An ion in a mass spectrometer follows a semicircular path of radius 14.8. what is the distance it travels?

What is the primary force that suspension bridges use cables to hold their spans up? a. tension force b. resistance force c. normal force d. elastic force e. applied force

Look at the electroscope, describe how you can cause the two leaves at the bottom to repel each other and stay that way

Can someone answer my last question i posted? on my last post? my hw is due tomorrow and i’m confused.