PLEASE ANSWER FAST, WILL GIVE BRAINLIEST AND 20 POINTS What causes the poles of the electromagnet in an audio speaker to repeatedly switch directions?

A. a metal striker that pulls on the magnet
B. a diaphragm that vibrates around the magnet
C. a current that rapidly switches direction
D. a device that opens and closes a circuit

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.

What are the different parts of computer

What are the possible consequences of computer hacking? what is computer piracy? describe some examples. what are the effects of computer piracy? what are the possible consequences of computer piracy? what is intentional virus setting? describe some examples. what are the effects of intentional virus setting? what are the possible consequences of intentional virus setting? what is invasion of privacy? describe some examples. what are the effects of invasion of privacy? what are the possible consequences of invasion of privacy? what is an acceptable use policy and what is the purpose of the acceptable use policy what is intellectual property and how can you use it?