There 4 types of communication discussed in the video. The l…

There 4 types of communication discussed in the video. The last one had to do with a type of communication that many people dread having to perform. Name and define that type of communication. (1 pt) Then describe a time you were on the sending OR the receiving end of that type of communication. (1 pt)

A  book with a 1.5 kg mass is placed on top of an electronic…

A  book with a 1.5 kg mass is placed on top of an electronic scale, inside an elevator. The elevator is initially at rest for a while, then constantly accelerates to a velocity of 2 m/s downwards in 3 s and remains at this velocity after that. What weight does the scale read before, during, and after the acceleration?