1. [-/2 Points] DETAILS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER (a) Calculate the speed of a proton that is accelerated from rest through an electric potential difference of 148 V. m/s (b) Calculate the speed of an electron that is accelerated through the same potential difference. m/s Need Help? Read it Master It Submit Answer 2. [-/2 Points] DETAILS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A small object with a charge of q = 13.0 UC travels from the origin to the point (x, y) = (20.0 cm, 50.0 cm) in the presence of a uniform electric field E = 2601 V/m. Determine the following (a) the change in the electric potential energy (in J) of the object-field system (b) the electric potential difference (in V) through which the object moves Need Help? Read It Submit Answer 3. [-/2 Points] DETAILS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER An electron moving parallel to the x axis has an initial speed of 5.88 x 10 m/s at the origin. Its speed is reduced to 1.90 x 105 m/s at the point x = 2.00 cm. (a) Calculate the electric potential difference between the origin and that point. Volts (b) Which point is at the higher potential? the point x = 2.00 cm the origin O both have the same potential Need Help? Read It Master It Submit Answer 4. [-/1 Points] DETAILS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER How much work is done (by a battery, generator, or some other source of potential difference) in moving Avogadro's number of electrons from an initial point where the electric potential is 6.90 V to a point where the electric potential is -6.30 V? (The potential in each case is measured relative to a common reference point.) MJ Need Help? Read It Watch It Submit Answer 5. [-/3 Points] DETAILS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Oppositely charged parallel plates are separated by 4.60 mm. A potential difference of 600 V exists between the plates. (a) What is the magnitude of the electric field between the plates? N/C (b) What is the magnitude of the force on an electron between the plates? N (c) How much work must be done on the electron to move it to the negative plate if it is initially positioned 2.84 mm from the positive plate? Need Help? Read It Master It Submit Answer6. [-/2 Points] DETAILS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER (a) Find the electric potential difference AV required to stop an electron (called a "stopping potential") moving with an initial speed of 2.29 x 10/ m/s KV (b) Would a proton traveling at the same speed require a greater or lesser magnitude of electric potential difference? greater lesser O equal Explain. This answer has not been graded yet. (c) Find a symbolic expression for the ratio of the proton stopping potential and the electron stopping potential, AV/AV. (Use the following as necessary: mp for the mass of proton and me for the mass of electron.) AV AV . Need Help? Read It Submit