On the Moon they would weigh only 200 N. The astronaut's mass is 120kg wherever they are. The weight of an object changes if the strength of gravity changes. Remember: a mass of 1 kg has a weight of about 10 N on Earth.
The droplets in the air may be breathed in by those nearby. Spread can also occur by touching the nose or mouth with droplet contaminated hands. Examples of droplet spread diseases: 1  common cold. 2  flu. 3  meningococcal disease. 4  rubella.
Q: How does the flu spread? A: The flu is spread through airborne viruses, usually carried by air droplets that uninfected people may inhale. It can also spread from person to person through direct physical contact or coming into contact with objects the sick person has touched.