Answer:
A). The first law describes how thermal energy is conserved but not the direction it moves.
Explanation:
Thermodynamics is demonstrated as the branch of physics that deals with the associations or relationships between heat and other energy forms like mechanical, chemical, and electrical).
As per the question, the first law discusses that heat is a kind or form of energy and thus, processes associated with thermodynamics are subject to energy conservation principle. Therefore, heat energy can neither be destroyed nor created but rather transferred to one place to another and converted to and from other energy forms.
Thus, the first law of thermodynamics is distinct from the second law as 'the former describes how thermal energy can be conserved to and from other forms of energy and not the direction in which it moves' while the second law focuses on entropy. Therefore, option A is the correct answer.
The first law of thermodynamics describes the conservation of heat energy but not the direction it moves. Option A correct.
First law of Thermodynamics:
It states that the energy cannot be produced or destroyed it just change from one form to another.
Heat is a form of energy and thus, follow the energy conservation principle. So, heat can be change into mechanical energy.
The second law describe the direction of movement of heat.
Therefore, option A is the correct answer.
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How has the car affected the way people live? Give three ways
i need helpppppp asap
Goals can be big or small? Question 1 options: True False
Answer:
Probably big
Explanation:
lol
what is the answer i need answers now
Answer:
listening ,communication ,resolution
Explanation:
Which layer of the atmosphere do most planes fly in?
A. Troposphere B. Stratosphere C. Mesosphere D. Thermosphere E. Exosphere
Answer:
It is the Stratosphere.
Explanation:
Brainliest?
Look at the diagram below.
Ray 1 from the Sun moves through air and falls on the surface of a lake. Ray 2 is a ray which travels from the surface of the lake at the point Ray 1 strikes the lake, and moves towards air. Ray 1 and Ray 2 make the same angle with the surface of the lake. Ray 1 bends towards the vertical when it enters the lake as Ray 3
(Ik this isn't physic's but its the closest i could find)
Which statement is correct about Ray 1?
A part of it is reflected as Ray 2.
A part of it is reflected as Ray 3.
Some of it is absorbed as Ray 2.
Some of it is absorbed as Ray 3.
Answer:
Some of it is absorbed as Ray 2.
Explanation:
hope this helps!
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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Imagine your teacher asks you to design an experiment where you test the effect of temperature on the growth of a plant. You have 5 plants that you plant and place in different temperatures around the room. What would your variables be and what would your constants be.
pls do it dont do it if u dont know
dont do it for the points
Answer:
the variable would be the temperatuer. and the water u give it would be constant.
Explanation:
the same amount of water go's to all of the plant's . and u cange the variable and your changing the temp .
What does your body use to replace tissues and organs?
Answer:
the body produces stem cells
Explanation:
Why is it important for an engineer who is designing a new home-cooling/heating system to have knowledge about the transfer of heat?
Answer:
In the explanation :)
Explanation:
Heat is a concept that is important to understand in various engineering fields. It is particularly relevant for civil, mechanical and chemical engineers because heat transfer plays a key role in material selection, machinery efficiency and reaction kinetics, respectively.
Please awnser this will mark brainliest
1. Do you think robots and computers can perform jobs as well as humans? Why or why not?
2. What risks are associated with machines performing more everyday jobs?
3. Will robots ever be able to reason and adapt as well as human brains? Explain your answer
Answer:
yes
Explanation:
robots will be more precise and faster than a human. although glitches in the machinery are a problem especially in more local areas. robots will have a hard time adapting to new environments because they don't have brains or any human emotion.
Answer:
1. Yes
2. Check down below
3. No
Explanation:
Hello, allow me to explain what I mean:
1. Yes, Robots can perform some jobs even better than humans can. It depends on what job.
For example, making items in a factory is easier for machines than it is for humans.
The opposite is also true, humans can adapt to certain situations.
2. Some risks may be that:
Machinery is coded wrong, this means that it will mess up in the work it is givenMachines need to be checked and that takes lots of timeMachines were made by humans, Humans are imperfect creatures, therefore machines are also imperfect.3. No, Humans are creatures so complex that we don't even understand everything about ourselves, so no Robots will most likely never be able to adapt exactly like humans.
They might be able to adapt to changes but never adapt like the human brain... It's much too complex.
Hope I could help!
-Nova
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
If some planets have little to no gravity, such as the moon - then how come space dust doesn't just flow right off - or why comets don't just drift right off? (Even though it doesn't have an atmosphere.)
Answer:
There is gravity in space – lots of it. Because gravity is everywhere in space, objects in space are always falling: towards the earth, towards the sun, and towards the galactic center. There are two reasons that objects seem to be floating without gravity in space when they are really falling.
First, space is very large and relatively empty by earth standards. Because space is so large, it takes you from hours to years of falling through space until you actually hit the surface of a planet (assuming you have aimed properly so that you actually do hit), instead of the seconds it takes jumping off a bridge.
The second reason that gravity is not so obvious in space is because objects tend to orbit planets instead of hitting them.
Explanation: hope that helps :)
Answer:
Comets Just kinda do their own thing- I beleive that Comets are usually in orbit Because of the sun-As for space dust- There is no wind or anything in space-its kinda like time stands still-Unless a black hole vibe checks Something-
Calculate the density of the football. Use the formula D = m/V
where D is the density, m is the mass, and V is the volume.
Record your calculations in Table B of your Student Guide.
What is the density of the football while it is deflated? ______ g/cm3
Answer:
0.84
Explanation:
PLS HELP ME I WILL GIVE YOU BRAINLIEST
1.What are Tectonic Plates?
2.Explain the Role of each of Earth's Layers involved with the movement of Tectonic Plates...
3.What is Pangaea?
4.What natural processes do Tectonic Plate movements cause?
5.Explain the "Ring of Fire"
PLS USE YOUR OWN WORDS
Why DID THE CHICKEN CROSS THE ROAD?
-don't say "to get to the other side"
This is to say the most sense and creative answer for my class"Physic Jokes"
Answer:The chicken crossed the road because it put one foot in front of the other and took a sufficient number of steps to traverse a distance greater than or equal to the road’s width. Note that the reason is not because the earth is the center of the universe.
Explanation:
If two forces act on an object in the same direction, the net
force is equal to the
of the two forces.
Answer:
yes, the net force is equally two forces sorry I am just try this question about
Explanation:
l don't knowAnswer:
sum
Explanation:
If two forces act on an object in the same direction, the net force is equal to the sum of the two forces.
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:
How do atoms form a new substance? by gaining electrons from each other by losing electrons by losing neutrons to each other by sharing electrons with each other
(SCIENCE 8TH GRADE MIDDLE SCHOOL)
Answer:
A produces new substances by changing the way in which atoms are arranged. In a chemical reaction, bonds between atoms are broken and new bonds form between different atoms. This breaking and forming of bonds takes place when particles of the original materials collide with one another.
Answer:
When atoms combine to form a new substance, they are forming chemical bonds that bind them together. It is these bonds that define what is formed. ... A molecule is formed when two or more atoms join together chemically. If atoms combine that are of two or more different elements, we call that a compound
Explanation:
What unit do you measure time in to determine the speed of an object?
Celsius
Grams
Kilometers
Seconds
Answer:
Seconds
Explanation:
Seconds are used most in physics, biology and chemistry to either determine the speed of ano object or in this case for biology and chemistry used to measure rate of reaction
PLZ ANSWER QUICKLY
Janice has just measured the density of an object. Which value is possible? (Density: D = )
A.–1 g/cm3
B.4 m/s
C.–3 m/s
D.6 g/cm3
What is one way that an electric field is different from a magnetic field?
Answer:
The one of the major difference between the magnetic and electric field is that the electric field induces around the static charge particle which is either negative or positive, whereas the magnetic field produces around the poles (i.e., the north and south pole) of the magnet
Explanation:
Difference Between Electric Field And Magnetic Field. Magnetic field is an exerted area around the magnetic force. It is obtained by moving electric charges. The direction of the magnetic field is indicated by lines. While the electric fields are generated around the particles which obtains electric charge.
Explanation:
hope this helps
The diagram shows the moon and Earth in space.
Which is the best label for the dotted-line arrow?
Group of answer choices
A- moon’s attraction to the Sun
B- force of Earth’s gravity
C- orbit of the moon around Earth
D- moon’s motion without gravity
Answer:
moon's motion without gravity
As you know bone marrow makes red blood cells, white blood cells, and platelets and as you grow it begins to store fat. What do you think a bone marrow transplant will allow the recipient to do?
Answer: A bone marrow transplant can allow the recipient to produce healthy blood cells if their own bone marrow is damaged or not functioning properly.
box is pulled to the right with a force of 65 N at an angle of 58 degrees to the horizontal. The surface is frictionless. The free body diagram is shown. A free body diagram with 3 force vectors. The first vector is pointing north, labeled F Subscript N Baseline, the second vector is pointing south labeled F Subscript g Baseline = 30 N, and the third pointing 58 degrees north of east labeled F Subscript g Baseline = 65 N. What is the net force in the x-direction? 30 N 34 N 55 N 65 N
34N is the correct answer :)
Answer:
34N
Explanation:
A book on a table presses downward with a force equal to the upward force exerted by the table. This is an example of Newton's ___ law of motion.
Answer: Newton's 3rd law of motion.
Explanation: Because the book is pressing with an equal as the table it is the 3r law. Newton's 3rd law of motion states that for every action there is an equal and opposite reaction.
A book on a table presses downward with a force equal to the upward force exerted by the table. This is an example of Newton's third law of motion.
Newton's 3rd law states for every action, there is an equal and opposite reaction.
Give three examples of properties of elements
Answer: Atomic number, Atomic Mass, Ionic radius
Explanation:
The three examples of properties of elements are Atomic Number, Melting Point, and Electronegativity are the properties of the element.
Atomic Number: The atomic number of an element is the number of protons found in the nucleus of an atom of that element. Each element has a unique atomic number.
Melting Point: The melting point of an element is the temperature at which it transitions from a solid state to a liquid state. Different elements have different melting points, which can vary widely.
Electronegativity: Electronegativity is a measure of an element's ability to attract electrons toward itself in a chemical bond. It is an important property in determining the nature of chemical bonding and the reactivity of elements. Elements with high electronegativity tend to attract electrons strongly.
Other properties include atomic mass, density, boiling point, reactivity, and many more, which contribute to the diverse behavior and characteristics of elements in the periodic table.
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What is the equation for the mechanical advantage of a lever?
MA = length of effort arm / length of resistance arm
MA = length of resistance arm/length of the effort arm
MA = length of effort arm + length of resistance arm
MA = length of effort arm * length of resistance arm
I think it is the second one, is that correct? HELP!
Answer:
MA = length of resistance arm/length of the effort arm
MA = length of resistance arm/length of the effort arm
I will give anyone who answers this fast and correctly a brainliest on this and go to your account and give 5 stars/thanks on all of your answers .
To investigate absorption, Hector cuts two rectangles from five different-colored sheets of construction paper. He then staples three sides of each pair of rectangles to make a pocket and inserts a thermometer into each.
He takes the thermometers in the construction paper pockets outside, where it is clear and sunny. The initial temperature of each thermometer is 22°C. The image shows the thermometers after being outside for 15 minutes.
A thermometer in black paper reads 38 degrees Celsius, a thermometer in white paper reads 24 degrees Celsius, a thermometer in green paper reads 29 degrees Celsius, a thermometer in red paper reads 31 degrees Celsius, and a thermometer in blue paper reads 33 degrees Celsius.
Complete Hector's table by recording the final temperature and calculating the temperature change for each thermometer.
Answer:I will give it to another person
Explanation:because they are good to me
30 PTS (pls be hurry and decent and correct im trying to finish all my stuff rn)
Explanation:
1. The reflected light produces a mirror image.
2.Black objects absorb all colours so no light is reflected.
3.Blue + Yellow the color green.
5.Red, green, and blue are often defined as the primary colors of light: they can be combined in different proportions to make almost all other colors.
6.To bend or turn back; be reflected.
7.Chlorophyll is a pigment that gives plants their green color.
8.When the red and green lights mix, colour is yellow.
9.White objects appear white because they reflect all colours. Black objects absorb all colours so no light is reflected.
10.The primary colors of pigment are cyan, magenta, and yellow, which can be mixed to make many other colors.
I hope it will help you....
And You have good day..
ANSWER 1)color 2)black 3)green 4)absorb 5)red, blue, yellow 6)reflect 7)pigment 8)yellow 9)white 10)red, green, blue
Explanation: