Answer: The final answer is 1,700 J
Explanation: According to first law of thermodynamics:
=Final energy-initial energy=Change in internal energy
q = heat absorbed or released
w = work done by or on the system
w = work done by the system= {Work done by the system is negative as the final volume is greater than initial volume}
q = +500J {Heat absorbed by the system is positive}
w = work done by the system = -300J
U2- 1500J= + 500J --300J
U2= 1700J
If the thermal energy of the system increases by 400 J, and 1,100 J of heat were added to the system, how much work did the system do?
400 J
700 J
1,100 J
1,500 J
Answer:
700 j
Explanation:
Hey there! I need help with this question, it's about electromagnets. No absurd answers, please. I will be flagging them. Thanks!
Answer: D Moreecethadev get's 5 stars, Thanks.
Explanation:
Answer is D.
Answer: I think it’s C. because it definitely needs more wire but it also needs a higher voltage to pick up more, so I don’t know but I think C.
What type of energy travels through space as waves?
chemical
thermal
electromagnetic
potential
Answer:
electromagnetic energy
ASAP PLS HELP
Which statement accurately describes what happens when water turns to steam in terms of energy?
The water absorbs energy which causes the water molecules to have more kinetic and potential energy, changing their configuration from a liquid to a gas.
The water absorbs energy which causes chemical bonds to break, changing water to steam.
The water releases energy which causes chemical bonds to break, changing water to steam.
The water releases energy which causes the water molecules to have less kinetic and potential energy, changing their configuration from liquid to gas.
Answer:
The water absorbs energy which causes chemical bonds to break, changing water to steam.
Explanation:
Anand’s height is 156 cm. He stands in front of a large vertical plane mirror. If the distance of
image from Anand is 4 m, how far is Anand from the mirror?
please show work
fasttt!!!
riddle of the day
What gets wet while drying?
Answer:
A towel!
Explanation:
The towel gets wet when it dries something off!
Answer:
lol a towel?
Explanation:
because like- I don't know but you get where I'm coming from right?
Which electromagnetic waves can have wavelengths of 300 nm?
A. visible light
B. microwaves
C. ultraviolet waves
D. X-rays
This question is about light transmission.
Answer:
When light hits an object, it is transmitted, absorbed, and/or reflected. The light on the left is reflected, the light in the middle is absorbed and the light on the right is transmitted. Any object you can see must at least partially reflect light to your eyes. Objects can ALSO absorb and/or transmit light.
Wher is the Continental Shelf on the East coast of the United states the Widest?
Explanation:
The widest continental shelf is from Siberia all the way to the Arctic Ocean The widest continental shelf is about 930 miles long (1,500 km)
Answer:
im pretty sure it is:
The continental margin off Cape Hatteras, North Carolina (at 35° North latitude) displays the typical Atlantic Ocean shelf-slope-rise sequence (Fig. 1a). Off the Georgia/South Carolina coast, however, the continental margin is anything but typical
Explanation:
In a parallel circuit, if one bulb goes out the other bulbs will continue to work because they each have their own path.
a. True
b. False
Answer:b
Explanation:
Balanced or un balanced
Answer: unbalance
Explanation:
Would you classify petroleum as a renewable or nonrenewable resource? Justify your answer in two or more complete sentences.
Answer:
Petroleum is a nonrenewable resource. This being because it is a natural gas that take millions of years for it to reform which means each part of it is a once in a lifetime use.
Why do scientists believe the universe is still expanding?
a.The further away an object is, the higher the temperature and pressure eventually become, causing nuclear fusion
b. Distant objects shift in frequency toward red on the electromagnetic spectrum, which tells us objects are moving away from us
c. Spiral galaxies spin, so they appear to be a rotating disk of stars and dust
d. Distant objects shift in frequency toward blue on the electromagnetic spectrum, which tells us objects are closer to us us
Can someone please help me with my answer?
Answer:
student 2 is correct.
Explanation:
isotopes of the same element have the same number of protons in the nucleus but a different number of neutrons.
Tissues types
Please help
Answer:
Explanation: what grade are u in?
If a liquid is heated and the temperature at which it boils is measured, the _____ property is being measured.
molecular
atomic
chemical
physical
Answer: atomic think so
Explanation:
Answer:
Physical.
Explanation:
It is physical because atomic is dealing with something with the elements constructing the substance. Molecular is similar. Chemical is changing the chemical makeup of a substance. So through the process of elimination, it is physical.
What are the chemical symbols?
Cell Structure and Functions Activity
Being a scientist isn't all about using microscopes, beakers, and Bunsen burners. Scientists do a lot of reading to gain knowledge. It also helps them stay current with new theories, tools, and technologies. For this assignment, you are going to read like a scientist!
Open the article The Amazing World Inside a Human Cell. After you read the article, answer the questions on the activity worksheet. You will submit your completed worksheet for grading. Be sure to review the grading rubric before you begin.
Answer:
Labster’s virtual lab simulations allow students to work through real-life case stories, interact with lab equipment, perform experiments and learn with theory and quiz questions.
A Labster virtual lab simulation is an immersive 3D interactive learning environment. The learning environment may look like a laboratory – or sometimes like a forest or like the desert plains of our imaginary exoplanet, Astakos IV.
Over 1000 schools, colleges, and universities around the world are using Labster as a pre-lab, supplemental learning resource, or as a replacement for a face to face lab during the pandemic.
Explanation:
Answer:Labster’s virtual lab simulations allow students to work through real-life case stories, interact with lab equipment, perform experiments and learn with theory and quiz questions.
A Labster virtual lab simulation is an immersive 3D interactive learning environment. The learning environment may look like a laboratory – or sometimes like a forest or like the desert plains of our imaginary exoplanet, Astakos IV.
Over 1000 schools, colleges, and universities around the world are using Labster as a pre-lab, supplemental learning resource, or as a replacement for a face to face lab during the pandemic.
Explanation:
plz help the ones i looked up are wrong
As a girl pushes a bike up a hill, the _____.
kinetic energy of the bike is increasing
kinetic energy of the girl is increasing
potential energy of the bike is increasing
potential energy of the bike is decreasing
7 the grade science I REALLY NEED HELP!!! WILL MARK BRAINLIEST!!
What is the name of each structure?
Choices:
o bone
o cartilage
o ligament
o muscle
o tendon
Answer:
(I might be totally wrong)
A=muscle
B=ligament
C=cartilage
D=tendon
E=bone
Density of water is 1000 kg/m^3. What will be the volume of 35000 kg water?
Please answer it correctly. I’ll give brain-list to correct answer
Answer: I'm sure it's B.
Explanation: Magnets attract paper clips because magnets have a magnetic field, which creates a force, that pulls on other ferromagnetic materials. A paper clip is usually made of steel wire. Steel is an alloy of iron and carbon. Iron is a ferromagnetic material that is attracted by magnets. Hope this Helps!
Why do plates moves?
A.Convection currents in the Lithosphere move the plates.
B. Lithosphere plates move into a trench away from the ridge.
C. Lithosphere plates move away at a ridge.
D. Convection currents in the Mantle move the plates.
Please help me (I struggle with this subject)
Answer:
What happens: The copper wire will spin around. When the wire touches the top of the battery and the magnet, it is making a circuit, which allows electrons to flow – this is the current. ... This force, which is called a Lorentz Force, acts on the wire and causes it to move, which makes the wire spin around.
Explanation:
Plz mark me as brainliest
Answer:
The answer is A :)
A student is drawing a diagram to show the positions of Earth, the Moon, and the Sun
during a full moon.
Where on the diagram should the student place the moon to accurately show its
position relative to the Earth and the sun during a full moon? A.1 B.2 C.3 D.4
To depict the positions of the Earth, the Moon, and the Sun during a full moon, a student is creating a diagram. The moon should be placed before earth. The correct option is D.4
What is a full moon day?A natural satellite is a moon. The moon orbits the planets. On each planet, there are a variable number of moons, ranging from only one on Jupiter to numerous on Earth.
The moon's various phases are visible in various parts of Earth as it orbits the planet. There are many shapes like the moon is full, C-shaped or crescent moon and no moon.
Full moon day is when the moon is fully visible to the earth. The round moon. It happens every 28 days.
Therefore, in the diagram, the moon will be placed at the number 4, before, the earth. The correct option is D.4
To learn more about full moon day, refer to the below link:
https://brainly.com/question/8690537
#SPJ6
Max hears on the news that a total solar eclipse will be visible from his town in the coming week. Which of the following explains why the total solar eclipse will be visible where Max lives?
A. His town will be located within the umbra during the eclipse.
B. His town will be located within the penumbra during the eclipse.
C. A total solar eclipse is visible from all places on Earth's night side.
D. A total solar eclipse is visible from all places on Earth's day side.
Darwin observed fossils of glyptodonts, which are now extinct. Living armadillos are the only animals remaining on Earth that are similar to glyptodonts. Armadillos live in the same places that glyptodonts lived.
What did Darwin most likely conclude about the two types of animals?
Glyptodonts were better adapted to the environment.
Glyptodonts outcompeted armadillos for food.
Glyptodonts were early relatives of armadillos.
Glyptodonts had the exact same adaptations as armadillos.
Answer:
3. Glyptodons were early relatives of armadillos.
Explanation:
Darwin would have come to this conclusion because glyptodons over time became armadillos, which you can tell by evolution that they were better evolved to survive than glyptodons. Due to this, they outlived the glyptodons.
Answer:
C Glyptodons were early relatives of armadillos.
Explanation:
Darwin would have come to this conclusion because glyptodons over time became armadillos, which you can tell by evolution that they were better evolved to survive than glyptodons. Due to this, they outlived the glyptodons.
Explanation:
Two students drop an object into sand from a height of 1.5 meters. They record the depth of the hole made in the sand by each student’s object. What is the most likely explanation for the results?
Answer:
C.
Explanation:
The greater kinetic Energy and object has the great velocity, and often mass an object has (I'm not 100% sure but this is my best guess)
The families on the period table is arranged and organized based on common
A. Properties
B. States of Matter
C.Types of elements
Answer: by atomic mass
Explanation:
The melting point of pure water is _____.
32°C
100°C
0°C
212°C
Answer:
0°C and 32°F
Explanation:
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