1. One rod is made from lead and another from quartz. The rods are heated and experience the same change in temperature. The change in length of each...

Please answer all questions - not just one. These are the questions I am struggling with figuring out. 1. One rod is made from lead and another from quartz. The rods are heated and experience the same change in temperature. The change in length of each rod is the same. If the initial length of the lead rod is 0.10 m, what is the initial length of the quartz rod?2. A composite rod is made from stainless steel and iron and has a length of 0.734 m. The cross section of this composite rod is shown in the drawing and consists of a square within a circle. The square cross section of the steel is 4.95 cm on a side. The temperature at one end of the rod is 68.8 °C, while it is 26.5 °C at the other end. Assuming that no heat exits through the cylindrical outer surface, find the total amount of heat conducted through the rod in two minutes.3. Suppose the stove in that example had a surface area of only 1.92 m2. What would its temperature (in kelvins) have to be so that it still generated a net power of 7300 W?4. A pot of water is boiling under one atmosphere of pressure. Assume that heat enters the pot only through its bottom, which is copper and rests on a heating element. In two minutes, the mass of water boiled away is m=5.0 kg. The radius of the pot bottom is R=6.0 cm and the thickness is L=2.0 mm. What is the temperature of the heating element in contact with the pot?