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- At 25.0 m below the surface of the sea, where the temperature is 5.00C, a diver exhales an air bubble having a volume of 1.00 cm3. If the surface temperature of the sea is 20.0C, what is the volume of the bubble just before it breaks the surface?Two concrete spans that form a bridge of length L are placed end to end so that no room is allowed for expansion (Fig. P16.63a). If a temperature increase of T occurs, what is the height y to which the spans rise when they buckle (Fig. P16.63b)?The outer diameter of a glass jar and the inner diameter of its iron lid are both 760 mmmm at room temperature (20.0 ∘C). What will be the size of the mismatch between the lid and the jar if the lid is briefly held under hot water until its temperature rises to 62.5 ∘C, without changing the temperature of the glass? Use the coefficient of linear expansion for iron α= 1.2×10^−5 K^−1. Express answer in millimeters.
- Given this equation for converting temperature from Celsius (c) to Fahrenheit (f) is C = [5(f – 32)]/9, what is the Celsius temp when Fahrenheit is 104 degrees?-A piece of stone weighs 0.05 pounds. When it is submerged in a graduated cylinder containing 50 ml of water, the level rises to 60 ml. What is the density of stone in g/ml. Ans 2.27 g/ml -The temperature at which mercury freezes is -35°C. What temperature in degrees Fahrenheit at which a mercury thermometer cannot be used? Ans. -31 °FSuppose a 500-mL beaker is filled to the brim with ethyl alcohol at a temperature of 5.00°C. You may assume the beaker is made of tempered glass, and has effectively zero thermal expansion. What volume, in milliliters, will overflow the beaker when its temperature reaches 24°C? The coefficient of volume expansion for ethyl alcohol is 1.100 × 10-3 /°C. and what volume of water, in milliliters, will overflow under the same conditions? The coefficient of volume expansion for water is 2.10 × 10-4 /°C.
- Suppose a human body's core internal temperature is 37.0°C, the skin temperature is 34.0°C, the thickness of the tissues between averages 0.85 cm, and the surface area is 1.42 m2. Calculate the rate of heat conduction, in watts, out of the human body.Numeric : A numeric value is expected and not an expression.Q/Δt = __________________________________________A glass window in a house has an area of 0.67 m^2 and a thickness of 2.4 mm. The temperature inside the house is 21 C, and the outside temperature is 0 C. How much heat is lost through the window in 1 hour (3600 s) due to conduction? Use 1.0 W/(m x C) for the thermal conductivity of the glass. How much heat is lsot through the window in 1 hour (3600 s) due to raditaion? ( assume the temperature of the rntire glass is 21 C for this probelem). Which mode of heat transfer (condutciton vs. raditiaon) accounts for the greater amount of heat loss?For the human body, what is the rate of heat transfer by conduction through the body’s tissue with the following conditions: the tissue thickness is 3.00 cm, the change in temperature is 2.00C, and the skin area is 1.50 m2. How does this compare with the average heat transfer rate to the body resulting from an energy intake of about 2400 kcal per day? (No exercise is included.)
- (I) (a) 18° below zero on the Celsius scale is what Fahrenheittemperature? (b) 18° below zero on the Fahrenheit scale iswhat Celsius temperature?In 2000, a gargantuan iceberg broke away from the Ross Ice Sheet in Antarctica. It was approximately a rectangle with dimensions 295 km295 km long, 37.0 km37.0 km wide, and 250.0 m250.0 m thick. What is the mass of this iceberg, given that the density of ice is 917 kg/m3917 kg/m3? How much heat transfer ?Q in joules is needed to melt the iceberg? Assume that the temperature of the iceberg is uniform at 0∘C.0∘C. The latent heat of fusion for water is 334 kJ/kg. How many years would it take sunlight alone to melt ice this thick if the ice absorbs an average of 113 W/m2,113 W/m2, 12.0 h12.0 h per day?If the pressure in a car tire is 2.0 atm at 27°C, what will be the pressure if the temperature warms to 57°C? Assume that the volume of the tire remains constant. A patient with heat stroke has a temperature of 105.8 0 What does this read on a Celsius thermometer?
