During a phase change, the temperature remains constant. obviously all the heat is used in phase transformation.
The answer is; pressure
The sound is a longitudinal wave meaning the particles vibrate parallel to the direction of the wave. Sound waves, therefore, produce compression (akin to the crest in a transverse wave) and rarefaction regions (akin to a trough in a transverse wave) as its energy is propagated in the medium.
Answer:
It will take 2.68 minutes for them to reach each other.
Explanation:
We use the two following kinematic equations, making the final position the same (for the moment they meet each other):
locomotive 1 --> 
locomotive 2 --> 
we make the two xf equal, and solve for the time (t) using v = 95 km/h:

converting the hours into minutes by multiplying this value times 60;
t = 2.68 minutes
Answer:
D
Explanation:
on the left u see it says velocity
False ! energy can not be created and for generators , they convert mechanical energy to electrical energy !