The discussion revolves around calculating the electric force between two charged objects: a glass ball with a charge of +2.8 µC and a rubber ball with a charge of -4.8 µC, separated by a distance of 4.5 cm. The relevant equation for this calculation is provided, but participants are exploring the nuances of the calculation process.
There is an ongoing exploration of the calculation process, with some participants providing their results and seeking clarification on potential errors. Guidance has been offered regarding the significance of the force's magnitude and the appropriate number of significant figures to use.
Participants mention the use of UTexas Quest, which may influence the expected value for k and the precision of the answers. There is also a note about the common practice of reporting only the magnitude of the force in similar problems.
gotpink74 said:is K 9*10^9
Please show your work.gotpink74 said:i got -59.7333 but it is still wrong i do not know what i am doing wrong