The iowa legislature passed a law banning trucks 65 feet long or longer from operating on its roads and highways because big trucks do more damage to roads than smaller trucks and are involved in more serious accidents. prior to the ban, consolidated freightways (cf) had driven big trucks through iowa on a regular basis, and these trucks were legal in other states. switching to smaller trucks for trips through iowa was inconvenient and costly. cf filed a lawsuit contending that the statute was unconstitutional. the united states supreme court most likely found that the iowa statute was:

What would happen if people from different races were seperated today

Which of the following methods could be considered a "best practice" in terms of informing respondents how their answers to an on-line survey about personal information will be protected? respondents are informed that investigators will try to keep their participation confidential; however, confidentiality cannot be assured.respondents are informed that a research assistant will transfer all the research data to a password-protected computer that is not connected to the internet, via a usb flashdrive. the computer is located in a research team member's office.the investigator uses the informed consent process to explain her institution's method for guaranteeing absolute confidentiality of research data.the investigator uses the informed consent process to explain how respondent data will be transmitted from the website to his encrypted database without ever recording respondents' ip addresses, but explains that on the internet confidentiality cannot be absolutely guaranteed.the investigator uses the informed consent process to explain how respondent data will be transmitted from the website to his encrypted database without ever recording respondents' ip addresses, but explains that on the internet confidentiality cannot be absolutely guaranteed

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