1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ad libitum [116K]
2 years ago
9

9) 25cm³ of a liquid x of density 1.2g/cm³ is mixed with liquid of volume 30 cm³ and 0.9g/cm³ without change in volume. Calculat

e density of the mixture.​
Physics
1 answer:
tino4ka555 [31]2 years ago
8 0

Answer:

0.545g/cm OR 545kg/m(both answers are in cubic)

Explanation:

first we have to find mass of liquid x

mass= density × volume

=25 cubic centimetre × 1.2g/cm

=3g

liquid y= density × volume

=30 cubic centimetre × 0.9g/cm

= 27g

next,we add the two masses

27+3

30g(mass of the whole mixture)

formula for finding density of the mixture

Mass1+ Mass2 ÷ Volume 1+ volume 2

30g ÷55 cubic centimetre

the answer will be a recurring decimal and as we know,we write decimals in 3 significant numbers so we round off

0.5454g/cm= 0.545g/cm and in SI units it's

545kg per cubic meter

You might be interested in
What Is Life?
kirill [66]

Answer:

Life is useless it has no meaning every one wil die and even if you don't die you can't change anything if you do change it won't have a cause. Animals are there to just survive and what do you do after you survive.it nothing life if just useless.

but because life is useless we can give meaning to life we can do what we like, help others get meaning for here life and altho life is useless we can live the useless life in fun

Explanation:

this took me 4 min to make

4 0
3 years ago
Read 2 more answers
The electric potential ( relative to infinity ) due to a single point charge Q is 400 V at a point that is 0.6 m to the right of
UkoKoshka [18]

Answer:

The potential at a distance of 0.9 m is 266.67 V.

Explanation:

Charge = Q

Potential is 400 V at a distance 0.6 m .

Let the potential is V at a distance 0.9 m.

Use the formula of potential.

V = \frac{Kq}{r}\\\\\frac{V}{400}=\frac{0.6}{0.9}\\\\V = 266.67 V

5 0
3 years ago
The diagram shows a proposed design for a ship that could be used for long-distance space travel. Explain why the ship must rota
Aleks04 [339]

Answer:

I don't know this for sure, but I think its because they need to be able to sit in their seats without flying in the air.

Explanation:

3 0
3 years ago
It's a Milky Way galaxy is the galaxy that?
nekit [7.7K]
The Milky Way galaxy ...

-- Is farthest from the sun.
No.  The sun (and the whole solar system, including US)
is IN the Milky Way galaxy.

-- Has the most stars.
No.  It's a pretty big galaxy, but we can see others that are bigger.

-- Has the biggest stars.
No.  Every galaxy has the whole spread of sizes,
from dwarf stars top super giants.

-- Contains our solar system.
Yes !  That's it.  We live in the Milky Way galaxy.

8 0
3 years ago
on the surface of planet x, a body with a mass of 10 kilograms weighs 40. newtons. the magnitude of the acceleration due to grav
VARVARA [1.3K]
Based on the Newton's second law of motion, the value of the net force acting on the object is equal to the product of the mass and the acceleration due to gravity. If we let a be the acceleration due to gravity, the equation that would allow us to calculate it's value is,

      W = m x a

where W is weight, m is mass, and a is acceleration. Substituting the known values,

    40 kg m/s² = (10 kg) x a

Calculating for the value of a from the equation will give us an answer equal to 4. 

ANSWER: 4 m/s². 
7 0
4 years ago
Other questions:
  • The chemical formula for water, H2O, means that each water molecule contains
    9·2 answers
  • How does the earth move within the solar system?
    14·1 answer
  • Mount Tambora, in Indonesia, erupted in April 1815, spewing huge amounts of fine ash into the air. The ash quickly spread throug
    6·1 answer
  • Give two examples of direct current electricity.​
    8·1 answer
  • What determines whether an object will scatter light or reflect light?
    9·1 answer
  • A 96-mH solenoid inductor is wound on a form 0.80 m in length and 0.10 m in diameter. A coil is tightly wound around the solenoi
    12·1 answer
  • A projectile is fired with an initial speed of 100 m/s and angle of elevation 30 degrees. The projectile eventually hits the gro
    9·1 answer
  • Through which media did sound waves travel the fastest and the slowest?
    8·1 answer
  • An elastic band is hung on a hook and a mass is hung on the lower end of the band. When the mass is pulled downward and then rel
    11·1 answer
  • Pls help ASAP!! Thank you
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!