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In the standing wave experiment, we found that the load mass required to produce the first normal mode (also known as the fundamental, with a node at each end and none in the middle) was about 1.5 kg. If we had used a metal piano wire with a linear mass density 4 times that of the nylon string, what would be the load mass required to produce the first normal mode? (a) 0.38 kg (b) 3.0 kg (c) 6.0 kg (d) 0.75 kg (e) None of the above Solve these simultaneous equations, that is, find the unique pair x, y which makes both equation true at the same time. 3x + 4y = 2, 2x + y = 1 (a) (x, y) (3/5, - 1/5) (b) (x, y) (- 2/5, 9/5) (c) (x, y) (3/10, 2/5) (d) (x, y) (2/5, 1/5) (e) None of the above Using linear regression, determine the slope and the y-intercept of the best fit straight line following data. (2 m, 19.5 m/s) (3 m, 26.2 m/s) (4 m, 30.1 m/s) (5 m, 35.1 m/s) (6 m, 39.7 m/s) (7 m, 44.8 m/s) (8 m, 50.5 m/s) The slope is: (a) 3.99 (b) 4.99 s^-1 (c) 4.99 m/s (d) 3.99 m/s (e) None of the above The intercept is: (a) 8.16 s^-1 (b) 10.16 (c) 10.16 m/s (d) 8.16 m/s (e) None of the above Show transcribed image text
In the standing wave experiment, we found that the load mass required to produce the first normal mode (also known as the fundamental, with a node at each end and none in the middle) was about 1.5 kg. If we had used a metal piano wire with a linear mass density 4 times that of the nylon string, what would be the load mass required to produce the first normal mode? (a) 0.38 kg (b) 3.0 kg (c) 6.0 kg (d) 0.75 kg (e) None of the above Solve these simultaneous equations, that is, find the unique pair x, y which makes both equation true at the same time. 3x + 4y = 2, 2x + y = 1 (a) (x, y) (3/5, - 1/5) (b) (x, y) (- 2/5, 9/5) (c) (x, y) (3/10, 2/5) (d) (x, y) (2/5, 1/5) (e) None of the above Using linear regression, determine the slope and the y-intercept of the best fit straight line following data. (2 m, 19.5 m/s) (3 m, 26.2 m/s) (4 m, 30.1 m/s) (5 m, 35.1 m/s) (6 m, 39.7 m/s) (7 m, 44.8 m/s) (8 m, 50.5 m/s) The slope is: (a) 3.99 (b) 4.99 s^-1 (c) 4.99 m/s (d) 3.99 m/s (e) None of the above The intercept is: (a) 8.16 s^-1 (b) 10.16 (c) 10.16 m/s (d) 8.16 m/s (e) None of the above
Show transcribed image text Tod ThielLv2
28 Jul 2019