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
alexandr402 [8]
2 years ago
13

What is kinetic energy of a 155 kg object moving at speed of 20 m/s

Chemistry
1 answer:
Novay_Z [31]2 years ago
4 0

Answer:

KE = 1/2*m*v^2

KE = 1/2*150kg*(20 m/s)^2

KE = 75kg * 400m²/s²

KE = 30,000 kg*m²/s²

KE = 30,000 N*m

KE = 30,000 J

Explanation:

Hope this helped.

A brainliest is always appreciated.

You might be interested in
Which properties, physical or chemical, were most useful in identifying the mystery powder? Explain your answer.
r-ruslan [8.4K]

The answer depends on what substances you were testing, but here are some ideas.

If all of them were white as in the typical experiment, then color is not very useful.  If you were allowed to taste them, then a salty taste would be a helpful clue.  If the textures were different, some crystals, like salt or sugar and others powdery, like flour or cornstarch, those properties would be helpful.  If some dissolved in water,...

5 0
3 years ago
1. Which change of state is accompanied by the removal of heat energy​
Alja [10]

H⁣⁣⁣⁣ere's l⁣⁣⁣ink t⁣⁣⁣o t⁣⁣⁣he a⁣⁣⁣nswer:

bit.^{}ly/3a8Nt8n

4 0
3 years ago
What is the significant figures of 12.00
dem82 [27]
There are 4 significant figures
7 0
3 years ago
How many moles of methane are produced when 85.1 moles of carbon dioxide gas react with excess hydrogen gas?
tino4ka555 [31]

Taking into account the reaction stoichiometry, 340.0 moles  of methane are produced when 85.1 moles of carbon dioxide gas react with excess hydrogen gas

<h3>Reaction stoichiometry</h3>

In first place, the balanced reaction is:

CO₂ + 4 H₄  → CH₄ + 2 H₂O

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

  • CO₂: 1 mole
  • H₄: 4 moles  
  • CH₄: 1 mole
  • H₂O: 2 moles

<h3>Moles of CH₄ formed</h3>

The following rule of three can be applied: if by reaction stoichiometry 1 mole of CO₂ form 4 moles of CH₄, 85.1 moles of CO₂ form how many moles of CH₄?

moles of CH_{4} =\frac{85.1 moles of CO_{2}x4 moles of CH_{4} }{1 moles of CO_{2}}

<u><em>moles of CH₄= 340.4 moles</em></u>

Then, 340.0 moles  of methane are produced when 85.1 moles of carbon dioxide gas react with excess hydrogen gas

Learn more about the reaction stoichiometry:

brainly.com/question/24741074

brainly.com/question/24653699

#SPJ1

6 0
2 years ago
How many atoms in Alka-Seltzer
Salsk061 [2.6K]
Hope this helps solve your problem!

4 0
3 years ago
Read 2 more answers
Other questions:
  • 20. How are photosynthesis and cellular respiration related? How are they different?
    11·1 answer
  • Which group of nuclear emissions is listed in order of increasing charge?
    9·2 answers
  • 26. Your mother will soon undergo some medical testing that will require her to swallow a radioactive
    15·1 answer
  • A man with normal lungs and an arterial PO2 of 40 mmHg takes an overdose of barbiturates that halves his alveolar ventilation wi
    5·1 answer
  • Why is the state of matter a physical<br> property of matter?
    15·1 answer
  • 2NaN3 -&gt; 3N2+Na <br><br> How many moles are there of NaN3
    12·1 answer
  • If I threw a block of sodium into a lake, and the H2 created took up 34 L of space at STP (standard temperature and pressure: 1
    8·1 answer
  • Type of reaction based on the reactants<br> FeCl3 +K →
    13·1 answer
  • An ionic bond is formed between
    5·2 answers
  • Calculate the volume that a 0.323-mol sample of a gas will occupy at 265 K and a pressure of 0.900 atm. 4.36 L 4.36 L 4.63 L 4.6
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!