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.
Airborne diseases can be spread via respiratory droplets expelled from the mouth and nose. An airborne disease is any disease that is caused by pathogens and transmitted through the air.Such diseases include many that are of considerable importance both in human and veterinary medicine.n airborne disease is any disease that is caused by pathogens and transmitted through the air.