An electron in a cathode ray tube (the contraptions inside old TV/computer monitors – the ones that were really deep), electrons are accelerated at a rate of 2 x 1015 m/s over a distance of 2 cm. Determine the potential
difference across this 2 cm region.

Answer: it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.explanation:   we have equation of motion ,where s is the displacement, a is the acceleration, u is the initial velocity and t is the time taken.average velocity = displacement/ time taken.average velocity = 10.69 miles/hr = 10.69*1.6*1000/(60*60) = 4.75 m/s4.75 = s/ts = 4. 1we also have acceleration = 2.18 m/s², initial velocity = 0 m/sso it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.

Sorry i don’t know what to do