1. When the temperature of a coin is raised by 73 °F, the coin's diameter increases by 2.50 ×10¬º m. If the original diameter is 1.55 ×10¬² m, find the coefficient of linear expansion.

= A steel rod with a length of I 1.55 m and a cross section of A = 3.04 cm² is held fixed at the end points of the rod. What is the size of the force developing inside the steel rod when its temperature is raised by AT = 25.0 K? The coefficient of linear expansion for steel is a = 1.17x10-5 1/K, and the Young modulus of steel is E = 200.0 GPa. Submit Answer Tries 0/12

A cylindrical glass flask with a diameter of 8 cm and the height of 20 cm is fully filled with water at 20°C. When the temperature of the water (and consequently the inner surface of the flask) is raised to 100° C, determine the volume of the water that overflows? HINT 1: Don't forget to calculate the initial volume of the water and flask HINT 2: The volume expansion coefficient for ordinary glass and water can be found in the table of Week 4 (Slide #20). HINT 3: Calculate the volume expansions for both water and the flask HINT 4: The difference between the final volume of water and the final volume of the flask is the amount of overflow. PLEASE UPLOAD YOUR HANDWRITTEN SOLUTION BY CLICKING ON THE "ADD A FILE" BUTTON.

If a 0.69 km (at -12°C ) section of straight railroad track made of steel is assumed to behave as a single piece, what is the difference in the length of the track between a cold winter day (-12°C) and a hot summer day (+38°C)? The coefficient of linear expansion (α) of steel is 1.2 × 10-5 °C-1.[1 km = 1,000 m]

When the temperature of a coin is raised by 82 °F, the coin's diameter increases by 2.20 x 10-5 m. If the original diameter is 2.15 x 10-2 m, find the coefficient of linear expansion.

A Pyrex flask in a refrigerator at –7°C is filled to the top and holds exactly 1000 cm³ of ethyl alcohol. If the refrigerator fails, how much alcohol spills by the time the temperature reaches 28°C? The coefficient of volume expansion of ethyl alcohol is 0.00112 (°C)-!. Ignore the expansion of the flask. Answer in units of cm³.

A hot air balloon uses the principle of buoyancy to create lift. By making the air inside the balloon less dense then the surrounding air, the balloon is able to lift objects many times its own weight. A large hot air balloon has a maximum balloon volume of 2090 m3. a.  If the air temperature in the balloon is 54 °C, how much additional mass, in kilograms, can the balloon lift? Assume the molar mass of air is 28.97 g/mol, the air density is 1.20 kg/m3, and the air pressure is 1 atm.

The density of lead is 1.13 x 10“ kg/m³ at 20.0°C. Find its density (in kg/m) at 131°C. (Use a = 29 x 10-° (°C)-- for the coefficient of linear expansion. Give your answer to at least four significant figures.) HINT 3 × kg/m³ 11216.1