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
Andre45 [30]
3 years ago
9

atoms are the principle constituent of ______ A. all matter b. only solids liquids and gases c. all subatomic particles d. only

plasma
Physics
1 answer:
Soloha48 [4]3 years ago
6 0
I think it is a. all matter

You might be interested in
I need help!<br> Please help Me!
vladimir2022 [97]

Answer:

answer is DE I hope it will help you please follow me

5 0
3 years ago
A ball is thrown straight upward and rises to a maximum
Leviafan [203]

Answer:

Explanation:

As we know that the ball is projected upwards so that it will reach to maximum height of 16 m

so we have

v_f^2 - v_i^2 = 2 a d

here we know that

v_f = 0

also we have

a = -9.81 m/s^2

so we have

0 - v_i^2 = 2(-9.81)(16)

v_i = 17.72 m/s

Now we need to find the height where its speed becomes half of initial value

so we have

v_f = 0.5 v_i

now we have

v_f^2 - v_i^2 = 2 a d

(0.5v_i)^2 - v_i^2 = 2(-9.81)h

-0.75v_i^2 = -19.62 h

0.75(17.72)^2 = 19.62 h

h = 12 m

3 0
3 years ago
Who showed that our universe is heliocentric—the planets of the solar system revolve around the sun? Johannes Kepler Isaac Newto
denis23 [38]

Answer:

Option (3)

Explanation:

Nicolaus Copernicus was an astronomer from Poland, who was born on the 19th of February in the year 1473. He played a great role in the field of modern astronomy.

He was the person who contributed to the heliocentric theory. This theory describes the position of the sun in the middle of the universe, and all the planets move around the sun. This theory was initially not accepted, and after about a century it was widely accepted.

This theory describes the present-day motion of the planets around the sun in the solar system. This theory replaced the geocentric theory.

Thus, the correct answer is option (3).

6 0
3 years ago
Which chemical reaction absorbs energy
kondaur [170]

Answer:

endothermic reactions

8 0
3 years ago
Read 2 more answers
Carol drops a stone in a mine shaft 122.5 metres deep.How
Verizon [17]

Answer:

 T = 5.36 s

Explanation:

given,

depth of the mine shaft = 122.5 m

speed of the sound = 340 m/s

time taken  = ?

time taken by the stone to reach at the bottom

using equation of motion

s = u t + \dfrac{1}{2}gt^2

initial speed , u = 0 m/s

t = \sqrt{\dfrac{2s}{g}}

t = \sqrt{\dfrac{2\times 122.5}{9.8}}

       t = 5 s

time taken by the sound to travel

    d =v x t

 t = \dfrac{d}{v}

 t = \dfrac{122.5}{340}

    t = 0.36 s

total time taken for the sound to reach carol after dropping the stone

T = 5 + 0.36

 T = 5.36 s

7 0
3 years ago
Other questions:
  • A man stands on a platform that is rotating (without friction) with an angular speed of 2.4 rev/s; his arms are outstretched and
    14·1 answer
  • Please help me!!!
    8·2 answers
  • Which is a unit of density? <br> a. cm3/g <br> b. g/cm <br> c. g/cm3 <br> d. ml/g
    7·1 answer
  • You and your friends are going on a picnic in a very small car. On your way, the car breaks down and you try to push it to get i
    9·1 answer
  • The speed of sound is 343 m/s in air at room temperature. What is the wavelength of a B-flat musical note that has a frequency o
    11·1 answer
  • A physics student of mass 51.0 kg is standing at the edge of the flat roof of a building, 12.0 m above the sidewalk. An unfriend
    12·1 answer
  • As a photon from the Sun's core interacts with an atom or ion, the photon gives up its energy to the particle. But the excited p
    14·1 answer
  • The law of superposition states that in an undeformed sequence of sedimentary rocks the oldest rocks will be at the bottom while
    12·2 answers
  • An electric current of 0.75 A passes through a circuit that has a resistance of
    8·2 answers
  • This is the question<br> please help asap
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!