University Physics with Modern Physics (14th Edition)

14th Edition

ISBN: 9780321973610

Author: Hugh D. Young, Roger A. Freedman

Publisher: PEARSON

See similar textbooks

Concept explainers

Energy transfer

The flow of energy from one region to another region is referred to as energy transfer. Since energy is quantitative; it must be transferred to a body or a material to work or to heat the system.

Molar Specific Heat

Heat capacity is the amount of heat energy absorbed or released by a chemical substance per the change in temperature of that substance. The change in heat is also called enthalpy. The SI unit of heat capacity is Joules per Kelvin, which is (J K-1)

Thermal Properties of Matter

Thermal energy is described as one of the form of heat energy which flows from one body of higher temperature to the other with the lower temperature when these two bodies are placed in contact to each other. Heat is described as the form of energy which…

Videos

Textbook Question

Chapter 17, Problem 17.87P

Hot Air in a Physics Lecture. (a) A typical student listening attentively to a physics lecture has a heat output of 100 W. How much heat energy does a class of 140 physics students release into a lecture hall over the course of a 50-min lecture? (b) Assume that all the heat energy in part (a) is transferred to the 3200 m³ of air in the room. The air has specific heat 1020J/kg·K and density 1.20 kg/m³. If none of the heat escapes and the air conditioning system is off, how much will the temperature of the air in the room rise during the 50-min lecture? (c) If the class is taking an exam, the heat output per student rises to 280 W. What is the temperature rise during 50 min in this case?

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Chapter 17, Problem 17.86P

Chapter 17, Problem 17.88P

Students have asked these similar questions

Use the following information to answer the next question. Two mirrors meet an angle, a, of 105°. A ray of light is incident upon mirror A at an angle, i, of 42°. The ray of light reflects off mirror B and then enters water, as shown below: Incident ray at A Note: This diagram is not to scale. a Air (n = 1.00) Water (n = 1.34) 1) Determine the angle of refraction of the ray of light in the water. B

Hi can u please solve

6. Bending a lens in OpticStudio or OSLO. In either package, create a BK7 singlet lens of 10 mm semi-diameter and with 10 mm thickness. Set the wavelength to the (default) 0.55 microns and a single on-axis field point at infinite object distance. Set the image distance to 200 mm. Make the first surface the stop insure that the lens is fully filled (that is, that the entrance beam has a radius of 10 mm). Use the lens-maker's equation to calculate initial glass curvatures assuming you want a symmetric, bi-convex lens with an effective focal length of 200 mm. Get this working and examine the RMS spot size using the "Text" tab of the Spot Diagram analysis tab (OpticStudio) or the Spd command of the text widnow (OSLO). You should find the lens is far from diffraction limited, with a spot size of more than 100 microns. Now let's optimize this lens. In OpticStudio, create a default merit function optimizing on spot size.Then insert one extra line at the top of the merit function. Assign the…

Chapter 17 Solutions

University Physics with Modern Physics (14th Edition)

Ch. 17.1 - You put a thermometer in a pot of hot water and...Ch. 17.2 - Which of the following types of thermometers have...Ch. 17.3 - Prob. 17.3TYU Ch. 17.4 - In the bimetallic strip shown in Fig. 17.3a, metal...Ch. 17.5 - Prob. 17.5TYU Ch. 17.6 - You take a block of ice at 0C and add heat to it...Ch. 17.7 - A room has one wall made of concrete, one wall...Ch. 17 - Explain why it would not make sense to use a...Ch. 17 - If you heat the air inside a rigid, scaled...Ch. 17 - Many automobile engines have cast-iron cylinders...

Additional Science Textbook Solutions

Find more solutions based on key concepts

2. The three ropes in FIGURE EX6.2 are tied to a small, very light ring. Two of the ropes are anchored to wa...

Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)

Two culture media were inoculated with four different bacteria. After incubation, the following results were ob...

Microbiology: An Introduction

Choose the best answer to etch of the following. Explain your reasoning. Which of these stars is the most massi...

Cosmic Perspective Fundamentals

Calculate the molarity of each solution. a. 0.127 mol of sucrose in 655 mL of solution b. 0.205 mol of KNo3 in ...

Introductory Chemistry (6th Edition)

Modified True/False 9. A giant bacterium that is large enough to be seen without a microscope is Selenomonas.

Microbiology with Diseases by Body System (5th Edition)

A womans father has ornithine transcarbamylase deficiency (OTD), an X-linked recessive disorder producing menta...

Genetic Analysis: An Integrated Approach (3rd Edition)

Knowledge Booster

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.