Answer:
The salt is dissolved by the water and heat. If the pot isn't boiling, the salt wouldn't dissolve, it would stay undissolved.
Answer:
An analogy to these waves can be shown in waves of a crowd. The standard wave we see at the baseball game could be considered a transverse wave because the people are moving perpendicular to the direction of the wave. If the people bump shoulders instead of standing up, this would be a longitudinal wave.
Explanation:
The weight of the car in the picture of the computer screen is 9,800 Newton's.