Answer Happy

Content a Material (°C)-1 25 x 10-6 Aluminum Bismuth 13.5 x 10-6 Brass 18.5 x 10-6 Concrete 12 x 10-6 Copper 17 x 10-6 Glass 9 x 10-6 Gold 14 x 10-6 Iron 12 x 10-6 Lead 29 x 10-6 Nickel 13 x 10-6 Silver 19.5 x 10-6 Part 1: Rivets A gold rivet 1.972 cm in diameter is to be placed in a hole 1.971 cm in diameter. If the rivet is initially at 31°C, to what temperature must be cooled to fit in the hole? 5.22 x c Part 2: Pendulum A simple pendulum (a small weight attached to the end of a bismuth thread) has a period of 5 s when at a temperature of -14°C. The temperature then increases to 49°C. Determine the change in the pendulum's period. period change=
Part 1: Rivets A gold rivet 1.972 cm in diameter is to be placed in a hole 1.971 cm in diameter. If the rivet is initially at 31°C, to what temperature must it be cooled to fit in the hole? 5.22 X °C Part 2: Pendulum A simple pendulum (a small weight attached to the end of a bismuth thread) has a period of 5 s when at a temperature of -14°C. The temperature then increases to 49°C. Determine the change in the pendulum's period. period change = Part 3: Standing waves in a string The fundamental frequency on a concrete string that is fixed at both ends is 289 Hz. The string is then cooled 143°C and as such its length changes. Determine how much the fundamental frequency will change as a result assuming the tension remains constant. Af₁ =