She can put chalk in vinegar as the vinegar will disintegrate the chalk chemically demonstrating chemical changes. But for physical changes she can break the chalk into small pieces by smashing it with something or her hand.
Answer:
For 6.0 eV
0.5 nm, 1.45*10^6 m/s, 6.17*10^10 m/s, 1.45*10^6 m/s
For 600 eV
1.26*10^-3 nm, 2.66*10^8 m/s, 3.37*10^8 m/s, 2.66*10^8 m/s
Explanation:
See attachment for calculation
i think its b cause if you were talking about ice it freezes the melts the evaporates to gas
The light that makes up the image of the fish is refracted when it leaves the water and enters the air. Your brain thinks the light traveled straight, so the fish is not located in the direction from you that your brain thinks it is.
Answer:
14. D
15. It is showing a magnet pushing against itself and everything around with tremendous force.
16. D, because of how many forcefields in that area.
17. It is showing (both) that they are attracting and repealing.
18. I’m not sure sorry :(
Explanation:
hope this helped!
