A proton is released from rest at the positive plate Part A of a parallel-plate capacitor. It crosses the capacitor and reaches the negative plate with a speed of 50000 m/s . The experiment is repeated with a What is the lon's speed at the nogative plate? He ion (charge c, mass 4 u). Express your answer to two significant figures and include the appropriate units. m Value S Submit Previous Answera Request Ancient * Incorrect; Try Again; 4 attempts remaining Provide FeedbackA 2 5-cm-diameter parallel-plate capacitor has a Part A 1:8 mm spacing. The electric field strength inside the capacitor is 1.1x10 V/m. What is the potential difference across the capacitor? You may want to review (Page) . Express your answer to two significant figures and include the appropriate units. HA On ? Value Units Submit Part B How much charge is on each plate? Express your answer to two significant figures and include the appropriate units. HA 2 ? Q= Value Units Submit Request Andaer