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
tresset_1 [31]
2 years ago
10

Using the formula velocity = distance/time, how fast does sound travel in air at 20 degrees C given a distance of 500 m and 3.92

seconds.
A- 3.92
B- 127 m/s
C- 2,941 m/s
D- 746 m/s
Chemistry
1 answer:
mixas84 [53]2 years ago
5 0

Answer:

B : 127m/s

Explanation:

= 500 ÷ 3.92

= 127.5

You might be interested in
Calculate the pH of a solution with a [H 3 O + ]=5.6x10 -9 M.
Gre4nikov [31]

Answer:

8.3

Explanation:

pH is the measure of the H+ or H30 (they r the same thing) ions in a solution. it is equal to -log[H+]. [H+]=  Molar concentration of H+ ions.

6 0
3 years ago
Select the ion.<br><br>1)Cu<br>2)PO4-3<br>3)SO2
Lilit [14]
I believe the answer is B. PO4-3
6 0
3 years ago
Read 2 more answers
What is the final concentration of a solution prepared by diluting 35.0 ml of 12.0 m hcl to a final volume of 1.20 l? what is th
Dafna1 [17]
We know that, M1V1     =     M2V2
                        (Initial)          (Final)
where, M1 and M2 are initial and final concentration of soution respectively. 
V1 and V2 = initial and final volume of solution respectively

Given: M1 = 12 m, V1 = 35 ml and V2 = 1.2 l = 1200 ml

∴ M2 = M1V1/V2 = (12 × 35)/ 1200 = 0.35 m
Final concentration of solution is 0.35 m
8 0
3 years ago
The kilogram is the SI unit for mass
Leno4ka [110]

Answer:

yes

Explanation:

SI unit of mass is kilogram.

6 0
3 years ago
Read 2 more answers
How many joules would it take to raise 2 grams of AL 1 degree?
denis23 [38]

Explanation:

Air has a heat capacity of about 700 Joules per kg per °K and a density of just 1.2 kg/m3, so its initial energy would be 700 x 1 x 1.2 x 293 = 246,120 Joules

4 0
2 years ago
Other questions:
  • Give two possible reasons why using tap water instead of distilled water could give misleading
    10·1 answer
  • What is the differentences between atomic number and atomic mass?
    5·1 answer
  • What is the molecular description of diffusion?
    6·1 answer
  • A horizontal row of the periodic table is usually referred to as a ____________
    11·2 answers
  • Which do all groups of plants have these are the choices A.chloroplasts B.roots C.spores D.tubes
    15·2 answers
  • If you start with 75 mg of anisole and excess bromine, and the bromination occurs 3 times, then what is your theoretical yield (
    9·1 answer
  • 5. Rosalind Franklin was a key figure in the discovery of the structure of DNA, yet she
    15·1 answer
  • A cell is placed in a salt solution that has the same concentration as the inside of the cell. What will happen to the cell
    13·2 answers
  • Mastering chemistry - WHY IS THIS WRONG!!
    13·1 answer
  • Use the Rydberg equation to find the wavelength (in Å) of the photon absorbed when an electron in an H atom undergoes a transiti
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!