An electron with initial velocity v0 = 1.20 105 m/s enters a region 1.0 cm long where it is electrically accelerated (Fig. 2-23). It emerges with...

An electron with initial velocity v0 = 1.20 × 105 m/s enters a region 1.0 cm long where it is electrically accelerated (Fig. 2-23). It emerges with velocity v = 5.87 × 105 m/s. What is its acceleration, assumed constant? (Such a process occurs in conventional television sets.)