Neeed help please

A uniform electric field exists in the region between two oppositely charged plane parallel plates, separated by a distance d = 1.1 cm. A particle with mass m = 123 ug and charge q = 11.3 UC is released from rest at the surface of the positively charged plate and it strikes the surface of the opposite plate in a time interval of 4.43 us. a. (Q7 ans 2 pts, Q8 work 4 pts) What is the acceleration of the charge as it's moving between the plates? b. (Q9, 6 pts) What is the magnitude of the electric field between the plates? c. (Q10, 6 pts) What is the potential difference between the plates? d. (Q11, 6 pts) What is the speed of the particle when it strikes the negatively charged plate? To continue, please give the acceleration of the charge (part a) in units of Mm / s