On his honeymoon, James Joule attempted to explore the relationships between various forms ofenergy by measuring the rise of temperature of water which had fallen down a waterfall on MountBlanc. What maximum temperature rise would one expect for a waterfall with a vertical drop of20 m?A) 0.053 CB) 0.064 C°C) 0.047 CD) 0.071 C

At the water falls, the water will fall from a certain height it would convert its potential energy…

Answered: On his honeymoon, James Joule attempted…

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter17: Energy In Thermal Processes: The First Law Of Thermodynamics

Section: Chapter Questions

Problem 8OQ

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On a very cold day in upstate New York, the temperature is -25C, which is equivalent to what Fahrenheit temperature? (a) -46F (b) -77F (c) 18F (d) -25F (e) -13F
The mass of a hot-air balloon and its cargo (not including the air inside) is 200 kg. The air outside is at 10.0C and 101 kPa. The volume of the balloon is 400 m3. To what temperature must the air in the balloon be warmed before the balloon will lift off? (Air density at 10.0C is 1.244 kg/m3.)
An ice-cube tray is filled with 75.0 g of water. After the filled tray reaches an equilibrium temperature 20.0C, it is placed in a freezer set at 8.00C to make ice cubes. (a) Describe the processes that occur as energy is being removed from the water to make ice. (b) Calculate the energy that must be removed from the water to make ice cubes at 8.00C.
A thermopane window consists of two glass panes, each 0.50 cm thick, with a 1.0-cm-thick sealed layer of air in between. (a) If the inside surface temperature is 23C and the outside surface temperature is 0.0C, determine the rate of energy transfer through 1.0 m2 of the window. (b) Compare your answer to (a) with the rate of energy transfer through 1.0 m2 of a single 1.0-cm-thick pane of glass. Disregard surface air layers.
The density of gasoline is 730 kg/m3 at 0C. Its average coefficient of volume expansion is 9.60 104 (C)1. Assume 1.00 gal of gasoline occupies 0.003 80 m3. How many extra kilograms of gasoline would you receive if you bought 10.0 gal of gasoline at 0C rather than at 20.0C from a pump that is not temperature compensated?
An ice-cube tray is filled with 75.0 g of water. After the filled tray reaches an equilibrium temperature of 20.0C, it is placed in a freezer set at 8.00C to make ice cubes. (a) Describe the processes that occur as energy is being removed from the water to make ice. (b) Calculate the energy that must be removed from the water to make ice cubes at 8.00C.
On a cold winter day. you buy roasted chestnuts from a street vendor. Into the pocket of your down parka you put the change he gives you: coins constituting 9.00 g of copper at 12.0C. Your pocket already contains 14.0 g of silver coins at 30.0C. A short time later the temperature of the copper coins is 4.00C and is increasing at a rate of 0.500C/s. At this time, (a) what is the temperature of the silver coins and (b) at what rate is it changing?
A steam pipe is covered with 1.50-cm-thick insulating material of thermal conductivity 0.200 cal/cm C s. How much energy is lost every second when the steam is at 200.C and the surrounding air is at 20.0C? The pipe has a circumference of 800. cm and a length of 50.0 m. Neglect losses through the ends of the pipe.
The Fahrenheit scale remains useful in part due to personal experience with temperature. For example, the average temperature range in a typical midlatitude city such as Gdansk, Poland (formerly Dansk, where Fahrenheit was born), is 25F to 78F over a year. a. Find the temperature range in Gdansk, Poland, in degrees Celsius and in kelvins. b. Many people say that 0F is a very cold day and 100F is an unpleasantly hot day. Convert these temperatures to the Celsius and Kelvin scales. c.When someone has an infection, her body may respond with a fever. A high fever (T 105F) can damage the brain. Convert this temperature to degrees Celsius.
In a period of 1.00 s, 5.00 1023 nitrogen molecules strike a wall with an area of 8.00 cm2. Assume the molecules move with a speed of 300 m/s and strike the wall head-on in elastic collisions. What is the pressure exerted on the wall? Note: The mass of one N2 molecule is 4.65 1026 kg.
A copper rod and an aluminum rod of equal diameter are joined end to end in good thermal contact. The temperature of the free end of the copper rod is held constant at 100.C and that of the far end of the aluminum rod is held at 0C. If the copper rod is 0.15 m long, what must be the length of the aluminum rod so that the temperature at the junction is 50.C?

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