Homework Help is Here – Start Your Trial Now!
Science
Physics
av (x) 1. For a conservative force F=), in which V(x) is the potential, using Newton's laws of motion, show that the sum of kinetic and potential energy is a constant. 2. How many joules of heat are generated by the brakes of a 1000 kg car when it is brought to rest from a speed of 50 km/h? if we use this amount of heat to heat 1.0 L of water from an initial temperature of 30 °C, estimate the final temperature assuming that the heat capacity of water is about 1 gal/mL (1 gal=4.184J).

av (x) 1. For a conservative force F=), in which V(x) is the potential, using Newton's laws of motion, show that the sum of kinetic and potential energy is a constant. 2. How many joules of heat are generated by the brakes of a 1000 kg car when it is brought to rest from a speed of 50 km/h? if we use this amount of heat to heat 1.0 L of water from an initial temperature of 30 °C, estimate the final temperature assuming that the heat capacity of water is about 1 gal/mL (1 gal=4.184J).

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
See similar textbooks
icon
Related questions
Question

Hello, 

Can you please answer these 3 questions for me? Thank you!

av(x) 1. For a conservative force F=-x), in which V(x) is the potential, using Newton's laws of motion, show that the sum of kinetic and potential energy is a constant. 2. How many joules of heat are generated by the brakes of a 1000 kg car when it is brought to rest from a speed of 50 km/h? If we use this amount of heat to heat 1.0 L of water from an initial temperature of 30 °C, estimate the final temperature assuming that the heat capacity of water is about 1 gal/mL (1 gal=4.184 J). 3. Use the relation g=-p gxto show that: (a) The work done in an isothermal expansion of N moles of an ideal gas from initial volume Vi to the final volume yfis: Work=-NRT Inlvf/Vi). (b) For 1 mol of an ideal gas, calculate the work done in an isothermal expansion of 1 mol from Vi=10.0 L to xf=20.0 L at temperature T = 350 K.
Transcribed Image Text:av(x) 1. For a conservative force F=-x), in which V(x) is the potential, using Newton's laws of motion, show that the sum of kinetic and potential energy is a constant. 2. How many joules of heat are generated by the brakes of a 1000 kg car when it is brought to rest from a speed of 50 km/h? If we use this amount of heat to heat 1.0 L of water from an initial temperature of 30 °C, estimate the final temperature assuming that the heat capacity of water is about 1 gal/mL (1 gal=4.184 J). 3. Use the relation g=-p gxto show that: (a) The work done in an isothermal expansion of N moles of an ideal gas from initial volume Vi to the final volume yfis: Work=-NRT Inlvf/Vi). (b) For 1 mol of an ideal gas, calculate the work done in an isothermal expansion of 1 mol from Vi=10.0 L to xf=20.0 L at temperature T = 350 K.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps with 3 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
First law of thermodynamics
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.
Recommended textbooks for you
College Physics
College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
University Physics (14th Edition)
University Physics (14th Edition)
Physics
ISBN:
9780133969290
Author:
Hugh D. Young, Roger A. Freedman
Publisher:
PEARSON
Introduction To Quantum Mechanics
Introduction To Quantum Mechanics
Physics
ISBN:
9781107189638
Author:
Griffiths, David J., Schroeter, Darrell F.
Publisher:
Cambridge University Press
Physics for Scientists and Engineers
Physics for Scientists and Engineers
Physics
ISBN:
9781337553278
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:
9780321820464
Author:
Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:
Addison-Wesley
College Physics: A Strategic Approach (4th Editio…
College Physics: A Strategic Approach (4th Editio…
Physics
ISBN:
9780134609034
Author:
Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:
PEARSON
SEE MORE TEXTBOOKS