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
ivolga24 [154]
3 years ago
12

A Н20= C=1 h=4 o=4 2. H3PO4 + КОН KзРО І

Physics
1 answer:
maks197457 [2]3 years ago
7 0

Answer:

Н20= C=1 h=4 o=4

Explanation:

You might be interested in
Which phase of matter does not conduct heat well?
inessss [21]
Gases do not conduct heat well. 
4 0
3 years ago
Read 2 more answers
Using equations, determine the temperature, pressure and density of the air for a aircraft flying at 19.5 km. Is this aircraft s
Viefleur [7K]

Answer:

a) - 72.5°c

b) pressure = 3625.13 Pa

c) density =  0.063 kg/m^3

d) it is a subsonic aircraft

Explanation:

a) Determine Temperature

Temperature at 19.5 km ( 19500 m )

T = -131 + ( 0.003 * altitude in meters )

  =  -131 + ( 0.003 * 19500 ) = - 72.5°c

b) Determine pressure and density at 19.5 km altitude

Given :

Po (atmospheric pressure at sea level )  = 101kpa

R ( gas constant of air ) = 0.287 KJ/Kgk

T = -72.5°c ≈ 200.5 k

pressure = 3625.13 Pa

hence density = 0.063 kg/m^3

attached below is the remaining part of the solution

C) determine if the aircraft is subsonic or super sonic

Velocity ( v ) = \sqrt{CRT}  =  \sqrt{1.4*287*200.5 } = 283.8 m/s

hence it is a subsonic aircraft

4 0
2 years ago
What part of a thunderstorm kills the most people each year?
alexandr1967 [171]
Here is the answer. The part of a thunderstorm that kills the <span> most people each year is the LIGHTNING. Thunder is only the sound created and will not hurt anyone, but it is the lightning that can kill anyone who will be struck by it. Hope this answers your question. Have a great day!</span>
5 0
3 years ago
Read 2 more answers
What will it be ? Plz help me
IgorC [24]

Answer:

For number 2, it will be 8.

3 0
2 years ago
What name is used for scientists who study the weather in an area over a long time, such as 200 years? Hydrologists weather repo
andrew11 [14]

Answer:

I think it is meteorologist because they also study of the atmosphere, atmospheric phenomena, and atmospheric effects on our weather.

4 0
2 years ago
Other questions:
  • The signal to a speaker causes .5 amps of current. The signal level is increased to 2.5 amps. What is the gain, rounded to the n
    15·1 answer
  • Suppose a car is traveling in the negative x-direction and comes to a stop. What is the sign of that car’s acceleration? How do
    6·1 answer
  • When heat is converted into another form of energy, the total amount of energy is constant. Which law best illustrates this stat
    5·1 answer
  • When the point of reference (the observer) is in motion, it flips the "rules" of vector addition (you ADD the vectors going in o
    14·1 answer
  • Is an object moving in a circle at a constant speed accelerating?
    7·1 answer
  • Half life of a given sample of radium is 22 years the sample will reduce to 25% of its original value after
    8·1 answer
  • A laborer pushes a box to distance of 20m. if the force required to push the box is 25N what will be the quantity of work done​
    9·1 answer
  • The breakdown of rocks by chemical action of air and water is called
    5·2 answers
  • A car on a straight road starts from rest and accelerates at 2.0 meter per second over a distance of 50 meters. Calculate the ma
    5·1 answer
  • How are electromagnetic waves used in a bar-code scanner?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!