Question

Aluminum 25 x 10 Bismuth Brass Concrete Copper Glass Gold Iron 13.5 x 10-6 18.5 x 10-6 12 x 10-6 17 x 10-6 9 x 10-6 14 x 10-6 12 x 10-6 29 x 10-6 13 x 10-6 19.5 x 106 Lead Nickel Silver Part 1: Rivets A copper rivet 1.963 cm in diameter is to be placed in a hole 1.962 cm in diameter. If the rivet is initially at 20°C, to what temperature must it be cooled to fit in the hole? "C Part 2: Pendulum A simple pendulum (a small weight attached to the end of a gold thread) has a period of 3.1 s when at a temperature of -13°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 582 Hz. The string is then cooled 185°C and as such its length changes. Determine how much the fundamental frequency will change as a result assuming the tension remains constant. Afy =

Answer 1

t) DD + dAT) 6 AT 1 62 =1963(1t 1710 ATE2 966 c Ti29-9 6 6 c - 2 १ - १66 '। 20 9.966 C ATT-T 2T 2 17 2 - 3 3.1 4.3391O 1.345k10 3 G.001345