From what I know; When a sample of liquid water vaporizes into water vapor, the electrons in the water sped up due to heat.
you would multiply 30 by 15. because its the weight times the distance.
Postive and negatives attract, positive and positive repel. answer is negatively charged pipe.
sound waves and light energy are not "affected" by static electricity
Answer:
14.8 kg
Explanation:
We are given that




We have to find the mass of the pulley.
According to question



Moment of inertia of pulley=

Where 



Hence, the mass of the pulley=14.8 kg
HELLO THERE
THE ANSWER IS
D. A gas when vinegar and baking soda are mixed
EXTRA INFO: An exmaple of phyical change is sawing a piece of wood
BEST REGARDS QUEEN Z
HOPE THIS HELPS