Computers and Technology, 16.09.2021 19:10 kodyclancy
Lab Exam 1 covers the following labs:
Laboratory Safety and Basic Lab Techniques, Math review/Dimensional AnalysisIdentification of Substances by Physical PropertiesNomenclatureThere are 25 question. You have 120 min to complete this test. Questions will be a mixture of free response, true/false, fill in the blank, and/or multiple choice. Lab test will not be the exact replica of topics/questions given in study guideLaboratory Safety and Basic Lab Techniques, Math review/Dimensional AnalysisSafety concerns Purpose of exhaust hoodsProper way to dispose broken glassMean and average deviation from mean calculations (ex # 4, pg # 20)
Finding mass and volumeSignificant figures, scientific notation, standard formDensity—conceptual and calculations Conversions (0°C to F and K and vice versa, Kg to Pound and vice versa, gm-kg, ml-l and vice versa etc.)
Practical lab procedures
How do you find the volume or read a graduated cylinder
Unit analysisIdentification of Substances by Physical Properties
ID a substance based on physical propertiesDifference between physical and chemical properties and example
What does it look like to be soluble or insoluble (Use table 1 pg # 38 to answer this kind of questions)?
Density (Density= mass/volume) and how density decides if something is going to float or sink
Practical lab procedures— how do you find the density of unknown solid or liquid?
Answers: 2
Computers and Technology, 22.06.2019 08:10
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.
Answers: 2
Computers and Technology, 22.06.2019 14:30
The “rule of 72” is used to approximate the time required for prices to double due to inflation. if the inflation rate is r%, then the rule of 72 estimates that prices will double in 72/r years. for instance, at an inflation rate of 6%, prices double in about 72/6 or 12 years. write a program to test the accuracy of this rule. for each interest rate from 1% to 20%, the program should display the rounded value of 72/r and the actual number of years required for prices to double at an r% inflation rate. (assume prices increase at the end of each year.)
Answers: 1
Computers and Technology, 24.06.2019 08:30
Aconsumer would pay an extra they used the rent to own program to buy the computer, rather than using cash. for all of the items, is the cheapest option over the life of the contract. the most expensive overall option is to use purchase the item.
Answers: 2
Computers and Technology, 24.06.2019 08:30
Why might you choose to create a functional resume
Answers: 1
Lab Exam 1 covers the following labs:
Laboratory Safety and Basic Lab Techniques, Math review/Dime...
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