Question

1 and 2 please...

For 1, is the towards the electric or is it moving in the opposite direction? Or is the magnitude zero?

1 -10 points SerCP10 16.P002 A proton is released from rest in a uniform electric field of magnitude 421 N/C. (a) Find the electric force on the proton magnitude (b) Find the acceleration of the proton m/'s magnitude direction (c) Find the distance it travels in 1.80 Us cm Submit Answer Save Progress 2. 10 points SerCP10 16.P03. A potential difference of 115 mV exists between the inner and outer surfaces of a cell membrane The inner surface is negative relative to the outer surface. How much work is required to eject a positive sodium ion (Nat) from the interior of the cell? 3-10 poinms SerCPl0 16.PO1OM My Not On planet Tehar, the free-fall acceleration is the same as that on Earth, but there is also a strong downward electric field that is uniform close to the planet's surface. A 1.98-kg ball having a charge of 4.72 uC is thrown upward at a speed of 20.1 m/s It hits the ground after an interval of 4.10 s. What is the potential difference between the starting point and the top point of the trajectory? (Use 9.8 m/s2 for the acceleration due to gravity.) kV

Answer 1

F = qE = 1.6 times 10^-19 times 421 F = 6.74 times 10^-17 N same direction as Electric field (b) a = qE/m = 4.03 times 10^10 m/s^2 same as Electric field (c) S = 1/2 at^2 S = 6.53 times 10^-2 m S = 6.53 cm