how to find the density of air?

Answers

Answer 1
You have to divide the pressure exerted by the air into two partial pressures: of the dry air and of the water vapor. Combining these two values gives you the parameter.

Related Questions

Why do patterns of earthquakes become deeper the farther the distance from a plate boundary?

Answers

Answer:

The result is that epicentres of earthquakes farther to the interior of the overriding plate will correspond to increasingly deep earthquakes.

Lorenzo pushes on a heavy crate with an applied force of 250 N at an angle of 30° below the horizontal. The force of friction opposing the applied force is 95 N. If the mass of the crate is 45 kg, what is the acceleration of the crate?
A. 0.67 m/s2 forward
B. 1.7 m/s2 forward
C. 2.7 m/s2 forward
D. 3.4 m/s2 forward

Also here are some pictures of Shoya Ishida to make your day better:3

Answers

Answer:

A. 0.67 m/s² forward

Explanation:

F applied = 250 N

Fsin30 = 250/2 = 125N

F friction= 95 N

Fnet = F app - F fri

= 125-95

= 30 N ( forward)

Fnet = m a

30 = 45 a

a= 30/45

=2/3

= 0.67 m/s² (forward)

46:13
Which of the scientists responsible for cell theory would be the most likely to write a book titled Cells Come from
Cells?
COM
Hooke
Schleiden
Virchow
Schwann
Save and Exit
Next
Submit
Mark this and return

Answers

Answer:

Virchow

Explanation:

Rudolf Virchow

Answer:

It is Rudolf Virchow! Hope this help and if I could get brainliest that would be much appreciated.

Explanation:




How many electrons have been removed from a positively charged electroscope if it has a net charge of 6x10-11?


pls help !!!


Answers

How much negative charge has been removed from a positively charged electroscope if it has a charge of 7.5x10-11C?

If C is Coulombs then, −1 C is equivalent to the charge of approximately 6.242×10^18 electrons.

You already gave the answer: -7.5x10–11C

It is like asking: What colour is my white horse?

Now if you want to know how many electrons have been removed, then multiplying the number of electrons in a coulomb by the coulombs you have, you get 4.6815 x 10^8 electrons. Which is almost the same answer as before.

3.7 x 10^8 electrons are removed from a positively charged electroscope.

The magnitude of charge carried by one electron is 1.602 x 10^-19 C

From the question, we can see that the net charge on the electroscope is 6 x 10^-11 C

Given that;

6 x 10^-11 = 1.602 x 10^-19 n

Where n is the number of electrons removed from a positively charged electroscope

Therefore;

n = 6 x 10^-11/ 1.602 x 10^-19

n = 3.7 x 10^8 electrons

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1. What is the diameter of Mars?
2. What is primary component of Mars’ atmosphere?
3. Why is Mars red?

Answers

6,799 kmOn average, the data revealed, the equatorial Martian atmosphere consists of 95% carbon dioxide, 2.59% nitrogen, 1.94% argon, 0.161% oxygen, and 0.058% carbon monoxide.

3. The simple explanation for the Red Planet's color is that its regolith, or surface material, contains lots of iron oxide — the same compound that gives blood and rust their hue. ... It does have an iron core, but abundant iron exists in its upper layers, also.

how much is the velocity of a body when it travels 600m in 5 minutes ?

its answer is 2M/S
but I don't know solution to take this answer ​

Answers

Explanation:

Displacement= 600 m

Time= 5×60 = 300 sec

Velocity= Displacement/time

= 600/300

= 2 m/s

Chuyển đổng đều là gì

Answers

Answer:

I don't know what your asking

7.According to the periodic table, how many total particles are there in the nucleus of a Titanium, Ti, atom?

Answers

Answer:

there are 22 massive, positively charged, fundamental particles in the element's nucleus. Given this, the element is unquestionably titanium.

The nucleus of titanium contains 46 particles in total in which 22 protons and 26 neutrons.

What is atomic nucleus?

The atomic nucleus can be described as the small and dense region containing of protons and neutrons at the center of an atom. An atom is made of a positively charged nucleus, with electrons surrounding it, bound together by electrostatic force.

Almost all of the mass of an atom is concentrated in the nucleus as the mass of electrons is negligible. Neutrons and Protons are bound together to create a nucleus by the nuclear force.

The diameter of the nucleus is about 1.70 fm for hydrogen to about 11.7 fm for uranium. Protons and neutrons are fermions, are the particles present inside the nucleus.

The titanium has 22 protons and 26 neutrons in its nucleus so it has 46 particles in its atomic nucleus.

Learn more about atomic nucleus, here:

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#SPJ5

will give correct answer brainliest​

Answers

Answer:

West

Explanation:

This is because the first caar has more mass

If an object starts with a velocity of 5.26 m/s

and ends with a velocity of 60.7 m/s in 15.0

seconds, what is its displacement?

Answers

Answer:

Displacement = 8.4m

Explanation:

Hope that this is helpful.

Have a great day.

[tex]v = 60.7m {s}^{ - 1} \: u \: = 5.26m {s}^{ - 1 } \: t = 15s \: \: \: \: \: \\ a \: = \frac{v - u}{t} \\ a \: = \frac{60 .7- 5.26}{15} \\ a = 3.7m {s}^{ - 28} \\ {v}^{2} = {u}^{2} + 2as \\ {60.7}^{2} = {5.26}^{2} + 2 \times 3.7 \times s \\ 60.7 =27 .7 + 2 \times 3.7s \\60.7 = 29.7 \times 3.7s \\ 60.7 - 29.7 = 3.7s \\ 31 = 3.7s \\ \frac{31}{3.7} = \frac{3.7s}{3.7} \\ s = 8.4m[/tex]

The table describes the properties of four compounds.
Which compounds are most likely ionic?

compounds A and B
compounds B and C
compounds C and D
compounds D and A

Answers

The characteristics of the ionic bonds allows to find the results for the question about which compound are ionic is:

    d) Compounds D and A.

Chemical compounds are formed by atoms linked by electrostatic forces, where one of the elements gave up some electrons and the other element acquired these electrons, the two atoms being in an ionic state, consequently the bond is strong and has several characteristics:

High melting point. It dissolves in polar solvent (water). In general they are hard and brittle solids (NaCl). In solution they are conductors of electricity.

In these characteristics, let's analyze the compounds in the table.

With the property of high melting point the compounds A and D can be ionic. According to the dissolution property all could be ionic. According to the conduction property of electricity, compounds A and D can be ionic

Let's review the different alternatives:

a) False. Compound A and B has a low melting point.

b) False. The B and C compounds have low melting points.

c) False. Compound C has a low melting point.

d) True. The two compounds meet all the characteristics of ionic compounds.

In conclusion with the characteristics of the ionic bonds we can find the results for the question about which compound are ionic is:

       d) Compounds D and A are ionics.

Learn more about ionic bonding here:  brainly.com/question/13526463



6. An object has a volume 30ml and a mass of 30g. What is the density

Answers

Answer:

1 g/mL

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume} \\[/tex]

From the question

mass = 30 g

volume = 30 mL

We have

[tex]density = \frac{30}{30} = 1 \\ [/tex]

We have the final answer as

1 g/mL

Hope this helps you

An object is traveling at a constant velocity of 8 m/s when it experiences a constant acceleration of 3.5 m/s2 for a time of 40 s. What will its velocity be after that acceleration? *

Answers

Answer:

140 m/s

Explanation:

v = u + at

v = 8 + 3.5(40) = 140 + 8 = 140

in the international space station which orbits earth, astronauts experience apparent weightlessness because

Answers

Answer:

because there isn't any gravity there

A person travels 350 km at an average speed of 60 km/hr. How long did it take?

Answers

Answer:  5.8 hours

Explanation:

Time= distance divided by speed, so:

350 divided by 60= 5.8 hours

The answer is 84N, but what is the mass and weight calculation?

Answers

Answer:

weight= density ×volume× 9.8

mass=density×volume

Explanation:

[tex]weight = 0.12 \times 0.04 \times 0.04 \times 3.14 \times 13600 \\ \times 9.8 = 80.351 \: n \\ \\ mass = 0.12 \times 0.04 \times 0.4 \times 3.14 \times 13600 = \\ = 8.199 \: kg[/tex]

A mixture
a. Can always be separated using filtration
b. Contains substances that are not mixed in a specific ratio
c. Is made when two or more elements chemically combine with each other
d. All of the above

Answers

Answer:

B. contains substance s that are not mixed in a specific ratio

Explanation:

the proportion of constituents in a mixture can vary

what makes a force a vector quantity

Answers

Answer:

A vector quantity is a quantity that has both magnitude and direction.

Explanation:

farmer joe drives a tractor for 4 hours. his tractor is pulling a heavy plow across a rocky field. over the course of 4 hours, is the plow gaining or losing energy?

Answers

Over the course of the 4 hours for which farmer Joe's tractor is pulling the heavy plow, the plow is gaining energy by virtue of its displacement --termed the Kinetic energy.

According to the question, Farmer Joe drives the tractor for 4 hours.

However, the tractor is connected to a heavy plow and is used to pull the plow across a rocky field.

The question requires that we determine if the plow is gaining or losing energy.

In the plow's state of rest, prior to when it is connected to the tractor and pulled by the tractor; the plow possess a form of energy by virtue of its position termed the Potential energy.

However, the focus of the question is during the pulling action of the tractor on the plow.

As such, the plow now has a kinetic energy by virtue of its displacement..

Ultimately, the plow is gaining energy as it is being pulled by the tractor and now has Kinetic energy.

Read more:

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How much energy is required to take 500g of ice at -40 degrees to water at room temperature (22 degrees Celsius)? Show work pls

Answers

Answer: Given that:

Mass (m) = 20 g = 0.02 Kg,

temperature (T₁) = -10°C = -10+273 = 263 K

temperature (T₂) = 10°C = 10+273 = 283 K

Specific heat of water (Cp) = 4.187 KJ/Kg k

We know that Heat transfer (Q) = m. Cp.( T₂ - T₁)

                                                   = 0.02 × 4.187 × (283-263)

                                                Q = 1.67 KJ

Heat transferred is 1.67 KJ

Explanation:

some bird migrate 20000 miles if 1 mile equals 1.5 km calculate the distance there birds fly in km

Answers

20000m x 1.5km = 30000km
hope this helped :).

2 Select the correct answer. In a given chemical reaction, the energy of the products is less than the energy of the reactants. Which statement is true for this chemical reaction? O A Energy is absorbed in the reaction. OB. Energy is released in the reaction. OC. There is no transfer of energy in the reaction. OD Energy is lost in the reactlon. Reset Next ghts reserved.​

Answers

Answer:

B Energy is released

Explanation:

If an astronaut pushes on a box in space, how many forces are involved in this interaction?

A. One
B. Two
C. Three
D. Four

Answers

Answer: B. two

Explanation:

There are two forces resulting from this interaction - a force on the chair and a force on your body. These two forces are called action and reaction forces and are the subject of Newton's third law of motion. Formally stated, Newton's third law is: For every action, there is an equal and opposite reaction.

However, In the absence of any forces, no force is required to keep an object moving.

This seems like a simple question, but if you wanted to get technical it would in fact be two forces. As there is still a miniscule amount of gravity.

Which object is in static equilibrium?

Answers

Answer:

I believe it's C. a book that has no net force acting on it and is sitting on a table.

a spacecraft that seems to be motionless in deep space is given some type of quick push. which statement describes what will happen?

Answers

An applied force applied causes a body such as the spacecraft to move. The magnitude of the force determines the change in the velocity

What will happen to the spacecraft is given by option C. from among the possible question options.

C. The spacecraft will begin to move and it will continue moving until it is stopped by an equal and opposite force

Reason:

The possible question options obtained from a similar question includes;

A. The spacecraft will move for some time then stop slowly

B. Air resistance will prevent the spacecraft from moving

C. The spacecraft will begin to move and the motion will continue until a force equal and opposite to the applied force stops it

D. The quick push will not cause the spacecraft to move, as a quick push works on Earth only

The state of the space craft = Motionless

Location of the spacecraft = Deep space

Type of force applied = Quick push

The statement that describes what will happen = Required

Solution;

Let F, represent the force applied, and let Δt be the duration of the applied force, we have;

The impulse of the force, F × Δt = m·(v₂ - v₁)

Where;

m = The mass of the spacecraft

v₁ = The initial velocity of the spacecraft = 0

v₂ = Final velocity of the spacecraft

Plugging in v₁ = 0, gives;

F × Δt = m·v₂

The space craft is given a velocity, v₂, and according to Newton's First Law of Motion, it continues moving in a straight line until another force acts on it

Therefore, the correct option is option C. The spacecraft will begin to move and the motion will continue until it is stopped by an equal and opposite force

Learn more about Newton's First Law of Motion here:

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PI=100 kPa
VI=5 L
P2= 200 kPa
V2=?L

Answers

Answer:

Explanation:

100.5=200.V2

V2 = 2,5L

If you place a force of 10 N on a box and accelerate at 1.2 m/s squared what is the mass of the box?

Answers

Answer:

8.33 kg

Explanation:

The mass of the box can be found by using the formula

[tex]m = \frac{f}{a} \\ [/tex]

f is the force

a is the acceleration

From the question we have

[tex]m = \frac{10}{1.2} = 8.333... \\ [/tex]

We have the final answer as

8.33 kg

Hope this helps you

Scott travels north 2 miles and then goes west 3 miles before coming

straight back south 3 miles. What is the distance traveled and his

displacement??

A)8 miles, 8 mile

B)8 miles, 3.2 miles

C)8 miles, 4 miles

D)8 miles, 2 miles

Answers

I think it’s A because he traveled a total of 8 miles away and in conclusion was displaced from his beginning location by 8 miles

make a island with all renewable energy soursws and how it works and about it but at year 9 level​

Answers

Answer:

How are we expected to make an island

Which of the following accurately describes circuits? Question 5 options: A) In a series circuit, the amount of current passing through each part of the circuit may vary. B) In a parallel circuit, the same amount of current flows through each part of the circuit. C) In a series circuit, the current can flow through only one path from start to finish. D) In a parallel circuit, there's only one path for the current to travel.

Answers

Answer:

The Answer would be C

In a series circuit , the current can only flow through only one path from start to finisb

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