Technician a says a lab scope can be used to measure resistance. technician b says that a lab scope can be used to measure frequency by dividing the length of a cycle into 1. who is correct?

Aprotein molecule in an electrophoresis gel has a negative charge. the exact charge depends on the ph of the solution, but 30 excess electrons is typical. what is the magnitude of the electric force on a protein with this charge in a 1600n/c electric field? write in two significant numbers, and also in newton