Aspring with a spring constant of 1.8 × 102 n/m is attached to a 1.5 kg mass and then set in motion. a. what is the period of the mass-spring system? b. what is the frequency of the vibration

An electron moves with a constant horizontal velocity of 3.0 × 106 m/s and no initial vertical velocity as it enters a deflector inside a tv tube. the electron strikes the screen after traveling 26 cm horizontally and 19 cm vertically upward with no horizontal acceleration. what is the constant vertical acceleration provided by the deflector? (the effects of gravity can be ignored.)