Physics Middle School

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

Answers

Answer 1

Answer:

700 j

Explanation:

Answer 2
The answer is 700 J. Hope I helped have a great day!

Related Questions

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

Answers

Answer:b

Explanation:

False! The answer is B!

If a liquid is heated and the temperature at which it boils is measured, the _____ property is being measured.

molecular

atomic

chemical

physical

Answers

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.

Please help me (I struggle with this subject)

Answers

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 :)

Can someone please help me with my answer?

Answers

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.

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.

Answers

I believe the answer is D, there is a chance the answer is a but im not too sure
Tectonic shift is the movement of the plates that make up Earth's crust. ... The heat from radioactive processes within the planet's interior causes the plates to move, sometimes toward and sometimes away from each other. This movement is called plate motion, or tectonic shift.

What are the chemical symbols?

Answers

The one on the left is O for oxygen the one on the right is F for fluorine
I agree O for oxygen and F for fluoride

This question is about light transmission.

Answers

When a light wave with a single frequency strikes an object, a number of things could happen. The light wave could be absorbed by the object, in which case its energy is converted to heat. ... When this occurs, objects have a tendency to selectively absorb, reflect or transmit light certain frequencies.

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.

Tissues types
Please help

Answers

Answer:

Explanation: what grade are u in?

Please answer it correctly. I’ll give brain-list to correct answer

Answers

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!

It’s B. Bc the magnetic force travels through that’s why when you put both negatives of a magnet towards each other they don’t stick theres always a little after

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.

Answers

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:

Which electromagnetic waves can have wavelengths of 300 nm?
A. visible light
B. microwaves
C. ultraviolet waves
D. X-rays

Answers

I believe that the answer is A

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

Answers

Answer:

(I might be totally wrong)

A=muscle

B=ligament

C=cartilage

D=tendon

E=bone

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.

Answers

Answer:

The water absorbs energy which causes chemical bonds to break, changing water to steam.

Explanation:

The first answer is correct,
the water releases energy which causes chemical bonds to break, changing water to steam.

An example for this could be when you put a pot of water on the stove and you see steam coming from the boiled water.

Density of water is 1000 kg/m^3. What will be the volume of 35000 kg water?

Answers

Volume = mass/density
Volume = 35000/1000
Volume = 35m^3

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?

Answers

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)

riddle of the day

What gets wet while drying?

Answers

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?

What type of energy travels through space as waves?

chemical

thermal

electromagnetic

potential

Answers

Answer:

electromagnetic energy

Radiant energy is the energy of electromagnetic waves
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