College Physics
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Transcribed Image Text:An electron with speed 2.60x107 m/s is traveling parallel to a uniform electric field of
magnitude 1.20x104 N/C.
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How far will the electron travel before it stops?
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Part B
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How much time will elapse before it returns to its starting point?
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- An electron and a proton, each starting from rest, are accelerated by the same uniform electric field of 260N/C. Determine the distance (d) and time (t) for each particle to acquire a kinetic energy of 5.0x10^-17 Jarrow_forwardTwo particles are in a uniform electric field whose value is +2500 N/C. The mass and charge of particle 1 are m₁ = 1.61 × 10-5 kg and 91=-5.61 C, while the corresponding values for particle 2 are m2 = 2.14 × 105 kg and q2=+16.5 μC. Initially the particles are at rest. The particles are both located on the same electric field line but are separated from each other by a distance d. When released, they accelerate, but always remain at this same distance from each other. Find d. Number Unitsarrow_forwardAn alpha particle (a helium nucleus) is traveling along the positive x-axis at 1200 m/s when it enters a cylindrical tube of radius 0.400 cm centered on the x-axis. Inside the tube is a uniform electric field of 5.50 10-4 N/C pointing in the negative y-direction. How far does the particle travel before hitting the tube wall? Neglect any gravitational forces. Note: m? = 6.64 10-27 kg; q? = 2e. marrow_forward
- A proton moving at 30,170 m/s is projected at an angle of 0.54 in radians above a horizontal plane. If an electric field of 427 N/C is acting down, how long does it take the proton to return to the horizontal plane? (Hint: Ignore gravity. mproton = 1.67 × 10−27 kg, qproton = 1.6 × 10−19 C) ( Give your answer in ?μ s, i.e; 7.56 x10-6 is entered to the answer box as 7.56, use only two decimal places..)arrow_forwardA point charge q1=5.00μC is held fixed in space. From a horizontal distance of 8.00 cmcm, a small sphere with mass 4.00×10^−3 kg and charge q2=+2.00μC is fired toward the fixed charge with an initial speed of 45.0 m/sm/s. Gravity can be neglected. What is the acceleration of the sphere at the instant when its speed is 22.0 m/sm/s?arrow_forwardAn electron is traveling through a uniform electric field. The field is constant and given by E=(2.00×10−11N/C) i^− (1.20×10−11N/C) j^. At t=0 , the electron is at the origin and traveling in the x direction with a speed of 2.20 m/s. Part A) What is its position 2.50 s later? x= ? (in m) Part B) y=?arrow_forward
- An electron is moving horizontally at 3 x 10^6 m/s when it enters an electric field. If the electron deflects 0.9 cm downward in a distance of 2.5 cm determine the magnitude and direction of the electric field.arrow_forwardAn electron (of mass 9.109 × 10−31 kg) anda proton (of mass 1.673 × 10−27 kg) are eachplaced at rest in an external uniform electricfield of 478 N/C.Calculate the speed of the electron after 31 ns. The fundamental charge is1.602 × 10−19 C .Answer in units of m/s.arrow_forwardInside a cathode ray tube, an electron is in the presence of a uniform electric field with a magnitude of 275 N/C. (a) What is the magnitude of the acceleration of the electron (in m/s2)? m/s2 (b) The electron is initially at rest. What is its speed (in m/s) after 1.20 ✕ 10−8 s? m/sarrow_forward
- Three charges are placed along the x-axis: q1 = 3.00 µC at X1 = -20.0 cm, q2 = -5.00 µC at x2 = 10.0 cm, and q3 = 6.00 µC at x3 = 25.00 cm. Determine the magnitude of the electric field at the origin. O 4 69x106 N/C O 2 96x106 N/C O 6 04x106 N/C O 4.31x106 N/Carrow_forward23. Model the dome of a Van de Graaff generator as a uniformly charged spherical shell of radius 0.250 m bearing a charge of +1.50 μC. If an electron undergoes uniform circular motion around the dome and 0.300 m above the surface of the dome, what is the speed of the electron? (A) 4.63×107 m/s (B) 5.11×107 m/s (C) 5.55×107 m/s (D) 6.04×107 m/s (E) 6.56×107 m/sarrow_forwardAn alpha particle (a helium nucleus) is traveling along the positive x-axis at 1075 m/s when it enters a cylindrical tube of radius 0.800 cm centered on the x-axis. Inside the tube is a uniform electric field of 3.00 10-4 N/C pointing in the negative y-direction. How far does the particle travel before hitting the tube wall? Neglect any gravitational forces. Note: m? = 6.64 10-27 kg; q? = 2e. marrow_forward
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