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
Butoxors [25]
3 years ago
13

18. Reference samples come from a source that is O known O scientific method O physical evidence O individual characteristics​

Physics
1 answer:
zheka24 [161]3 years ago
4 0

Answer:

O scientific method

Explanation:

You might be interested in
The SI system uses three base units. Is this true or false?
ozzi
The\text{ SI }system\text{ uses seven }base\text{ units, hence the statement is false}

8 0
1 year ago
Read 2 more answers
it takes 560s for a runner to complete one circular lap, moving at a speed of 6.00 m/s. what is the radius of a track?
Lostsunrise [7]

Answer:

534.8 meters

Explanation:

Use T=(2*pi*r)/v

560=(2*pi*r)/6

3360=2*pi*r

1680=pi*r

534.8 meters=radius

4 0
3 years ago
Maya made this picture to represent a chemical reaction:
Natalka [10]

The statement that best explains the type of chemical reaction represented by Maya's picture is that it is neither a synthesis reaction nor a decomposition reaction because two reactants form two products. That is option B.

<h3>What is a chemical reaction?</h3>

A chemical reaction is the combination of two elements to yield a new product through the formation of bonds.

A chemical reaction is said to be a synthesis reaction when when two different atoms or molecules interact to form a different molecule or compound.

A chemical reaction is said to be a decomposition reaction when one reactant breaks down into two or more products.

Therefore, from the picture, the chemical reaction is neither a synthesis reaction nor a decomposition reaction because two reactants form two products.

Learn more about chemical reaction here:

brainly.com/question/16416932

#SPJ1

5 0
2 years ago
True or false: Balanced forces can change an object's direction?
slava [35]

The statement is false.  Balanced forces can NOT change the speed OR direction of an object's motion.  (See Newton's #1 law of motion.)

4 0
3 years ago
Read 2 more answers
Compare the mass on Neptune (68.11) to the weight on Neptune (905.863). What is the difference? Why is there a difference?
Alchen [17]
Bbbjv. Jfuzuoud iuzTt45789
7 0
2 years ago
Other questions:
  • Two red blood cells each have a mass of 9.05×10−14 kg and carry a negative charge spread uniformly over their surfaces. The repu
    9·1 answer
  • In which situation can you be at rest and moving at the same time?
    15·2 answers
  • Your life expectancy can be related to the overall well-being of your body your mind and your relationships with other people tr
    10·1 answer
  • Why does water break apart rock when it freezes?
    14·2 answers
  • A hammer falls from the top of a tall building. Ignoring air resistance, how far down will it fall in 3 secs
    15·1 answer
  • n an ecosystem, energy that flows to tertiary consumers ultimately originates from the sun. Please select the best answer from t
    14·2 answers
  • You want to create an electric field vector E = &lt; 0, 5 104, 0&gt; N/C at location &lt; 0, 0, 0&gt;. Where would you place a p
    14·1 answer
  • A veritical brass rod of circular section is loaded by placing a 10 kg wt on top of it .if it's length is 1 m. it's radius of cr
    7·1 answer
  • The speed of an object doubles.How does the change in the magnitude of the objects
    8·1 answer
  • Which pathway is the foundation for the majority of ecosystems and food chains on earth?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!