You put a thermometer in a pot of hot water and record the reading. What temperature have you recorded? (i) The temperature of the water; (ii) the temperature of the thermometer; (iii) an equal average of the temperatures of the water and thermometer; (iv) a weighted average of the temperatures of the water and thermometer, with more emphasis on the temperature of the water; (v) a weighted average of the water and thermometer, with more emphasis on the temperature of the thermometer.
Learn your wayIncludes step-by-step video
Chapter 17 Solutions
University Physics with Modern Physics (14th Edition)
Additional Science Textbook Solutions
Introduction to Electrodynamics
University Physics (14th Edition)
Essential University Physics (3rd Edition)
Tutorials in Introductory Physics
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
Applied Physics (11th Edition)
- According to Newton's law of cooling, the temperature of an object changes at a rate proportional to the difference in temperature between the object and the outside medium. If an object whose temperature is 70°F is placed in a medium whose temperature is 20 and is found to be 40" after 3 min, what will its temperature be after 6 min?arrow_forwardAccording to Newton’s law of cooling, the rate at which a substance cools in air is directly proportional to the difference between the temperature of the substance and that of air. If the temperature of the air is 30° and the substance cools from 100° to 70° in 15 minutes, how long will it take to cool 100° to 50°? 33.59 min 43.5 min 35.39 min 45.30 minarrow_forwardPertaining to Lab 3 Q1 a and b, calculate how much radiation is emitted by the Sun and the Earth (assuming the Sun's average surface temperature is 6000K and the Earth's average temperature is 300K). Please put the entire number that you get as your answer and do not write it in scientific notation.arrow_forward
- When you step from the shade into the sunlight, the Sun’s heat is as evident as the heat from hot coals in a fireplace in an otherwise cold room. You feel the Sun’s heat not because of its high temperature (higher temperatures can be found in some welder’s torches), but because the Sun is big. Which do you estimate is larger, the Sun’s radius or the distance between the Moon and Earth? Check your answer in the list of physical data on the inside back cover. Do you find your answer surprising?arrow_forwardAn incandescent light bulb with a surface area of 0.0131 m2 and an emissivity of 0.95 has a surface temperature of 185°C. What is the rate of thermal radiation emitted from the bulb [round your final answer to one decimal place]?arrow_forwardA piece of aluminum whose mass is 10 kg has a specific heat capacity of 900 J/kg×°C and is warmed by Coco Martin so that its temperature increases by 5.0 C°. How much heat was transferred into the aluminum? 8.8 x 105 J 2.0 x 105 J 2.9 x 104 J 5.9 x 104 Jarrow_forward
- ___ is a unit of length, roughly the distance from Earth to the Sun. A) Light years B) Astronomical unit C) Kelvin D) Joulearrow_forwardThe density or gasoline is 7.30 102 kg/m3 at 0C. Its average coefficient of volume expansion is 9.60 104(C)1 and note that 1.00 gal = 0.003 80 m3. (a) Calculate the mass of 10.0 gal of gas at 0C. (b) If 1.000 m3 of gasoline at 0C is warmed by 20.0C, calculate its new volume. (c) Using the answer to part (b), calculate the density of gasoline at 20.0C. (d) Calculate the mass of 10.0 gal of gas at 20.0C. (e) How many extra kilograms of gasoline would you get if you bought 10.0 gal of gasoline at 0C rather than at 20.0C from a pump that is not temperature compensated?arrow_forwardThe density or gasoline is 7.30 102 kg/m3 at 0C. Its average coefficient of volume expansion is 9.60 104(C)1 and note that 1.00 gal = 0.003 80 m3. (a) Calculate the mass of 10.0 gal of gas at 0C. (b) If 1.000 m3 of gasoline at 0C is warmed by 20.0C, calculate its new volume. (c) Using the answer to part (b), calculate the density of gasoline at 20.0C. (d) Calculate the mass of 10.0 gal of gas at 20.0C. (e) How many extra kilograms of gasoline would you get if you bought 10.0 gal of gasoline at 0C rather than at 20.0C from a pump that is not temperature compensated?arrow_forward
- A particular pair of human lungs have a volume of 1.8 L when inflated. At this volume, the temperature inside the lungs is 98.7°F. If the temperature of the air outside the lung is 43.2°F, what volume of cooler outside air is being inhaled and warmed? Round your answer to 2 decimal places.arrow_forwardA 0.500 kg aluminum pan on a stove is used to heat 0.250 liters of water from 20.0 C to 80.0 C. How much heat is required? The specific heat of water is 4,816 J/ kg C , and the density of water is 1.00 kg/liter.arrow_forwardAfter sitting out of a refrigerator for a while, a turkey at room temperature (72^\circ72∘F) is placed into an oven. The oven temperature is 315^\circ315∘F. Newton's Law of Heating explains that the temperature of the turkey will increase proportionally to the difference between the temperature of the turkey and the temperature of the oven, as given by the formula below: T=T_a+(T_0-T_a)e^{-kt}T=Ta+(T0−Ta)e−kt T_a=Ta= the temperature surrounding the objectT_0=T0= the initial temperature of the objectt=t= the time in hoursT=T= the temperature of the object after tt hoursk=k= decay constant The turkey reaches the temperature of 136^\circ136∘F after 2 hours. Using this information, find the value of kk, to the nearest thousandth. Use the resulting equation to determine the Fahrenheit temperature of the turkey, to the nearest degree, after 6 hours. Enter only the final temperature into the input box.arrow_forward
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningCollege PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningCollege PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning