What is happening to particles of matter while a change of state is taking
place?
O
A. They are slowing down.
O
B. They are multiplying in number.
O
C. They are staying at the same speed.
O
D. They are speeding up.

it about 600 mph from what i calculated

the device is called “ rocket engine”

grav potential energy

energy can be converted from one form to another, but it cannot be created or destroyed in ordinary chemical or physical means. do not understand what you are asking but hope this