1. [-/2 Points] DETAILS SERPSE10 22.4.OP.011. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Consider an electric field perpendicular to a work bench. When a small charged object of mass 3.74 9 and charge -16.8 UC is carefully placed in the field, the object is in static equilibrium. What are the magnitude and direction of the electric field? (Give the magnitude in N/C.) magnitude N/C direction ---Select-- v Need Help? Read It Submit Answer 2. [-/4 Points] DETAILS SERPSE10 22.4.OP.012.BIO. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Several species of bacteria, including Geobacter metallireducens, have been shown to "eat" electrons, bypassing the usual process of metabolizing sugar to obtain energy. During this process, the bacteria, which already have negatively charged cell membranes, acquire an even larger net negative charge, typically between 10.0e and 85. 0e in magnitude. Individual Geobacter are typically 4.00 um in diameter. What are the magnitude and the direction of the electric field of a bacterium with a net negative charge of magnitude 15.0e at a distance of 1.00 mm from the microbe? (a) the magnitude (in N/C) N/C (b) the direction O radially outward O radially inward What are the magnitude and the direction of the electric force on a second bacterium of net negative charge 40.0e a distance of 1.00 mm from the first bacterium? (c) the magnitude (in N) IN (d) the direction O away from the first bacterium O towards the first bacterium Need Help? Read It Submit Answer3. [-/2 Points] DETAILS SERPSE10 22.4.OP.017. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER (a) A sphere is attached to a filament of length _ = 19.2 cm and suspended from the ceiling, as shown in the figure. A uniform electric field points to the right in the figure. When 0 = 14.1', the sphere is in equilibrium. Find the net charge on the sphere (in uC). E = 1.00 x 103 N/C m = 2.00 g (b) What If? If the electric field is suddenly turned off, what is the speed of the sphere at the bottom of its swing (in m/s)? m/s Need Help? Read It Submit Answer 4. [-/5 Points] DETAILS SERPSE10 22.6.OP.019. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A proton is projected in the positive x direction into a region of uniform electric field E = (-6.20 x 105) i N/C att = 0. The proton travels 6.60 cm as it comes to rest. (a) Determine the acceleration of the proton. magnitude m/s2 direction --Select--. v (b) Determine the initial speed of the proton. magnitude | m/s direction --Select--. v (c) Determine the time interval over which the proton comes to rest. s Need Help? Read It Watch It5. [-/2 Points] DETAILS SERPSE10 22.6.OP.020. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Two particles, an electron and a proton, are initially at rest in a uniform electric field of magnitude 518 N/C. If the particles are free to move, what are their speeds (in m/s) after 51.2 ns? electron m/s proton m/s shot Need Help? Read It Submit