20_InstSolManual_PDF_Part3 - (rhr direction Solve(a The...

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20.5. Set Up: The charge is positive, so the magnetic force is in the right-hand rule direction. Figure 20.5 shows and relates the force and acceleration. Figure 20.5 Solve: (a) The right-hand rule applied to and gives that is in the direction. (b) is in the direction. Reflect: The force and acceleration are perpendicular to the plane formed by the directions of and 20.6. Set Up: Use to relate the force F to the angle between the direction of and the direction of Since v , and B are unknown and constant, set up a ratio that involves just F and Solve: which is constant. Therefore, 20.7. Set Up: Use to calculate the force and then use to calculate the acceleration. The charge q of the nucleus is The directions of and are shown in Figure 20.7, where the plane of the page is horizontal and upward is directed out of the page. The acceleration has the same direction as Figure 20.7 Solve: The right-hand rule gives that is north, so the acceleration is north. 20.8. Set Up: Since the particle has negative charge, the force is opposite to the right-hand rule
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Unformatted text preview: (rhr) direction. Solve: (a) The directions of and are shown in Figure 20.8a. The angle is The rhr direction is in the direction so the force is in the direction. 2 z 1 z F 5 1 2.50 3 10 2 8 C 21 40.0 3 10 3 m / s 21 2.00 T 2 sin 130° 5 1.53 3 10 2 3 N. 130°. f B S v S F 5 q v B sin f . F S a 5 F m 5 9.68 3 10 2 16 N 1.50 3 10 2 26 kg 5 6.45 3 10 10 m / s 2 . F 5 q v B sin f 5 4 1 1.60 3 10 2 19 C 21 1.35 3 10 3 m / s 21 1.12 T 2 sin 90° 5 9.68 3 10 2 16 N. N S E W 1 4 e v S B S F S . B S v S 4 e . a 5 F / m F 5 q v B sin f F 2 5 F 1 1 sin f 2 sin f 1 2 5 F 1 sin 30.0° sin 15.0° 2 5 1.93 F . F 1 sin f 1 5 F 2 sin f 2 . F sin f 5 q v B , f . q , B S . v S f F 5 q v B sin f B S . v S 1 z a S a 5 F m 5 5.60 3 10 2 3 N 5.00 3 10 2 3 kg 5 1.12 m / s 2 . F B 5 q v B sin f 5 1 3.50 3 10 2 8 C 21 2.00 3 10 5 m / s 21 0.80 T 2 sin 90° 5 5.60 3 10 2 3 N 1 z F S B B S v S y x v S B S z F S 5 m a S B S . v S Magnetic Field and Magnetic Forces 20-3...
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