13. [-/6.66 Points] DETAILS SERPSE9 23.P.057.MI. A proton moves at 4.40 x 10 m/s in the horizontal direction. It enters a uniform vertical electric field with a magnitude of 8.80 x 103 N/C. Ignore any gravitational effects. (a) Find the time interval required for the proton to travel 4.50 cm horizontally. (b) Find its vertical displacement during the time interval in which it travels 4.50 cm horizontally. (Indicate direction with the sign of your answer.) mm (c) Find the horizontal and vertical components of its velocity after it has traveled 4.50 cm horizontally. V =i) km/s Need Help? Master It 14. [-/6.66 Po DETAILS SERPSE9 23.P.058. Three solid plastic cylinders all have radius 2.45 cm and length 6.30 cm. Find the charge of each cylinder given the following additional information about each one. Cylinder (a) carries charge with uniform density 15.6 nC/m everywhere on its surface. Cylinder (b) carries charge with uniform density 15.6 nC/m on its curved lateral surface only. C Cylinder (c) carries charge with uniform density 470 nC/m throughout the plastic. 15. [-/6.76 Points] DETAILS SERPSE9 23.P.061. A small block of mass m and charge Q is placed on an insulated, frictionless, inclined plane of angle @ as in the figure below. An electric field is applied parallel to the incline. (a) Find an expression for the magnitude of the electric field that enables the block to remain at rest. (Use any variable or symbol stated above along with the following as necessary: g for the acceleration due gravity.) E = (b) If m = 5.36 g, Q = -6.51 JC, and e = 25.10, determine the magnitude and the direction of the electric field that enables the block to remain at rest on the incline. magnitude N/C direction ---Select