suppose the conducting spherical shell in the figure below carries a charge of 2.60 nC and that a charge of -2.20 nC is at the center of the sphere. If a 1.60 m and b= 2.30 m, find the electric field at the following. b. Qx (a) r- 1.50m magnitude N/C direction Select- (b) r= 2.20 m magnitude N/C direction Select (c) r= 2.50 m magnitude N/C direction --Select- (d) What is the charge distribution on the sphere? inner surface nC outer surface nC

Protons are projected with an initial speed v. = 9,950 m/s into a region where a uniform electric field of magnitude E = 540 N/C is present (see figure below). The protons are to hit a target that lies a horizontal distance of %3D 1.30 mm from the point where the protons are launched. Target -R Proton beam (a) Find the two projection angles 0 that will result in a hit. (Enter the smaller angle first.) 02 = (b) Find the total duration of flight for each of the two trajectories. (Enter the smaller duration of flight first.) t = t2 = %3D IL || I|||

Two charges of 3.00x10-6 C and -1.25x10-6 C are placed at a separation of 20cm. a. Determine where a third charge should be placed on the line connecting the two charges so that it experiences no net force due to these two charges. b. Determine the acceleration of a proton located mid-way between the two charges. Thank you

▼ Part A What is the magnitude of the electric field at a point midway between a –7.4 µC and a +8.2 µC charge 9.8 cm apart? Assume no other charges are nearby. Express your answer using two significant figures. HẢ ? E Value Units Submit Request Answer Part B What is the direction of the electric field? toward the negative charge toward the positive charge Submit Request Answer