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
Sati [7]
4 years ago
7

Calculate the mass of air in a room 5m × 4m ×2m given that the density of air is 1.3kgm-²​

Physics
1 answer:
valentina_108 [34]4 years ago
4 0

32.5 kg of air

Explanation:

To calculate the mass of the air, we use the density formula:

density = mass / volume

mass = density × volume

density of air = 1.3 kg/m³

volume = 5 × 3 × 2 = 25 m³

mass of the air = 1.3 kg/m³ × 25 m³

mass of the air = 32.5 kg

Learn more about:

density

brainly.com/question/952755

brainly.com/question/12982373

#learnwithBrainly

You might be interested in
1.A Radio station broadcasts modern song on medium wave 350 Hz every day at ten o’clock in the morning. The velocity of radio wa
love history [14]

Answer:

ans \:  = \boxed{{4.8 \times 10}^{ - 4}  Hz}

Explanation:

given \to \\  f_{r} = 350 \:  \\ v_{r} =  {3 \times 10}^{8}  \\ but \to \\ v = f \gamma   \to \:  \gamma  =  \frac{v}{f}  : hence \to \\  \gamma _{r} =  \frac{v_{r}}{f_{r}}   =  \frac{3 \times 10^{8} }{350}   =  \boxed{857,142.85714 \: m}\\ therefore \to \\ given \to \\  f_{w} = water \: frequency = \:  \boxed{  ?}\:  \\ v_{w} =  14 50 \\ but \to \\ v = f \gamma   \to \:  \gamma  =  \frac{v}{f}  : hence \to \\  \gamma _{w} =  \frac{v_{w}}{f_{w}}   =  \frac{1}{100}  \times \gamma _{r}  =  \frac{1}{100}  \times 857,142.85714  \\\gamma _{w}  =  \boxed{8,571.4285714 \: m} : hence \to \:  \\ f_{w} =  \frac{v_{w}}{ \gamma _{w}}  =  \frac{1450}{8,571.4285714}  =  \boxed{0.1691666667} \\ if \: the \: number \: of \: times = \boxed{ x} \\ f_{r} (x)=f_{w} \\ (x) =  \frac{f_{w}}{f_{r}}  =  \frac{0.1691666667}{350}  = 0.0004833333 \\ hence \to \\ the  \: frequency  \: of \:  the \:  radio  \: wave  \: is \to \:   \boxed{{4.8 \times 10}^{ - 4}  }\:  \\ that  \: of  \: the \:  wave  \: created  \: in  \: the  \: water.

♨Rage♨

8 0
3 years ago
We use coal, crude oil, and natural gas to generate electricity in _____________.
tresset_1 [31]

Answer:

<u>thermal power stations</u>

Explanation:

these resources are burned to produce the electricity.

5 0
2 years ago
Read 2 more answers
A group of students decides to set up an experiment in which they will measure the specific heat of a small amount of metal. The
lesya692 [45]
I think the answer is C
7 0
4 years ago
Which measure of an earthquake depends on how close you are to the focus?
Vsevolod [243]
<span>The intensity of an earthquake is dependent on one's proximity to the focus of the quake, also called the "epicenter" and is based on observations of the shaking of the ground on humans, structures, and the natural landscape.</span>
8 0
3 years ago
How many miles away is the sun to the earth?
geniusboy [140]
<span>92.96 million mi..........</span>
7 0
3 years ago
Read 2 more answers
Other questions:
  • Give two examples of energy being transformed from one type to another
    7·1 answer
  • 6 .sınıf fen bilimleri
    15·1 answer
  • The diagram below shows light striking a pane of glass. Some of the light is reflected and some of the light is transmitted. The
    14·1 answer
  • "The work done on an ideal gas system in an isothermal process is -400 J. What is the change in internal (thermal) energy of the
    12·1 answer
  • A ball is thrown vertically upward (assumed to be the positive direction) with a speed of 24.0 m/s from a height of 3.0 m. (a) H
    14·1 answer
  • An ice skater starts with a velocity of 2.25 m/s in a 50.0 degree direction. After 8.33s, she is moving 4.65 m/s in a 120 degree
    12·1 answer
  • One clue we can observe that means a chemical reaction has occurred is the formation of light. What is one chemical reaction you
    7·1 answer
  • How will the electrostatic force between two electric charges change if one charge is doubled and the second charge is tripled?
    13·1 answer
  • A space shuttle burns fuel at the rate of 13,000kg in each second. Find the force exerted by the fuel on the shuttle if in 2s th
    15·1 answer
  • Gravity on Jupiter is 25 m/s/s, what is the weight of a 12 kg object on Jupiter?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!