4. Two stationary point charges +3.00 nC and +2.00nC are separated by a distance of 50.0 cm. An electron is released from rest at a point midway between the two charges and moves along the line connecting the two charges. What is the speed of the electron when it is 10.0 cm from the +3.00 nC charge?
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- The image shows three charges fixed in place. The distance in the image is ? = 0.2 m and the charge is ? = 4×10−16 C An electron (not pictured) initially at point A has a speed of 106 m/s as it moves toward point B. What is the speed of the electron at point B?Suppose Q = 2 nC, like the other two charges. If the assembly of identical charges is released from rest, what kinetic energy will each charge have after they all fly apart to infinity? 1 cm, 2 nC (+ ( 2.4 u O 36uJ O 1.2uJ O72uJ + 60° 60% 60% 1 cm 1 cm +) 2 nCA positive charge of 4.20 μC is fixed in place. From a distance of 4.20 cm a particle of mass 6.20 g and charge +3.00 μC is fired with an initial speed of 62.0 m/s directly toward the fixed charge. How close to the fixed charge does the particle get before it comes to rest and starts traveling away? (in cm)
- Two point charges Q₁ = 3.27 nC and Q2 = -3.02 nC are shown in the figure. Q₁ is located at (-2.1 cm, 0.0 cm) while Q2 is at (0.0 cm, 2.6 cm)). from the charges? very far away If a proton is released from rest at the origin, how fast will it be moving when it is V = If an electron has a speed of 6.52 × 106 very far away from the charges shown above, how fast would it be moving at the origin? V =An electron is initially at rest at distance 0.15 m from a fixed charge Q = -5.00×10-9 C. The electron accelerates. How fast is it moving when the distance is 0.3 m?Two identical point charges (q = +1.00 x 10-6 C) are fixed at opposite corners of a square whose sides have a length of 0.420 m. A test charge (90 = -7.50 × 10-8 C), with a mass of 2.80 x 10-8 kg, is released from rest at one of the corners of the square. Determine the speed of the test charge when it reaches the center of the square. Number i Units .90 VB
- One type of ink-jet printer, called an electrostatic ink-jet printer, forms the letters by using deflecting electrodes to steer charged ink drops up and down vertically as the ink jet sweeps horizontally across the page. The ink jet forms 35.0 μm-diameter drops of ink, charges them by spraying 800,000 electrons on the surface, and shoots them toward the page with a horizontal velocity of 17.0 m/s. Along the way, the drops pass through the long axis of two horizontal, parallel electrodes that are 6.0 mm long, 4.0 mm wide, and spaced 1.0 mm apart. The distance from the center of the electrodes to the paper is 1.90 cm. To form the letters, which have a maximum height of 6.0 mm, the drops need to be deflected up or down a maximum of 3.0 mm. Ink, which consists of dye particles suspended in alcohol, has a density of 800 kg/m³. 3 E D 80 C $ 4 R 888 F4 F V % 5 FS T ^ G 6 B Part A What electric field strength is needed between the electrodes to achieve this deflection? Express your answer with…Oppositely charged parallel plates are separated by 5.36 mm. A potential difference of 600 V exists between the plates. (a) What is the magnitude of the electric field strength 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 2.92 mm from the positive plate? JOppositely charged parallel plates are separated by 3.77 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 2.66 mm from the positive plate? J