Which of the following is a variable property for a gas? Select all that apply.

shape
mass
volume
density

Answers

Answer 1

Answer:

volume

Explanation:

mass density and shape are not variable to my view.

pressure volume

number of moles and temperature are variable


Related Questions

how was youll day still in school by the way.

Answers

My day is alright! I just finished school for the day.. and I’m excited for the weekend! How was your day?

Which element has the same number of valence electrons as rubidium.
A. lithium
B. argon
C. calcium
D.iron

Answers

To know if elements have the same number of valence electrons you can look at what group they are in on the periodic table. Rubidium (Rb) is in group one which means it will have the same number on valence electrons as Lithium (Li) because Lithium is also in group one on the periodic table. I hope this helps!!

After Sophia eats her body breaks down the food to use as an engery source when she runs this is an example of which type of engery conversion

Answers

Answer:

cannibalism

Explanation:

because she is eating her body!

Canabilism as stated above

Physics mcq please be sure​

Answers

Answer:

1. c 2.d

Explanation:

we did this in middle school

What is a curved line in velocity time graph represent?

Answers

A curved line shows the slope is constantly changing. Think about it - an upward curve shows the slope is pretty flat at first but it gets very steep as time increases.

So what is the slope of a Vt graph represent? Well, slope is rise over run, aka delta V over delta t. That’s just the formula for acceleration.

We know the slope is changing, and the slope is acceleration, therefore we can say that the acceleration is changing.

It turns out that if you graph this changing acceleration with time, the acceleration changes at a constant rate - it’s linear, NOT a curve. (If you have specific values you could plot this, but if you’re just talking about general graphs, then just take my word for it).

In summary - if you’re velocity is changing at a non constant rate, then you’re acceleration must be changing (at a constant rate).

Hope this helped!

An 80 kg skier stands at the top of a 40-meter slope. She then skis down the slope. What is her approximate speed at the bottom of the slope if friction is negligible and her kinetic energy is 31360 J?

Answers

Thank you for that information.  If we know her mass and kinetic energy, then we don't need any of that other business about the height of the slope, her skiing ability, the friction of the snow, what she uses to wax her skis, the color of her parka, or what she had for lunch at the chalet.  The mass and kinetic energy are enough to answer the question.

Kinetic Energy = (1/2) · (mass) · (speed)²

31,360 J = (1/2) · (80 kg) · (speed)²

speed² = (31,360 J) / (40 kg)

speed² = 784 m²/s²

speed = 28 m/s

Sound will travel slowest through which medium?

Answers

Ice at -25
Hope this helps
May God bless you and your family

any two ways to reduce sound pollution

Answers

Answer:

use earplugs

stay away from noisy areas

lower the volume

What is the speed of a person travels 1 meters in 4 seconds

Answers

Answer:

4 m/s

Explanation:

multiply m ang s para makuha yung speed ng isng object ....

The answer would be 0.25 m/s. Use the speed formula which is distance over time.

10 POINTS and WILL MARK AS A Brainlest PLEASE

Answers

Answer:

240 cm/sec

Explanation:

The speed line is closest to 240sec at 60cm.

Hope this helps! :)

240 cen/ sec :)))))

Where do you weight more on top of Mt. Everest (Highest Mt. in the world) or at the beach

They are the same

Mt Everest

The beach

Not enough information

Answers

You weigh slightly more at the beach than on top of a mountain, because at the beach, you're closer to the center of the Earth.

Please help with this !!!!!!

Answers

Answer:

answer is d from my guess

What is the only part in our body we do not stretch?

Answers

Answer:

The quadriceps consists of four muscles: the skinny rectus femoris and the three huge “vasti” — vastus lateralis/intermedius/medialis. The vasti are only elongated by knee flexion, which is limited to about 120˚ when the calf hits the hamstrings. The vasti cannot be stretched strongly.

Answer:Masseter and temporalis

Why it’s unstretchable: The jaw can only open so far.

Why it’s a dang shame: Jaw tension is epidemic, and trigger points in these muscles cause a wide array of strange face and head pains, including toothaches, headaches, and earaches.

Neon has 10 electrons; two in the inner level and 8 in its outermost level. Will neon form bonds with other atoms?​

Answers

Answer:

no

Explanation:

this is because its valency shell is full so it wont want any other electrons in its valence shell.

What are the three physical things that can reduce the chances of injury while catching a fastball.

Answers

Answer:

Breaking bones, injuring tendons, bruising

Explanation:

if anyone has course hero could you send me the Gizmo Fan Cart Physics?

Answers

Answer:

I might be able to help, but I also might not. I need to check if I can get you the answer.

Explanation:

the force required to lift a load of 800 Newton by using a Lever having a mechanical advantage of 1.6 is​

Answers

Answer:force required to lift the load = 500N

Explanation:

Mechanical advantage for a lever is given by the formulae

= force output/force input

or

Mechanical Advantage = Load / Effort

where

Force output  / Load= 800 N

mechanical advantage = 1.6

Force input / Effort =??

Force input=  Force output /Mechanical advantage

= 800N / 1.6

=500N

OR

Effort = Load/ Mechanical Advantage = 800/ 1.6 = 500N

Qué estudios se realizan en la actualidad para utilizar la electricidad de una manera más eficiente?

Answers

Answer:

Se realizan estudios en tres áreas: a) Procesos de transformación de la energía, b) Almacenamiento de la energía, c) Gestión inteligente entre consumo y generación.

Explanation:

Actualmente, se están realizando estudios en principalmente en tres áreas cruciales: a) Procesos de transformación de la energía, b) Almacenamiento de la energía, c) Gestión inteligente entre consumo y generación.

a) Se están desarrollando nuevos materiales que permiten mayor eficiencia entre la energía recibida y la energía eléctrica, además de una mayor durabilidad frente a las condiciones ambientales. Esto implica el mejoramiento del desempeño de las tecnologías basadas en las energías renovables y limpias, acortando su brecha con las energías no renovables.

b) Se están desarrollando nuevos materiales que garanticen una mayor densidad energética y mayor durabilidad, significando baterías más compactas, con mayor capacidad y más competitivas económicamente.

c) Se están desarrollando estrategias de control inteligente a tiempo que permite sincronizar el consumo y la generación, además de posibilitar el flujo bidireccional de la energía a través de una red inteligente (smart grid) e integrar mejor las fuentes renovables dentro de la matriz energética.

Why is it that a car traveling in the opposite direction as the car in which you are riding on the freeway often looks like it is moving faster than the speed limit?

Answers

It’s because of the theory of special relativity:
Object moving faster than your view actually move through time quicker.
Einstein actually proved this. Pretty neat

What is Newton's Second Law?


1.The attraction between objects

2.An object at rest tends to stay at rest and an object in motion tends to stay in motion unless acted upon by an unbalanced force

3.An object's acceleration depends on its mass and on the net force acting on it.

4.For every action there is an equal and opposite reaction

Answers

Answer:

An object's acceleration depends on its mass and on the net force acting on it.

Explanation:

Newton's second law states that the acceleration of an object is directly related to the net force and inversely related to its mass. Acceleration of an object depends on two things, force and mass.

Answer:

3.An object's acceleration depends on its mass and on the net force acting on it.

All weather stations have to make weather observations at the same time of the day.

True
False

Answers

Answer:

false

Explanation:

Answer:

True

Explanation:

The answer is true do not listen to the other person they will get you wrong just look at the votes between mine and the other person's (hint like my answer and rate 5 stars so other people know what to pick)

Semi–conductors are materials that

Answers

Semi-conductors are materials that have conductivity between that of a conductor and a non-conductor (insulator).

Example: Silicon

. ___________ The heat and light move from the core into this layer.

Answers

[tex]\huge{ \star \fcolorbox{magenta}{purple}{ \fcolorbox{magenta}{blue}{ \fcolorbox{magenta}{pink}{ \fcolorbox{magenta}{red}{ \sf{photosphere}}}}}} \star[/tex]

Answer:

PHOTOSPHERE

Explanation:

HOPE IT HELPS YOU

10 POINTS Please AND Will Mark AS BRAINLEST Please

Answers

Answer:

B

Explanation:

The answer:


B



Explanation:

According to Newton's second law equation, what is the relationship between net force applied and the acceleration of the object

Acceleration is inversely proportional to the net force

if acceleration goes up forces goes down

if acceleration goes down mass goes down

Acceleration is directly proportional to the net force

Answers

Answer:

Acceleration is directly proportional to the net force

Explanation:

The net force acting on an object is given by :

F = ma

Where

m is mass

and

a is acceleration

It can be seen that the relation between the net force and the acceleration is direct i.e. as the acceleration increases, the net force will increase. Hence, the correct option is (d).

A child pushes a 2.2kg swing that is initially at rest. The net force on the swing over time is shown below. What's the swings speed at t= 40ms

Answers

Answer:

The answer is "[tex]\bold{0.36363 \ \frac{m}{s}}[/tex]"

Explanation:

Please find the attached file of the complete question:

Given:

[tex]m= 2.2 \ kg\\\\t= 40 \ ms[/tex]

Using formula:

[tex]\to F=ma[/tex]

       [tex]= 2.2 \ (a)\\\\= 2.2 \ \frac{dv}{dt}[/tex]

but  

[tex]\to F= f(t)\\\\[/tex]

[tex]\to 2.2 \ a= f(t)\\\\ \to 2.2 \ \frac{dv}{dt}=f(t)\\\\ \to \int^{v}_{0} \ dv =\int^{t= 40 ms}_{0} (\frac{f(t)}{2.2}) \ dt\\\\[/tex]

[tex]\to v= \frac{\text{(Area of given graph)}} {2.2} \\\\[/tex]

      [tex]=\frac{1}{2} \times \frac{1}{2.2} \times 40 \times 40 \times 10^{-3} \ s\\\\= \frac{1}{4.4} \times 40 \times 40 \times \frac{1}{1000} \ s\\\\= \frac{1}{4.4} \times 16 \times \frac{1}{10} \ s\\\\= \frac{16}{44} \ s\\\\= 0.36363 \ \frac{m}{s}[/tex]

What will happen in the next moment for the girl on the swing?

1.Fill in wether quantities will increase, decrease, or stay the same.

2. Support your answer in the table below

Answers

Answer:

Increase, same, same

Explanation:

manganese dioxide is used in the dry cell as​

Answers

Answer:

Electrolytic manganese dioxide (EMD) is used in zinc-carbon batteries together with zinc chloride and ammonium chloride. EMD is commonly used in zinc manganese dioxide rechargeable alkaline (Zn RAM) cells also. For these applications, purity is extremely important.

Explanation:

hope this helps...

What is the direction of the current in the loop as the north pole of the magnet is pulled away (to the right) from the loop of wire. Answer as you face the loop from the magnet.

Answers

Answer:

Explanation:

Applying Fleming's right hand rule, the induced current would flow in a clockwise direction in the loop. Explanation: Current, magnetic field and motion are mutually dependent and perpendicular to one another.Aug 27, 2019

PLEASE HELPPPP!!!!!!!!!!

Answers

Answer:

I think its B

Explanation:

I’m pretty sure it’s B :)
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