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
katrin2010 [14]
3 years ago
11

A 4 kg rock is rolling 10 m/s find its kinetic energy

Chemistry
1 answer:
larisa [96]3 years ago
5 0
The answer is 200 J

The kinetic energy (KE) is:
KE = 1/2 m * v²
m - mass of the object
v - velocity of the object

We have:
m = 4 kg
v = 10 m/s

KE = 1/2 * 4 kg * 10² m/s
KE = 200 J
You might be interested in
We dissolve 93 grams of sodium sulfate (Na2SO4) in 20 grams of water. What is the percent by mass of sodium sulfate in this solu
dlinn [17]
It should be for the total solution of 93 plus 20 grams which is 113 grams so 93 divided by 113 grams comes to 82.3% sodium sulfate and this can be checked by multiplying 113 grams by 0.823 which results in 93 grams of sodium sulphate. 
4 0
3 years ago
Can someone please help me with this?
Sergio039 [100]
Amu valie on the top and abundsnce percent in decimals on the bottom for each isotope

7 0
2 years ago
25 POINTS! Will mark brainliest if you have a good response!
Zolol [24]
Electrons uniting with electrons of another atom is the cause in this relationship. The effect is a chemical change.
6 0
2 years ago
How does geothermal energy differ from solar energy?
Crazy boy [7]

Answer:

Whereas solar energy makes use of the sun to generate energy, geothermal energy makes use of the heat that is trapped deep in the center of the earth. The magma buried deep down of our soil is as hot as the sun’s surface, and some of that heat manages to escape outward. When that happens, we can harness that said heat for energy.

Explanation:

8 0
3 years ago
Read 2 more answers
The paths in which electrons travel are called what ovals ,paths,circles,orbitals
PolarNik [594]
The paths in which electrons travel are called orbitals.

8 0
3 years ago
Read 2 more answers
Other questions:
  • A solution of water (kb=0.512 ∘c/m) and glucose boils at 103.56 ∘c. what is the molal concentration of glucose in this solution?
    10·2 answers
  • Why matter looks and feels different depending on the object
    5·2 answers
  • What is the Ksp value of Au(OH)3 in chemistry?!​
    12·1 answer
  • at room temperature oxygen gas travels at 393.5 meters per second. How fast does oxygen travel in mile per hour ?
    14·1 answer
  • What is an an example of a chemical reaction?
    9·2 answers
  • Which pair of molecules have the same empirical formula?
    13·1 answer
  • Plsssssssssssssssssssssssssssssssssssssssss help me
    7·1 answer
  • Brainliest if CORRECT<br><br><br><br><br><br><br> 11
    14·2 answers
  • Why do we feel cold when we touch the iron?
    10·1 answer
  • One of the compounds used to increase the octane rating of gasoline is toluene (right). Suppose 20.0 mL of toluene (d = 0.867 g/
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!