Two objects, whose charges are +1.0 and -1.0 C, are separated by 1000 m. Find the magnitude of attraction that either charge exerts on the other.

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?

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?

What sort of waves exhibit the doppler effect?