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
Ilya [14]
3 years ago
7

WHICH IS THE HARDEST SUBSTANCE IN EARTH?

Physics
2 answers:
PIT_PIT [208]3 years ago
8 0
Diamond is the hardest naturally occurring substance found on Earth. 
wlad13 [49]3 years ago
3 0
Diamond is the hardest substance in Earth.
You might be interested in
You have 2 objects flying towards you. One of them is havier with lower velocity and the other one is lighter but has higher vel
Lerok [7]

Answer: I would say the object with the Lower velocity because Lighter with Higher velocity makes it heavy, velocity is how heavy something is so the lighter it is the less difficult it will be to catch.

7 0
3 years ago
Will mark the first answer brainliest. Picture attached, kirchhoffs junction rule!
OLEGan [10]

the neutrons through the nucleus?

Explanation:

7 0
3 years ago
A 10-kg rock and 20-kg rock are dropped from the same height and experience no significant air resistance. if it takes the 20-kg
bulgar [2K]
<span>Mass of rock 1 is m1 = 10 kg Mass of rock 2 is m2 = 20 kg 10-kg rock takes T (the same time ) to reach the ground as similar to 20-kg rock that takes time T to reach the ground. If no air resistance is present, the rate of descent depends only on how far the object has fallen, no matter how heavy the object is. This means that two objects will reach the ground at the same time if they are dropped simultaneously from the same height. This statement follows from the law of conservation of energy and has been demonstrated experimentally by dropping a feather and a lead ball in an airless tube. When air resistance plays a role, the shape of the object becomes important. THUS 10-KG & 20-KG ROCK reaches the ground in T-time</span>
3 0
4 years ago
What happens to particles of a substance as its temperature increases? A the average kinetic energy increases B the average kine
Gemiola [76]
The answer is A. When the the temperature increases the kinetic energy increases
6 0
3 years ago
A car engine changes chemical potential energy into the blank energy of the moving car​
kap26 [50]
<h3><u>Answer;</u></h3>

Kinetic energy

A car engine changes chemical potential energy into the <u>kinetic energy</u> of the moving car​.

<h3><u>Explanation;</u></h3>
  • A car engine converts potential chemical energy stored in gasoline into thermal energy and then into kinetic mechanical energy.
  • When gasoline undergoes combustion it reacts with oxygen to produce carbon dioxide and water vapor.Gasoline is a mixture of octane and similar hydrocarbons and contains potential chemical energy.
  • The hot exhaust gases from the combustion of gasoline that are produced within the cylinder expand and exert pressure, moving the piston in the cylinder outward then inward as the gas is exhausted. Kinetic mechanical energy of the moving pistons is transferred to the drive shaft and eventually to the wheels, giving the car kinetic mechanical energy.
7 0
3 years ago
Other questions:
  • A cylinder with a movable piston contains 2.00 gg of helium, HeHe, at room temperature. More helium was added to the cylinder an
    5·2 answers
  • a ball is thrown horizontally from a 20 m high building with a speed of 5.0 m/s. How far from the base of the building does the
    5·1 answer
  • I need a sentence for the word sandy soil
    15·2 answers
  • Which statement correctly describes magnetic field lines?
    13·2 answers
  • A car going 30 m/s to 70 m/s in 10 seconds calculate the acceleration of the car
    15·2 answers
  • When an object with a negative charge is moved from point A to point B through an external electrical field, it gains electrical
    15·1 answer
  • A small object has charge Q. Charge q is removed from it and placed on a second small object The two objects are placed I m apar
    14·1 answer
  • What’s the answer anyone??
    9·2 answers
  • An oil drop with a charge of 2x10-17C is suspended between 2 parallel plates 5cm apart. The
    12·1 answer
  • What type of circuit is shown?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!