College Physics
1st Edition
ISBN: 9781938168000
Author: Paul Peter Urone, Roger Hinrichs
Publisher: OpenStax College
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Chapter 14, Problem 5CQ
The brakes in a car increase in temperature by
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Chapter 14 Solutions
College Physics
Ch. 14 - How is heat transfer related to temperature?Ch. 14 - Describe a situation in which heat transfer...Ch. 14 - When heal transfers into a system, is the energy...Ch. 14 - What three factors affect the heat transfer that...Ch. 14 - The brakes in a car increase in temperature by T...Ch. 14 - Heat transfer can cause temperature and phase...Ch. 14 - How does the latent heat of fusion of water help...Ch. 14 - What is me temperature of ice right after it is...Ch. 14 - If you place 0C ice into 0C water in an insulated...Ch. 14 - What effect does condensation on a glass of ice...
Ch. 14 - In my humid climates where there are numerous...Ch. 14 - In winters, if is often warmer in San Francisco...Ch. 14 - Putting a lid on a boiling pot greatly reduces the...Ch. 14 - Freeze-dried toads have been dehydrated in a...Ch. 14 - When still air cools by radiating at night, it is...Ch. 14 - In a physics classroom demonstration, an...Ch. 14 - What are the main methods of heat transfer front...Ch. 14 - Some electric sieves have a flat ceramic surface...Ch. 14 - Loosefitting white clothing covering most at the...Ch. 14 - One way to make a fireplace more energy efficient...Ch. 14 - On cold, clear nights horses will sleep under the...Ch. 14 - When watching a daytime circus in a large,...Ch. 14 - Satellites designed to observe me radiation from...Ch. 14 - Why are cloudy nights generally warmer than clear...Ch. 14 - Why are thermometers that are used in weather...Ch. 14 - On average, would Earth be warmer or cooler...Ch. 14 - On a hot day, the temperature of an 80,000L...Ch. 14 - Show that 1cal/gC=1kcal/kgC.Ch. 14 - To sterilize a 50.0g glass baby bottle, we must...Ch. 14 - The same heat transfer into identical masses of...Ch. 14 - Rubbing your hands together warms them by...Ch. 14 - A 0.250kg block at a pure material is heated from...Ch. 14 - Suppose identical amounts of heat transfer into...Ch. 14 - (a) The number of kilocalories in food is...Ch. 14 - Following Vigorous exercise, the body temperature...Ch. 14 - Even when shut down after a period of normal use,...Ch. 14 - How much heat transfer (in kilocalories) is...Ch. 14 - A bag containing 0C ice is much more effective in...Ch. 14 - (a) How much heat transfer is required to raise...Ch. 14 - The formation of condensation on a glass of ice...Ch. 14 - On a trip, you notice that a 3.50kg bag of ice...Ch. 14 - On a certain dry sunny day, a swimming pool’s...Ch. 14 - (a) How much heat transfer is necessary to raise...Ch. 14 - In 1986, a gargantuan iceberg broke away from the...Ch. 14 - How many grams of coffee must evaporate from 350 g...Ch. 14 - (a) It is difficult to extinguish a fire on a...Ch. 14 - The energy released from condensation in...Ch. 14 - To help prevent from damage, 4.00 kg at 0C water...Ch. 14 - A 0.250kg aluminum bowl holding 0.800 kg of soup...Ch. 14 - A 0.0500kg ice cube at 30.0C is placed in 0.400 kg...Ch. 14 - If you pour 0.0100 kg of 20.0C water onto a 1.20kg...Ch. 14 - Indigenous people sometimes cook in watertight...Ch. 14 - What would be the final temperature of the pan and...Ch. 14 - In some countries, liquid nitrogen is used on...Ch. 14 - Some gun fanciers make their own bullets, which...Ch. 14 - (a) Calculate the rate of heat conduction through...Ch. 14 - The rate of heat conduction out of a window on a...Ch. 14 - Calculate the rate of heat conduction out of the...Ch. 14 - Suppose you stand with one foot on ceramic...Ch. 14 - A man consumes 3000 kcal of food in one day....Ch. 14 - (a) A firewalker runs across a bed of hot coals...Ch. 14 - (a) What is the rate of heat conduction through...Ch. 14 - A walrus transfers energy by conduction through...Ch. 14 - Compare the rate of heat conduction through a...Ch. 14 - Suppose a person is covered head to foot by wool...Ch. 14 - Some stove tops are smooth ceramic for easy...Ch. 14 - One easy way to reduce heating (and cooling) costs...Ch. 14 - (a) Calculate the rate of heat conduction through...Ch. 14 - Many decisions are made on the basis of the...Ch. 14 - For the human body, what is the rate of heat...Ch. 14 - At what wind speed does 10C air cause the same...Ch. 14 - At what temperature does still air cause the same...Ch. 14 - The “steam” above a freshly made cup of instant...Ch. 14 - (a) How many kilograms of water must evaporate...Ch. 14 - On a hot dry day, evaporation from a lake has just...Ch. 14 - One winter day, the climate control system of a...Ch. 14 - The Kilauea volcano in Hawaii is the world’s most...Ch. 14 - During heavy exercise, the body pumps 2.00 L of...Ch. 14 - A person inhales and exhales 2.00 L of 37.0C air,...Ch. 14 - A glass coffee pot has a circular bottom with a...Ch. 14 - At what net rate does heat radiate from a 275m2...Ch. 14 - (a) Cherry-red embers in a fireplace are at 850C...Ch. 14 - Radiation makes it impossible to stand close to a...Ch. 14 - (a) Calculate the rate of heat transfer by...Ch. 14 - Find the net rate of heat transfer by radiation...Ch. 14 - Suppose you walk into a sauna that has an ambient...Ch. 14 - Thermography is a technique for measuring radiant...Ch. 14 - The Sun radiates like a perfect black body with an...Ch. 14 - A large body of lava from a volcano has stopped...Ch. 14 - Calculate the temperature the entire sky would...Ch. 14 - (a) A shirtless rider under a circus tent feels...Ch. 14 - Integrated Concepts One 30.0C day the relative...Ch. 14 - Integrated Concepts Large meteors sometimes strike...Ch. 14 - Integrated Concepts Frozen waste from airplane...Ch. 14 - €69. Integrated Concepts (a) A large electrical...Ch. 14 - Integrated Concepts (a) Suppose you start a...Ch. 14 - Integrated Concepts A 76.0-kg person suffering...Ch. 14 - Integrated Concepts In certain large geographic...Ch. 14 - Integrated Concepts Heat transfers from your lungs...Ch. 14 - Integrated Concepts (a) What is the temperature...Ch. 14 - Integrated Concepts Hot air rises because it has...Ch. 14 - Unreasonable Results (a) What is the temperature...Ch. 14 - Unreasonable Results A slightly deranged Arctic...Ch. 14 - Unreasonable Results (a) Calculate the rate of...Ch. 14 - Unreasonable Results A meteorite 1.20 cm in...Ch. 14 - Construct Your Own Problem Consider a new model of...Ch. 14 - Construct Your Own Problem Consider a person...
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- A 0.250-kg aluminum bowl holding 0.800 kg of soup at 25.0 is placed in a freezer. What is the final temperature if 388 kJ of energy is transferred from the bowl and soup, assuming the soup's thermal properties are the same as that of water?arrow_forwardIn a common demonstration, a bottle is heated and stoppered with a hard-boiled egg that's a little bigger than the bottle's neck. When the bottle is cooled, the pressure difference between inside and outside forces the egg into the bottle. Suppose the bottle has a volume of 0.500 L and the temperature inside it is raised to 80.0 while the pressure remains constant at 1.00 atm because the bottle is open. (a) How many moles of air are inside? (b) Now the egg is put in place, sealing the bottle. What is the gauge pressure inside after the air cools back to the ambient temperature of 25 but before the egg is forced into the bottle ?arrow_forwardThe brakes in a car increase in temperature by T when bringing the car to rest from a speed v. How much greater would T be if the car initially had twice the speed? You may assume the car stops fast enough that no heat transfers out of the brakes.arrow_forward
- (a) The number of kilocalories in food is determined by calorimetry techniques in which the food is burned and the amount of heat transfer is measured. How many kilocalories per gram ale there in a 5.00-g peanut if the energy from burning it is transferred to 0. 500 kg of water held in a 0.100-kg aluminum cup, causing a 54.9- temperature increase? Assume the process takes place in an ideal calorimeter, in other words a perfectly insulated container. (b) Compare your answer to the following labeling information found on a package of dry roasted peanuts: a sewing of 33 g contains 200 calories. Comment on whether the values are consistent.arrow_forwardRubbing your hands together warms them by converting work into thermal energy. If a woman rubs her hands back and forth for a total of 20 rubs, at a distance of 7.50 cm per nub, and with an average frictional force of 40.0 N, what is the temperature increase? The mass of tissues warned is only 0.100 kg, mostly in the palms and fingers.arrow_forwardCompare the charge in internal energy of an ideal gas for a quasi-static adiabatic expansion with that for a quasi-static isothermal expansion. What happens to the temperature of an ideal gas in an adiabatic expansion?arrow_forward
- The insulated cylinder shown below is closed at both ends and contains an insulating piston that is flee to move on frictionless bearings. The piston divides the chamber into two compartments containing gases A and B. Originally, each compartment has a volume of 5.0102 m3 and contains a monatomic ideal gas at a temperature of and a pressure of 1.0 atm. (a) How many moles of gas are in each compartment? (b) Heat Q is slowly added to A so that it expands and B is compressed until the pressure of both gases is 3.0 atm. Use the fact that the compression of B is adiabatic to determine the final volume of both gases. (c) What are their final temperatures? (d) What is the value of Q?arrow_forwardWhy don't we operate ocean liners by extracting heat from the ocean or operate airplanes by extracting heat from the atmosphere?arrow_forwardOne mole of an ideal gas doubles its volume in a reversible isothermal expansion. (a) What is the change in entropy of the gas? (b) If 1500 J of heat are added in this process, what is the temperature of the gas?arrow_forward
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