Which type of signal transmission is better overall digital or analog? Please support your answer with three pieces of evidence/reasoning.

A2 kg ball travellng to the right with a speed of 4 m/s collidees with a 5 kg ball traveling to the left with a speed of 3 m/s. take right to be the positive direction. what is the total momentum of the two balls before they collide? what is the total momentum of the two balls after they collide?

4. if you were an astronaut on the moon, what would you experience? what would you see from your perspective?

Acid precipitation chemically weathering a 5.0-kg limestone rock . which coukd be the result ?