Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN: 9781337399128
Author: Russell E. Smith
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
thumb_up100%
Chapter 2, Problem 1RQ
All physical objects are composed of __________.
- a. substances
- b. matter
- c. neutrons
- d. ketons
Expert Solution & Answer
To determine
All physical objects are composed of __________.
Explanation of Solution
Fundamental constituents that are named as elements are combined together to form a matter. The matter constituents are combined together to form a physical object. The physical object is may be wood, iron, cloth, solid, gas, and liquid. Hence, all physical components are made up of matter.
Thus, the correct answer is “option b. matter”.
Want to see more full solutions like this?
Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
When heat energy transfers through a liquid
or gas, what is it called?
Select one:
a. Conduction
b. Convection
c. Radiation
d. Induction
Mechanical energy
What happens mechanically?
Thermal conductivity is the capacity of a material to transfer heat energy through itself by thermal movement only (no mass transfer).
true or false
Chapter 2 Solutions
Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
Ch. 2 - All physical objects are composed of __________....Ch. 2 - What is an atom?Ch. 2 - Which of the following is a part of the atom? a....Ch. 2 - What is static electricity?Ch. 2 - Name three ways electricity can be produced.Ch. 2 - What part do protons and electrons play in the...Ch. 2 - Which of the following is the simplest atom that...Ch. 2 - What are the four most important characteristics...Ch. 2 - What is electromotive force?Ch. 2 - Electromotive force is commonly measured in _____....
Ch. 2 - What is current?Ch. 2 - How is current measured? a. amperes b. ohms c....Ch. 2 - What is resistance?Ch. 2 - How is resistance commonly measured? a. amperes b....Ch. 2 - What is electrical power?Ch. 2 - How is electrical power commonly measured? a....Ch. 2 - Where do electrons exist in an atom, and what is...Ch. 2 - True or False: All atoms tend to lose electrons.Ch. 2 - State the law of electric charges.Ch. 2 - What is a proton? Where does it normally exist in...Ch. 2 - Describe briefly the method a dry cell battery...Ch. 2 - What is a conductor?Ch. 2 - Which of the following is the best conductor? a....Ch. 2 - What is an insulator?Ch. 2 - Which of the following is the best insulator? a....Ch. 2 - Why do metals make the best conductors?Ch. 2 - How do electric utility companies charge customers...Ch. 2 - What is the meaning of SEER when used in...Ch. 2 - State Ohms law.Ch. 2 - True or False: Ohms law applies to all types of...Ch. 2 - What is the ampere draw of a 5000-watt electric...Ch. 2 - What is the resistance of the heating element of...Ch. 2 - What is the voltage of a small electric heater if...Ch. 2 - What is the Btu/hour output of an electric heater...Ch. 2 - What is the kilowatt output of an electric heater...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- What is the effect of acceleration on a beam of light shone horizontally at one wall?arrow_forward1. What is geothermal energy? Where can geothermal energy be found? Mention different sources of geothermal energy. What are the uses of geothermal energy?arrow_forward4. Describe each of the three methods of heat transfer, in your own words. Make sure to explain how you can tell that that kind of heat transfer is happening.a. Conductionb. Convectionc. Radiationarrow_forward
- 12 According to 1st law of thermodynamics Select one: O heat and work are convertible mass and energy are equal None mass and light are convertible O mass and energy are convertiblearrow_forwardWhat is the name of the following statement: “When two systems are in thermal equilibrium with a third system, then they are in thermal equilibrium with each other”? First Law of Thermodynamics Second Law of Thermodynamics Mechanical equivalent of heat Zeroth Law of Thermodynamics Thermal expansion of solidsarrow_forwardThe Biot number less than 0.1 indicates the following in terms of temperature distribution in one direction in the solid? a. Its heat transfer coefficient is quite small. b. The temperature increase in that direction does not change much due to heat generation. c. The temperature change in that direction is negligible. D. None. e. The temperature drop in that direction is considerably higher due to the high convection on the solid surface.arrow_forward
- 26. The transfer of energy from molecule to molecule is called A. deposition B. entropy C. conduction D. radiation E. convectionarrow_forwardQUESTION 2 The three lowest energy levels of a hydrogen atom are -13.6 eV, -3.4 eV, and -1.5 eV. Assume that there is only one way to occupy any one of these levels. Calculate the relative probability that a hydrogen atom in thermal equilibrium in a star, at temperature T = 9493 K, is in its first excited state (at -3.4 eV) relative to its ground state (at -13.6 eV). Write your answer in exponential form. Recall that Boltzmann's constant can be written as 8.617 x 10-5 eV K-1arrow_forwardA metal spoon and a wooden spoon are left overnight in a room. Why do we feel colder when we touch the metal spoon than when we touch the wooden one? a. Since metals usually have a lower heat capacity than non-metals, the metal spoon loose more heat to the room and consequently has a lower temperature b. Metals release heat faster than non-metals because of their higher thermal conductivity c. This is merely psychological since we are conditioned to think of metals as “cold” d. Metals absorb heat faster than non-metals because of their higher thermal conductivityarrow_forward
- Identify if the statements are true or false. I. For a positively charged q1 and negatively charged q2, the force will always be positive regardless of the signs.II. Thus, in calculus, the signs of the charges do not affect the work or force between them. a. Both statements are true b. Both statements are false c. Statement I is true, the latter being false d. Statement I is false, the latter being truearrow_forwardNonearrow_forwardWhich of the following is not a true statement about heat transfer? a. Whenever the temperature of something changes, a transfer of heat has occurred. b. Conduction is the transfer of heat by infrared rays. c. Light bulbs are examples of heat transfer by radiation. d. Convection occurs when a hot object moves to an area with less heat.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Refrigeration and Air Conditioning Technology (Mi...Mechanical EngineeringISBN:9781305578296Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill JohnsonPublisher:Cengage Learning
Refrigeration and Air Conditioning Technology (Mi...
Mechanical Engineering
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:Cengage Learning
Heat Transfer [Conduction, Convection, and Radiation]; Author: Mike Sammartano;https://www.youtube.com/watch?v=kNZi12OV9Xc;License: Standard youtube license