On a very hot day, it’s possible to cook an egg on the hood of a car. Would you select a black car or a white car on which to cook your egg? Why?

Scientists experiment with a balloon near a Himalayan fresh water lake at an altitude of 5000 m where atmospheric pressure is half of that at sea level. The temperature of the lake is uniform with depth and identical to the air at the surface of the lake. To what depth should a balloon be taken under the lake to reduce its volume by a factor of 4?   answer: 20m

You are standing in Death Valley, California on a summer afternoon, and the temperature is well above 100 degrees.  You place a piece of asphalt (Specific Heat = 0.915 J/g°C) and a piece of concrete (Specific Heat = 0.879 J/g°C) on the ground next to one another.  If you were to crack an egg onto each surface, which one would be more likely to fry the egg completely?  Please explain.

The bottom of a circular, aluminum pot has a radius of 8cm and a thickness of 1cm. The temperature of the stove top is 120 degrees celsius and the temperature of the pot initially is 20 degrees celsius. What is the rate at which energy is transferred through the bottom of the pot?

A rock of mass 0.332 kg falls from rest from a height of 15.1 m into a pail containing 0.332 kg of water. The rock and water have the same initial temperature. The specific heat capacity of the rock is 1940 J/(kg ·C°). Ignore the heat absorbed by the pail itself, and determine the rise in temperature of the rock and water in Celsius degrees.

it is important not to undercook chicken, otherwise you might get very sick. The inside of the chicken has to be at a certain temperature (75 C or 165 F) to make sure it is safe. Why can’t you just wait until the outside of the chicken is at this temperature? Why isn’t the entire chicken at the same temperature while it is being cooked?

When heating water for cooking food, it is common to use an electric or natural-gas cooktop. A metal pot with radius r=0.11m is filled with water to a depth of h=0.16m and heated on such a cooktop. The water is initially at a temperature of T0=25∘C.  a. Enter an expression for the amount of heat required to raise the temperature of the water to its boiling point of Tv=100∘C in terms of r, h, T0, Tv, ρ and c.  b. Calculate the amount of heat, in joules, required to raise the temperature of the water to its boiling point. Water has a density of ρ=1.000×103kg/m3 and a specific heat of c=4.186×103J/(kg⋅∘C) c. According to the U.S. Energy Information Administration, the average cost of electricity in the U.S. is about $0.10 per kilowatt-hour, or $0.028 per megajoule of electrical energy. Assuming all the electrical energy goes into heating the water on the cooktop, how much does it cost, in dollars, to heat the pot of water with electricity? Ignore the heat required to raise the temperature…

How hot is the air in the top (crown) of a hot air balloon? Information from Ballooning: The Complete Guide to Riding the Winds, by Wirth and Young (Random House), claims that the air in the crown should be an average of 100°C for a balloon to be in a state of equilibrium. However, the temperature does not need to be exactly 100°C. What is a reasonable and safe range of temperatures? This range may vary with the size and (decorative) shape of the balloon. All balloons have a temperature gauge in the crown. Suppose that 58 readings (for a balloon in equilibrium) gave a mean temperature of x = 97°C. For this balloon, ? ≈ 22°C. (a) Compute a 95% confidence interval for the average temperature at which this balloon will be in a steady-state equilibrium. (Round your answers to one decimal place.) lower limit     _______ °C upper limit     _______ °C