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
sineoko [7]
3 years ago
11

A 100-meter sprint is a race using only the straight side of a racetrack. A 400-meter sprint is a race that makes one complete l

ap around a racetrack. Why are velocity and speed the same for a 100-m sprint but not a 400-m sprint?????
PLEASE HELP?????
Chemistry
1 answer:
Neporo4naja [7]3 years ago
7 0
For 100m Race ,
displacement = distance covered .
divide the above equation by time t (assuming it takes t time to complete 100m race),
we get,
velocity = speed.
and for 400m race 1 lap is completed this means that racer's initial and final position coincide (or same) hence,
displacement = 0,
distance ≠0=400m.
=> displacement ≠distance.
=> velocity ≠ speed.
You might be interested in
How many atoms are in 3AsBr3
Vilka [71]

Answer:

the answer is 18 atoms [your welcome]

8 0
3 years ago
Might be hard to read but i do not understand what the “K” means.
alexdok [17]

it means kinetic energy

6 0
3 years ago
Read 2 more answers
To qualify to run in the 2005 Boston Marathon, a distance of 26.2 miles, an 18-year-old woman had to have completed another mara
Elden [556K]
Speed is calculated using the formula distance divided by time. For a distance of 26.2 miles, and a time of 3 hours and 40 minutes, we first convert the time to make it solely in terms of hours. 40 minutes is 2/3 of an hour, so this is a total time of 3 2/3 or 11/3 hours. If we divide 26.2 miles by 11/3 hours, we get a resulting speed of 7.14 miles/hour.
7 0
3 years ago
How do ionic bonds affect the properties of ionic compounds?
Deffense [45]

Answer:

The bonds prevent ions from moving throughout the crystal, so a solid ionic compound is a poor conductor.

Explanation:

Ionic bonds are those bonds that form between the ions of molecules. It is formed as a result of electrostatic attraction between the molecules or compounds. The ionic bonds that forms between ionic compounds are responsible for certain properties exhibited by them.

Ionic bonds hold the molecules of ionic compounds so tightly that it prevent ions from moving throughout the crystal, hence, a solid ionic compound is a poor conductor of heat and electricity.

8 0
3 years ago
10. Which is a practical application of freezing-point depression?
IceJOKER [234]

Answer:

1.

Explanation:

its the practical example

5 0
3 years ago
Other questions:
  • Why is nonpoint source pollution potentially more harmful than point source pollution?
    7·2 answers
  • Which of these metals would you expect to be found in nature as a deposit of relatively pure element?
    11·1 answer
  • 25) How many total ions would be present when an ionic compound is formed between a
    11·1 answer
  • What is the volume needed?<br> mL of 4.00 M H2SO4
    13·2 answers
  • What happens to the influenza virus every 20-40 years, and why? What are the recent example(s)?
    8·1 answer
  • What is the molarity of 0.25 moles of FeCl3 dissolved in 120 ml of solution?
    12·1 answer
  • What is the mass of 4.02 mol Ba(NO2)2
    10·1 answer
  • What is Industrial chemistry?​
    8·1 answer
  • .
    14·1 answer
  • I need help with Chemistry: Mole Conversion<br> It must be answered in complete detail
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!