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
Trava [24]
4 years ago
10

You volunteer for chalkboard cleaning duty and you get to work with the erasers. As you rub the dust off of the chalkboard, whit

e chalk dust enters the air and makes you cough. As you clean the chalkboard with the eraser, are you causing a physical change or a chemical change? Explain your answer.
Physics
1 answer:
Anna71 [15]4 years ago
3 0

Answer:

A physical change

Explanation:

You are wiping chalk particles from the board to the eraser which is just changing the location of the chalk particles, a physical change.

you're not changing the chalk into a new substance or causing a chemical reaction, which would be a chemical change.

You might be interested in
A force acting on a moving ball causes its motion to change. This force stays constant.
sashaice [31]

Answer:

you stop the ball or bring it to a different direction

Explanation:

i don't know if this helps. i didn't take physics yet. but i hope this helps.

8 0
3 years ago
Quan sát sóng dừng trên sợi dây dài 60cm cố định hai đầu, thấy có 3 nút (bao gồm cả hai
stiks02 [169]

Answer:

Quan sát sóng dừng trên sợi dây dài 60cm cố định hai đầu, thấy có 3 nút (bao gồm cả hai

nút hai đầu) và 2 bụng. Bước sóng của sóng lan truyền trên sợi dây là:

7 0
3 years ago
An 80kg parachutist jumps out of an airplane. Neglecting air friction, how fast will he be going after a 10 second free fall?
olganol [36]
If he is jumping you are adding force which means that you will be falling twice as fast
6 0
3 years ago
What has alternating electric and magnetic fields that travel in the form of a wave?
anzhelika [568]

Electromagnetic radiation...

7 0
3 years ago
Which conclusion is supported by the data in the table?
vaieri [72.5K]

Answer:

B. More African Americans became registered to vote in Southern states.

Explanation:

8 0
3 years ago
Other questions:
  • which term best describes the movement of waves and how they interact with one another?a.wave shape b.wave velocity c.wave behav
    6·2 answers
  • The potential difference between two points, A and B, in an electric field is 2.00 volts. The energy required to move a charge o
    5·1 answer
  • If a gas has a gage pressure of 156 kPa, it is absolute pressure is approximately
    13·1 answer
  • Why are muscles an essential part of the circulatory system?
    11·1 answer
  • What objects do balanced forces act on?
    8·1 answer
  • A block–spring system vibrating on a frictionless, horizontal surface with an amplitude of 4.5 cm has an energy of 26 J. If the
    13·1 answer
  • Process of science identifying stellar corpses mastering astronomy
    6·1 answer
  • Why do black holes happen?
    13·1 answer
  • How many neutrons does an atom have with a mass of 108 and an atomic number of 47?
    5·1 answer
  • a rocket traveling at 31 m/s Fars it’s retrorockets generating a negative acceleration. The Rockets are fired for 17 seconds aft
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!