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
noname [10]
3 years ago
10

The winner of the 20 km race ran at an average speed of 4 m / s. How long did he take to complete the race?

Chemistry
1 answer:
Amanda [17]3 years ago
4 0

Answer: 5, 000s

Explanation:

Distance 20km=20,000m

Speed 4m/s

Time =?

Speed = distance / time

4 = 20, 000/ x

Cross multiply

4x=20, 000

X = 5, 000

X = time = 5, 000

You might be interested in
Which statement is true for the given reaction? Na2SO4(aq) + Mg(s) →
Arlecino [84]
Answer is: no reaction occurs.
No reaction occurs because magnesium (Mg) is less reactive than sodium (Na). Sodium is higher in activity series of metals and can not be reduced. <span> Metal X will replace another metal Y in a solution if X is higher in the activity series. </span>
4 0
3 years ago
Read 2 more answers
What state of matter is the body mostly made up of
Alinara [238K]
Liquid makes up most of the body
5 0
3 years ago
What quantity of heat is transferred when a 150.0g block of iron metal is heated from 25.0°C to 73.3°C? What is the direction of
s344n2d4d5 [400]

The direction of heat flow is increased which means blocks temperature is higher and hotter than it was before

3 0
2 years ago
How many electrons can the px atomic orbital subtype hold?
NemiM [27]
The p sublevel holds 6 electrons because it has 3 orbitals.
8 0
3 years ago
What is the symbol for the carbon isotope with seven neutrons?
Tresset [83]
Carbon -13 has 7 neutrons and carbon -12 has six neutrons. Carbon -12 is the most common isotope of Carbon. Carbon -14 is radioactive and vary rare. The symbols for the isotopes of Carbon atoms shown here indicate they each have six protons but mass numbers of 14, 13, and 12. Hope this helps. :)
8 0
3 years ago
Other questions:
  • How does this chemistry content connect to your Chemical Engineering Design Challenge project?
    10·1 answer
  • Butane reacts with chlorine to form 2 isomers. Name these 2 isomers. ​
    11·2 answers
  • CH4(g)+ 2 O2(g) + CO2(g) + 2 H20 (l)
    6·1 answer
  • Cindy made tea. She started with 300 grams of water at 20 degrees Celsius. She transferred 18,000 calories to the water. What wa
    11·1 answer
  • Carbon tetrachloride, CCl4, once used as a cleaning fluid and as a fire extinguisher, is produced by heating methane and chlorin
    5·1 answer
  • The Earth's crust is a thin layer that takes up less than<br> %(percent) of the Earth
    5·2 answers
  • During and exothermic reaction, energy is _______ the surroundings.
    8·1 answer
  • What is the percentage of hydrogen in c2h4
    12·1 answer
  • No changes will ever be made to the scientific classification system. Is this a valid statement? Why or why not? HELP PLZ GIVING
    12·1 answer
  • Which of the following is an example of eukaryotic cells?<br> animals<br> bacteria<br> archaea
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!