Two point charges of 9μC and 4μC are placed a distance of 4 m apart. a. Calculate the magnitude of the force, in Newtons, on a positive 5μC charge at the midpoint between the two charges.

b. Find the point, measured in meters from the 9μC charge, between the two charges where the force on the 5μC charge is 0?

The a metal retainer that keeps the rolling elements evenly spaced. n a. seal n b. separator n c. bearing n d outer race

Avehicle has an oil leak that is causing the entire oil pan to be wet, but inspection reveals no exact source after cleaning off the oil residue. technician a says to install a fluorescent dye in the crankcase and operate the engine, then re-inspect for leaks with a special light (black light). technician b says the oil leak may be coming from a source at the top of the engine, such as a valve cover gasket. who is correct?

Which type of bond is found between the atoms of a molecule? a. metallic b. delocalized electron c. covalent d. ionic