An alpha particle (charge +2e and mass 6.64 x10-27 kg) is traveling to the right at 1.50 km/s. What uniform electric field (magnitude and direction) is needed to cause it to travel to the left at the same speed after 2.65 s.?

Answer 1

acceleration= change in speed/time
= 3.0km/s

force= ma

also, force= Eq

E= ma/q

Answer 2

To answer the questions

Answer 3

An alpha particle (charge + 2e and mass 6.64 x 10-27 kg) is traveling to the right at 1.50km/s. What u niform electric field (magnitude and direction) is nee ded to cause it to travel to the left at the same speed af ter 2.65µs?