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A magnet of mass 6.28 kg is suspended from the ceiling by a cord as shown. A large magnet is somewhere off to the right, pulling on the small hanging magnet with a constant force of F= 192.0 N. At what angle theta ?with respect to the vertical does the magnet hang? 63.0 degrees 24.2 degrees 72.2 degrees 17.8 degrees

A magnet of mass 6.28 kg is suspended from the ceiling by a cord as shown. A large magnet is somewhere off to the right, pulling on the small hanging magnet with a constant force of F= 192.0 N. At what angle theta ?with respect to the vertical does the magnet hang? 63.0 degrees 24.2 degrees 72.2 degrees 17.8 degrees

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QUESTION 4 Same situation as in the previous problem this time the magnet has mass 3.64 kg, the force pulling it to the right is 53.1 N, the cord has length 1.94 m and the celling is 2.98 m above the floor. How far to the right of its start point will the magnet have traveled when it hits the floor after the cord is cut? 2.82 m 1.13 m 4.23 m 5.076 m QUESTION 5 OK, one more time. This time the magnet has mass 7.93 kg and the force pulling it to the right is 112.8 N. When the magnet hits the floor, it continues being pulled to the right by the same magnetic force as before. The coefficient of kinetic friction between the magnet and the floor is 0.412. What will the magnets acceleration be as it slides to the right along the floor? (Assume static friction is overcome and the magnet will slide.) 8.14 m/s^2 7.9 m/s/2 10.18 m/s^2 5.09 m/s^2 QUESTION 6 Two blocks are positioned on surfaces, each inclined at the same angle of 51.9 degrees with respect to the horizontal. The blocks are connected by a rope which rests on a frictionless pulley at the top of the inclines as shown, so the blocks can slide together. The mass of the black block is 3.73 kg, and the coefficient of kinetic friction for both blocks and inclines is 0.290. Assume static friction has been overcome and that everything can slide. What is must be the mass of the white block if both blocks are to slide to the RIGHT at a constant velocity? 3.73 kg Ⓒ3.04 kg 5.93 kg 2.35 kg
Transcribed Image Text:QUESTION 4 Same situation as in the previous problem this time the magnet has mass 3.64 kg, the force pulling it to the right is 53.1 N, the cord has length 1.94 m and the celling is 2.98 m above the floor. How far to the right of its start point will the magnet have traveled when it hits the floor after the cord is cut? 2.82 m 1.13 m 4.23 m 5.076 m QUESTION 5 OK, one more time. This time the magnet has mass 7.93 kg and the force pulling it to the right is 112.8 N. When the magnet hits the floor, it continues being pulled to the right by the same magnetic force as before. The coefficient of kinetic friction between the magnet and the floor is 0.412. What will the magnets acceleration be as it slides to the right along the floor? (Assume static friction is overcome and the magnet will slide.) 8.14 m/s^2 7.9 m/s/2 10.18 m/s^2 5.09 m/s^2 QUESTION 6 Two blocks are positioned on surfaces, each inclined at the same angle of 51.9 degrees with respect to the horizontal. The blocks are connected by a rope which rests on a frictionless pulley at the top of the inclines as shown, so the blocks can slide together. The mass of the black block is 3.73 kg, and the coefficient of kinetic friction for both blocks and inclines is 0.290. Assume static friction has been overcome and that everything can slide. What is must be the mass of the white block if both blocks are to slide to the RIGHT at a constant velocity? 3.73 kg Ⓒ3.04 kg 5.93 kg 2.35 kg
A magnet of mass 6.28 kg is suspended from the ceiling by a cord as shown. A large magnet is somewhere off to the right, pulling on the small hanging magnet with a constant force of F = 192.0 N. At what angle theta ?with respect to the vertical does the magnet hang? 63.0 degrees 24.2 degrees 72.2 degrees 17.8 degrees QUESTION 2 Consider the same situation as in the previous problem. This time the magnet has mass 5.50 kg and the force pulling the magnet to the right has magnitude 128.5 N. What is the magnitude of the tension force in the cord? 193.1 N 150.2 N 139.4 N 182.5 N QUESTION 3 Same situation as in the previous two problems this time the magnet s mass is 7.19 kg and the magnetic force pulling it to the right is 137.5 N. The length of the cord is 1.26 m, and the ceiling is 2.80 m above the floor. Suppose that you cut the cord and the magnet falls to the floor while still being pulled to the right by the force of 137.5 N. How long will it take the magnet to hit the floor? 0.269 s 1.010 s 0.135 st 0.673 s QUESTION 4 Same situation as in the previous problem this time the magnet has mass 3.64 kg, the force pulling it to the right is 53.1 N, the cord has length 1.94 m and the ceiling is 2.98 m above the floor. How far to the right of its start point will the magnet have traveled when it hits the floor after the cord is
Transcribed Image Text:A magnet of mass 6.28 kg is suspended from the ceiling by a cord as shown. A large magnet is somewhere off to the right, pulling on the small hanging magnet with a constant force of F = 192.0 N. At what angle theta ?with respect to the vertical does the magnet hang? 63.0 degrees 24.2 degrees 72.2 degrees 17.8 degrees QUESTION 2 Consider the same situation as in the previous problem. This time the magnet has mass 5.50 kg and the force pulling the magnet to the right has magnitude 128.5 N. What is the magnitude of the tension force in the cord? 193.1 N 150.2 N 139.4 N 182.5 N QUESTION 3 Same situation as in the previous two problems this time the magnet s mass is 7.19 kg and the magnetic force pulling it to the right is 137.5 N. The length of the cord is 1.26 m, and the ceiling is 2.80 m above the floor. Suppose that you cut the cord and the magnet falls to the floor while still being pulled to the right by the force of 137.5 N. How long will it take the magnet to hit the floor? 0.269 s 1.010 s 0.135 st 0.673 s QUESTION 4 Same situation as in the previous problem this time the magnet has mass 3.64 kg, the force pulling it to the right is 53.1 N, the cord has length 1.94 m and the ceiling is 2.98 m above the floor. How far to the right of its start point will the magnet have traveled when it hits the floor after the cord is
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