HEL PLZZZ IF YOU DOI GIVE YOU BRAINLIEST I DO ANYTHING JUST PLZ HEL PLEASE ANSWER IT (65 points) if you want more then do it after you finish it i will give you more points Imagine leading a one-week expedition on the Moon and submit an essay that tells NASA all about it. Describe your team — the number of astronauts in your crew, the skills they possess, their personality traits, and the attributes you would want in your crew mates. And write about one machine, piece of technology, or robot would you leave behind on the lunar surface to help future astronauts.

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Ihave a music player on my phone. i can buy songs, add them to playlists and play them. obviously it would be redundant to store each song in each playlist; each playlist is just a list of pointers to the songs. for this lab you will simulate this behavior. your program will need to have options to: add songs to the system library (you will store the text of the first line of the song, rather than the audio) add playlists add songs to a playlist list playlists play a playlist list all of the songs in the library with a count of how many times each song has been played remove a song from a playlist remove a playlist remove a song from the library (and thus from all playlists that contain it) note that we will not be checking many error cases. in real programming this would be bad, you should usually try to recognize and respond to as many types of errors as you can. in the context of class we are trying to acquaint you with as many concepts as possible, so for the sake of educational efficiency we will not be checking most errors in this lab, you may assume that your user provides correct input. you may add all appropriate error testing if you wish, but we will not be testing for it.

For positive constants a and b, the force between two atoms in a molecule is given f(r) = −a r2 + b r3 , where r > 0 is the distance between the atoms. note: a and b are upper case letters. (a) find f '(r) = (b) find the critical point for f(r). r = (c) find f ''(r) = (d) find the value of r so that f ''(r) = 0.

He 98 pointsss how has computers changed over the years? how can they be used now? give details and such!