For the cart without a washer, how does the potential energy at the top of the ramp compare to the kinetic energy at the bottom of the ramp?

This is the substance(s) formed in a chemical reaction.

This is the number of complete movements of a wave per second.

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