Answer:
a) the total aircraft weight is less than 55 lbs without fuel/battery.
Explanation:
United States of America has some regulations regarding drone flying. sUAS or small Unmanned Aerial System is generally used for recreational and hobbyist usage, or flying for fun. That drone needs to achieve certain rules like to be registered with the FAA, or to be flown within visual line-of-sight. Also, community-based safety guidelines must be followed, and drone must be under 55lbs (or 25kg).
Answer:
Because of survival instinct.
Explanation:
Before Humans became a social creature, they rely on their power to survive in the harsh environment. They fend for themselves, make their own shelter, fight off all the dangerous alone, etc.
Of course, many of them fail and died since there's only so much that a single human can do.
Knowing this, they try to combine their abilities and form groups to survive in the harsh environment. They soon realized that forming a group dramatically increase the chance of their survival since they can rely on other members to cover each other's weaknesses.
This is why humans started too transformed into a social creature.
Things like mud and dung..........................................................
Answer: According to Piaget, May Lin's ability to use a doll as a representation of a real baby illustrates that she is capable of: SYMBOLIC FUNCTION.
Explanation: Symbolic function in Piagetian theory illustrates the ability of an individual to mentally use an object (the doll) to represent something that is not physically present (her baby brother).