Amanda, a teacher, is preparing a presentation for a physics class. Which three of these examples should she use to illustrate action-at-a-distance forces? small magnets stuck on a refrigerator door
a car coming to a halt when the brakes are applied
the moon in orbit around the earth
bits of paper sticking to a comb
a football kicked up into the air

The table in columns a-c contains a list of paint color choices for a bathroom and a laundry room. what is a possible sequence of parameters used to organize the data as shown in columns e-g?

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.

Kirk found a local community college with a two-year program and he is comparing the cost with that of an out-of-state two-year school. what is the expected total cost for one year at the local community college if kirk lives at home? what is the expected total cost for one year at the out-of-state school if kirk lives on campus?