Which of the following statements are true? Positively charged objects attract other positively charged objects.
Negatively charged objects attract other negatively charged objects.
Positively charged objects attract negatively charged objects.
Negatively charged objects attract neutral objects.
Positively charged objects attract neutral objects.

Hen a gfci receptacle device is installed on a 20-ampere branch circuit (12 awg copper), what is the minimum volume allowance (in cubic inches) required for conductor fill for each conductor in the outlet box?

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 2 options: the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the cold balloon expands and rises. the warm balloon shrinks and sinks. the warm balloon expands and rises. the cold balloon shrinks and sinks.

Which of the following are used in an electrochemical cell? a. electrodes b. electrolyte c. terminals d. all of the above