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
Charra [1.4K]
3 years ago
7

A Cannon makes a noise, and it's echo is heard 4.5 seconds later. if sound travels at 343 m/s:

Physics
1 answer:
kramer3 years ago
7 0

a).  (343 m/s) x (4.5 sec)  =  1,543.5 meters

b).  The surface it reflected from is  (1543.5 / 2) = 771.75 meters away.

     The sound had to go there AND come back before you heard the echo.
You might be interested in
What are the intercepts of the graphed function?
EastWind [94]

Answer:

the intercepts of a graph are point at which the graph crosses the axes

8 0
3 years ago
When water vapor rises into the atmosphere and begins to condense, it releases ________, the energy of a thunderstorm.
zubka84 [21]
The answer is latent heat. The specific latent heat of vaporisation, L_v, of a substance is the energy input required for each kilogram to be converted from liquid to gas by evaporation. The 'specific' means per kilogram, so more generally latent heat of vaporisation is the energy taken in during the process for a given mass.

Here we are not vaporising the substance. We are in fact condensing it, the reverse process. All this means is the latent heat is released as electrostatic potential decreases in the water, as opposed to being absorbed. I hope this helps you :)
5 0
3 years ago
Read 2 more answers
Write a short description of how the motion of the racers might change from the start of the race to the finish line
Ad libitum [116K]
The motion of the racers might change from the start because the pressure goes up so all the racer wants is to speed up and win, so when the racer first starts he or she is calm because he's not driving yet and when he or she is on his/hers way to he finish line he/she just wants to win and gets under pressure so he speeds up even more and drifts. Your welcome
6 0
3 years ago
How can a cyclist minimize friction as he or she rides? A. by increasing the weight of the bike B. by increasing the tread on hi
jek_recluse [69]
B I believe is the answer!

Hope this helps and have a great day!!!
6 0
3 years ago
Read 2 more answers
6. Velocity is a ____________. a) vector b) value c) arrow d) none of these
Olenka [21]
<span>the speed of something in a given direction.   so i think none of these</span>
4 0
3 years ago
Read 2 more answers
Other questions:
  • A can of spray paint is trapped Inside a hot car. The can breaks explain why?
    12·2 answers
  • I need to know the temperature changes
    6·1 answer
  • Many animals use scent to _____.
    9·2 answers
  • As Earth travels in its ____, different constellations are visible at different times of the year.
    7·2 answers
  • Is a cookie crumbling or in other words breaking a cookie a physical change?
    13·2 answers
  • Which three metal do you think might be present in alnico explain ? ans which one are magnetic​
    6·1 answer
  • At what angle should the player aim the ball if it is thrown from a height of 8.5 ftft with a speed of 28 ft/sft/s?
    13·1 answer
  • A boy having 0.2kg toy tied with a sting, having force 2N, angle 60º displaces it 5 m. What is the work done?
    10·1 answer
  • The force of attraction between things that have mass is called ________________.
    13·1 answer
  • Riddle of the day<br><br> What gets wet while drying?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!