these humble beginnings. Despite their simplicity, single-celled organisms play a crucial role in the biosphere, serving as foundational elements of ecosystems and driving both ecological and evolutionary processes.
PLZZZZ HELP!!!! What is unusual about organisms in the domain Archaea?
A. They are very large.
B. Their rate of reproduction is very fast.
C. They are complex, multicellular organisms.
D. They live in extreme environmental conditions.
Answers
They can live in the smallest areas that no other life form can live in
Archaea are prokaryotic organisms that are adapted to live in the most extreme of environments where no other organisms have the ability to survive. The group of archaea that are adapted to extreme environments such as geysers, cold, alkaline and acidic conditions are known as extremophiles.
Small college has 2523 students in 1994 and 2891 students in 1996 if the enrollment follows a linear growth pattern how many students should the college have in 2006?
Answers
m = (2891 - 2523)/(2-0) = 184
The slope-intercept form is y = mx + b. Let's substitute (0,2523) to the equation such that
2523 = 184(0)+b
b = 2523
Hence, the equation of the linear graph is y = 184x + 2523. Now, at 2006, x = 2006 - 1994 = 12 years.
y = 184(12) + 2523 = 4,731 students
A force of 20 N acts toward the east. Another force of 27 N acts at the same point toward the west. What is the magnitude and direction of a third force that produces a resultant of 10 N toward the east?
Answers
First list out all the forces and add negative (-ive) signs to each of the 'west' forces like this.
20 East + (-27 West) + ? = 10 East
so it's easy to see that 20 + (-27) = -7
So to get to 10 from -7 just do the sum to get 17.
Since 17 is not negative it must be in the direction of East.
So the answer is:
Magnitude = 17 N
Direction = toward the East
What is a verb phrase
Answers
how does the current model of the atom differ from
j j thomas model
Answers
The current model contains a nucleus with electrons orbiting around it. :)
What happens when aluminum fills its valence shell?
A. Three electrons are lost, creating Al ^ +3
B. Three electrons are gained, creating Al ^ -3
C. Three electrons are gained, creating Al ^ +3
D. Three electrons are lost, creating Al ^ -3
Answers
Answer:
Correct answer is B. Three electrons are gained, creating Al ^ -3
Explanation:
Aluminum in its valence shell has 3 electrons, this shell can have a maximun of 6 electrons. Then, to fill its valence shell, 3 electrons must be gained, and then the valence shell would have 6 electrons and would be complete.
If 3 electrons are gained, then Aluminum, would have a charge of -3, since each electron gained gives negative charge to the atom.
Al^ -3 is a ion of aluminum with charge -3.
Your science teacher gives you three liquids to pour into a jar. After pouring, the liquids layer as seen here. What property of matter prevents the three liquids from mixing together to form a solution?
Answers
b. color
c. density
d. texture
i believe A
The property that prevents the liquids from mixing is density. Liquids have a set volume but don't have a fixed shape, allowing them to layer according to their density when combined in a container. The viscosity of the liquids can also affect their ability to mix.
The property of matter that prevents the three liquids from mixing together to form a solution is the density of each liquid. Matters most commonly exist as a solid, liquid, or gas; these are the three common phases of matter. Solids have a definite shape and volume, while liquids have a definite volume but not a definite shape, and take the shape of their container. Gases neither have a definite shape nor a definite volume. When liquids of different densities are combined, they layer according to their densities, with the least dense liquid at the top and the most dense at the bottom. This separation occurs because denser liquids are heavier per unit of volume and will not mix readily with lighter (less dense) liquids unless a force is applied to shake or stir them into a suspension or solution. It is also important to understand that the phases of matter and what constitutes a fluid, as liquids and gases, yield to shearing forces unlike solids. The capacity for a liquid to flow easily or quickly is determined by its viscosity. Because our three liquids have not mixed to form a homogeneous mixture, we can conclude that their different densities and potentially their varying viscosities have led to the layering effect observed.
If we use _______ to build the roof of the house, then the temperature inside the house will remain cooler.
Wood,Clay Brick,Iron,Aluminum,Copper,
Nickel
Answers
hope this helped!
Answer:
Wood and clay brick.
Explanation:
If we use wood and clay brick to build the roof of the house the temperature inside the house will remain cooler. As we know wood and clay are non conductor of heat so they not transfer sun's heat inside the room and room remains cooler. On the other hand aluminium, copper and nickel are metals and are good conductor of heat as well they transfer environment's heat inside the room.
A cluster of galaxies containing very few galaxies is known as
Answers
Answer is a Poor Cluster.
Answer:
A group of galaxies forms a cluster.There are two types of clusters of galaxies.
Rich clusterPoor clusterA rich cluster contains more than thousand galaxies.
A poor cluster contains less than thousand galaxies. Milky way is a part of poor cluster- the local group which has more than fifty galaxies.
Thus, a cluster of galaxies containing very few galaxies is known as poor galaxy.
What Is the mass of 7.50 mol of uranium
Answers
Having looked it up, the mol.mass of U-238 is 238.03g/mol.
7.50 moles x 238.03g/mol. = 1,785.23g/mol
Final answer:
The mass of 7.50 moles of uranium is 1785.375 g, calculated by multiplying the molar mass of uranium (238.05 g/mol) by the number of moles (7.50).
Explanation:
The question seeks to find the mass of 7.50 moles of uranium. Considering the molar mass of uranium, specifically isotope U-238 which is commonly referred to in problems regarding uranium mass calculations, is 238.05 g/mol. To find the total mass of 7.50 moles of uranium, we use the formula:
Mass = molar mass × number of moles
Thus, the mass of 7.50 mol of uranium is:
238.05 g/mol × 7.50 mol = 1785.375 g
This calculation plainly demonstrates how the molar mass of a substance can be utilized to find the mass of a given number of moles of that substance, an essential concept in chemistry, especially in the field of nuclear chemistry where isotopes such as uranium are frequently discussed.
Can someone explain subshell/electron configuration to me?
Answers
Each one has a certain number of shells, in different shapes, that can hold two electrons.
S- Has one shell, shaped like a circle, so in total can hold 2 electrons.
P- has three shells, shaped like an infinity symbol, so in total can hold 6 electrons
D- has five shells, shaped, err, dunno how to describe it, can hold 10 electrons.
F- has 7 shells, um, even more dunno how to describe it, can hold 14 electrons
There doesn't only have to be one of each shell though. There can be two S levels, and one P level, and no D or F levels.
(search up electron configuration it'll have a chart of the order in which these come in)
Each layer will be stated as Number layer electron number.
For example, the first layer of electron level would be 1, because it's the first layer, S, because that's what the first layer is, and if it was completely filled, 2.
So, 1s2.
If you were going to add another level, which would also be a S level, but it only has one electron, you would say:
2s1,
because it's the second s level and has one electron in it.
And to put the two together, just say:
1s2, 2s1
NOTE: if you were going to add another level, it would be a P level, but it wouldn't be 3p something, it would be 1p something because it is the first electron level.
Another note: if you have three layers of electrons, or just six electrons, you would just say 1p6. (because the P orbital can hold 6 electrons)
Hope this helped!
an atom's mass number equals the number of
Answers
Answer:
2
Explanation:
A sunflower turns its head toward sunlight. What triggers this behavior in a sunflower?
Answers
Answer:
phototropism
I hope this helps
7. The outermost electrons of the element vanadium (atomic #23) are in which energy level of the atom? How do you know?
Answers
When writing an electron configuration in orbital form, you put the last noble gas configuration in front, for vanadium it's (Ar). The s-block is filled with its capacity of 2 electrons since vanadium is a regular transition metal. The first d subshell, 4d, puts electrons into the 3rd shell not the outer shell. So it has 2 valence electrons. The exceptions to this rule are chromium, molybdenum, copper, silver and gold, which put one of the s electrons into the d shell.
two examples of ways that physicists model the physical world
Answers
Answering the question, three examples of ways that physicists model the physical world include:
DiagramsEquations Computer simulationsComputer simulations refer to the reproduction of behavior of a system with the use of a computer to simulate the results of a mathematical model that is linked with the system.
Further ExplanationComputer simulations are a tool that is very useful for mathematical modeling in various natural systems in physics.
Physicists write the rule of our universe using equations. Equations are an aspect of one of the models used by physicists to explain a particular situation.
Physicists use a diagram to convey information. It is a symbolic representation of information with the use of visualization techniques. Diagram provides other means for people to better understand information and process its importance.
Physics predictions about the physical world mainly depend on numerical stimulation, mathematics and empirical observations and Physicists models the physical world based on invariances and laws which are built on mathematical models.
The purpose of physics is to explain or describe everything around us. It described virtually everything around us accurately by deploring the law of physics.
However, physics is considered a natural science because it is based on mathematical analysis which is geared towards findings qualitative physical law for the physical world.
LEARN MORE:
examples of ways that physicists model the physical world https://brainly.com/question/10869755KEYWORDS:
physicistsphysicsmodelsphysical worldcomputer simulationsdiagramsequationsWe have that
Two examples of ways that physicists model the physical world is Through
Equations FormulationsDiagrams
From the question we are told that
Two examples of ways that physicists model the physical world
Generally
We First define a Physicists
A physicists is a Scientist,A Physicists is a Scientists that deals meanly on the Discipline of PhysicsThe Discipline of Physics deal with the interaction between matter and energy and Understanding the working principle of Nature
Therefore
Two examples of ways that physicists model the physical world is Through
Equations FormulationsDiagramsFor more information on this visit
https://brainly.com/question/23379286?referrer=searchResults
Describes what happens to the amplitude of a wave as it moves away from its source and why this occurs.
Answers
Final answer:
The amplitude of a wave decreases as it moves away from its source because the wave's energy is distributed over a greater area. The amplitude's reduction is exponential, with a constant fractional decrease over each unit of distance, but the speed of the wave remains constant.
Explanation:
As a wave moves away from its source, its amplitude typically decreases. This occurs because the energy of the wave is spread over a larger area as it propagates. It is important to note that the amplitude of a wave does not depend on its frequency or speed, but rather on the energy it carries. In the case of a spherical wave, the amplitude decreases because the energy must be shared among more particles in the outer, larger shells of the wavefront, leading to each particle having less energy and thus reducing the amplitude.
Furthermore, the reduction in the amplitude of a wave that undergoes absorption is exponential according to the principle of superposition. This means that for each unit of distance the wave travels, the amplitude decreases by a constant fraction. However, this reduction in energy does not imply that the wave slows down; the speed of the wave remains constant unless the medium through which it is traveling changes.
True or false scientific inquiry incorporates many scientific methods
Answers
The correct answer for the given statement above would be option
A. TRUE.
Explanation:
Scientific inquiry is a cooperative and coordinated struggle to search out, describe, describe and predict natural phenomena. Scientific analysis progresses within a continuous process of examination, data collection, interpretation, and interpretation.
Your friend Amanda suffers from a condition that reduces her blood's ability to carry oxygen.which of the following is the name of the condition?
Answers
IMPORTANT QUIZ!!!!!!!
the atomic number of an atom is the number of______.
A.protons and neutrons
B.protons
C.neutrons
D.electrons and neutrons
Answers
psychoanalytic theory originated with
Answers
Psychoanalytic theory originated with Sigmund Freud and is a key concept in psychology.
Explanation:The psychoanalytic theory originated with Sigmund Freud, an Austrian neurologist. Freud developed this theory in the late 19th and early 20th centuries and it became one of the most influential and widely known theories of psychology. According to psychoanalytic theory, behavior is driven by unconscious processes and childhood experiences play a significant role in shaping adult personality and behavior.
Learn more about Psychoanalytic theory here:https://brainly.com/question/34708779
#SPJ6
Which of the following states of matter has no definite shape but does have a fix volume
Answers
a solid
b liquid
c gas
d plasma
B: Liquid is the correct answer
A truck driver travels 55 km in 1 hour he then drives a speed of 35 km/h for two hours next he drives 175 km in three hours. what was his average speed?
Answers
= 55
second and third = 35 per hour.
= 70
fourth, fifth and sixth = 175 per hour.
= 525
average speed = (55 + 70 + 525) / 6
= 650 / 6
= 108.33 km per hour
The average speed of a truck driver is 50 km/hr.
Given:
A truck driver travels 55 km in 1 hour he then drives at a speed of 35 km/h for two hours next he drives 175 km in three hours
To find:
The average speed of a truck driver.
Solution:
Distance traveled by a truck driver in 1 hour = 55 km
Speed of a truck driver after in next 2 hours =35 km/hr
Distance traveled by a truck driver in these 2 hours = [tex]35 km/hr \times 2= 70 km[/tex]
Distance traveled by a truck driver in last 3 hours = 175 km
Total distance traveled by truck driver :
[tex]= 55 km + 70 km + 175 km = 300 km[/tex]
Total time taken by the truck:
[tex]=1 hr + 2 hr + 3 hr = 6 hr[/tex]
The average speed of the truck driver:
[tex]=\frac{\text{Total distace covered}}{\text{Total time taken}}\\\\=\frac{300 km}{6 hr}=50 km/hr[/tex]
The average speed of a truck driver is 50 km/hr.
Learn more about average speed here:
brainly.com/question/8819317?referrer=searchResults
How does physics applied to being a teacher
Answers
please rate as brianliest!! thanks!
Suppose you balance a 1.6-kg ball on the tip of your finger, which has an area of 1.1 cm2 .whats the pressure of your finger
Answers
P=F/A.
We are given, a mass of the ball equal to
m=1.6kg and an Area of 1.1cm2=1.1([tex] 1x10^{4} [/tex])m2
To calculate for the force exerted by the finger to the ball, it is simply equal to the weight of the ball. Mathematically,
F=W
Weight of the ball can be calculated as,
W= ma
where m=mass of the object and a is the acceleration due to gravity (9.8m/s).
Then, the Weight of the ball which is equalt to the force exerted by the finger,
W=F=(1.6 kg x 9.81)=15.696 N
Then Pressure would be,
P=(15.696N/1.1(.1([tex] 1x10^{4} [/tex])m2))
P=142690.91 N/m2=142690.91 Pa
The moon's phases are caused by (4 points)
A.the alignment of the planets
B.the alignment of the Earth, moon, and sun
C.eclipses of the sun
D.planets moving across the face of the moon
Answers
The answer is B. The alignment of the moon, earth, and sun.