1. When the temperature of a coin is raised by 66 F, the coin's diameter increases by 2.00 x 10'5 m. If the original diameter is 1.50 x 10'2 m, find the coefficient of linear expansion. X (C)'1 2. A concrete highway is built of slabs 10.0 m long (at 17 C). How wide should the expansion cracks be (at 17 C) between the slabs to prevent buckling if the annual extreme temperatures are 22 C and 54 C?(the coefficient of linear expansion of concrete is 1.20 x 10'5 C'1) X 0.00384 meters 3. Concrete sidewalks are always laid in sections, with gaps between each section. For example, the figure shows four identical 5.20m sections, the outer two of which are against immovable walls. The three identical gaps between the sections are provided so that thermal expansion will not create the thermal stress that could lead to cracks. What is the minimum gap width necessary to account for an increase in temperature of 30 C? x-cm 4. A well-insulated styrofoam bucket contains 140 g of ice at 0 .C. If 20 g of steam at 100 C is injected into the bucket, what is the final equilibrium temperature of the system?(Cwater=4186 J/kg. C, Lf=3.35 x 10 j/kg, Lv=2.26 x 10 J/kg) X -620 OC3. Concrete sidewalks are always laid in sections, with gaps between each section. For example, the gure shows four identical 5.20-m sections, the outer two of which are against immovable walls. The three identical gaps between the sections are provided so that thermal expansion will not create the thermal stress that could lead to cracks. What is the minimum gap width necessary to account for an increase in temperature of 30 C? 8. A mass m = 0.041 kg of benzene vapor at its boiling point of 80.1 C is to be condensed by mixing the vapor with water at 37 C. What is the minimum mass of water required to condense all of the benzene vapor? Assume that the mixing and condensation take place in a perfectly insulating container. at 0.0883 grams 9. A 50.0-gram lead bullet hits a steel plate, both initially at 18 C. The bullet melts and splatters on impact. Assuming that the bullet receives 70% of its kinetic energy as heat energy, at what minimum speed must it be traveling to melt on impact? (The melting temperature of Lead is 327C) X- m/S