Three point charges each equal to 10 microcoulombs are located at x = 1m, x = 2m, and x = 3m, respectively, on the x-axis. What is the magnitude of the electric field at the origin? Show your work on camera after answering the question.  

Which of the following correctly explains non-probability sampling? (Select all that apply.)

Which of the following sampling frames is the most desirable?

 Saludos y despedidas  Complete the conversations by writing the appropriate question or expression. (4 x 4 pts. each = 16 pts.)

¡Escuchen! Los apellidos  You are helping the program coordinator by entering the last names of the international students into a database. To avoid mistakes, she is spelling out the names for you. Listen and write the names. (4 x 2 pts. each = 8 pts.) ___________________  [BLANK-1]   __________________ [BLANK-2] ___________________ [BLANK-3]  ____________________ [BLANK-4]

2. —Mucho gusto.    —    ____________________________________________________________________________

Hats and face mask are acceptable during testing.

The top of the testing area (table) as well as under the testing area should be shown during the environment (room) scan.

Which of the following groups is most directly affected by the ethical responsibility described below? As a researcher, you should contribute fully, meet deadlines, and uphold ethical standards. Cutting corners or dropping the ball doesn’t just affect you. It undermines the integrity of the entire project.

Which of the following does not reflect ethical practices in professional research settings?