Diffusion is…

What is the correct electronic geometry and molecular geometry around the central nitrogen in NO2-?  (Hint:  you may need to draw the molecule.)  

A car with a mass of 1500 kg is moving at a velocity of 20 m/s. a) Calculate the momentum of the car. b) A 0.1 kg baseball is thrown with a velocity of 30 m/s directly towards the oncoming car from part a. Calculate the momentum of the baseball prior to the collision. c) The baseball crashes through the windshield and stays inside of the car. By how much is the car slowed down by the collision with the baseball?  

You went to a neighborhood party with your entire family last Sunday. Say what everyone in your family wore and brought to the party. Say what you did there, and mention one thing that you forgot to do or bring.    Be sure to demonstrate your mastery of the structures from chapter 6. You will receive up to 10 points for your use of each of the following structures: Demonstrative Adjectives The passé composé with avoir Indirect object pronouns -re verbs Do NOT use any other past tenses for this essay.

The blood transports more CO 2 in the form of ________ than in any other form. 

What are the most numerous cells in the lungs? 

Your breathing rate is 14 breaths/minute; spirometric measurements reveal your tidal volume is 500 mL; your inspiratory reserve volume is 3000 mL; and your expiratory reserve volume is 1,200 mL. Your vital capacity is ________ mL. 

The upper respiratory tract extends from the nose through the ________. 

# 1. Write a Python snippet that creates an email for a user. In a function called get_email,# prompt for the users first name, last name, birth year and PSU id.# Then call the function create_Email, which creates an email consisting of their first name, the intial of their# last name, the last two digits of their birth year, the first three digits of their PSU ID number, and ending# with “@psu.edu”# 2. Write a Python snippet that acts as a users car radio. Initially prompt them to pick from the menu of what# station to listen to : 1). Country, 2). Classic Rock, 3). Alternative, 4). Pop, 5). Acoustic 6). Sports# Once they choose a channel prompt them to: 1). Stay on the same channel (Repeats the question),# 2). Change the station (Calls the function radio_stations()), 3). Turn off the radio# Funtions used:# radio_stations(): This function prints the channel options for the driver to choose from# play_country: Changes the channel to country and displays that the radio is “now playing Jolene by Dolly Parton”# play_rock: Changes the channel to rock and displays that the radio is “now playing Kashmir by Led Zeppelin”# play_alternative: Changes the channel to alternative and displays that the radio is “now playing Buddy Holly# by Weezer”# play_pop: Changes the channel to pop and displays that the radio is “now playing Fireflies by Owl City”# play_Acoustic: Changes the channel to acoustic and displays that the radio is# “now playing Sitting, Waiting, Watching by Jack Johnson”# play_sports: Changes the channel to sports and displays that the radio is “now listening to local sports talk radio”# turn_off: Displays that the radio is off

You are doing a research project on the percentage of graduating High School Seniors in Santa Clarita that plan to attend college in the next coming year. You cannot ask every graduating Senior so you decide to take a sample. Explain how you would get your sample using each of the following sampling methods.  Also indicate if your method would represent the population and explain why it will or why it will not.   c) Voluntary Response Sampling Method