• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Density, Mass and Surface Area
Density, Mass and Surface Area

DCE Sample Paper 6 - Entrance
DCE Sample Paper 6 - Entrance

Document
Document

2000 - Year 11
2000 - Year 11

Newton`s Laws and Forces APS 2 longer with pix
Newton`s Laws and Forces APS 2 longer with pix

Chapter 17 Concept tests
Chapter 17 Concept tests

Physics 101: Lecture 9 Work and Kinetic Energy
Physics 101: Lecture 9 Work and Kinetic Energy

... -mk mg d = ½ m (vf2 – v02) -mk g d = ½ (0 – v02) mk g d = ½ v02 d = ½ v02 / mk g ...
Document
Document

Chapter 4 Forces and Newton’s Laws of Motion continued
Chapter 4 Forces and Newton’s Laws of Motion continued

File
File

... But when I think how infinitely little is all that I have done I cannot feel pride; I only see the great kindness of my scientific comrades, and of all my friends in crediting me for so much. One word characterises the most strenuous of the efforts for the advancement of science that I have made per ...
Mass Spectrometry: Quadrupole Mass Filter Mass Spectrometer
Mass Spectrometry: Quadrupole Mass Filter Mass Spectrometer

Chapter 23 Energy is conserved, so the change in potential energy
Chapter 23 Energy is conserved, so the change in potential energy

... 4. By the work energy theorem, the total work done, by the external force and the electric field together, is the change in kinetic energy. The work done by the electric field is given by Eq. 232b. Wexternal  Welectric  KE final  KEinitial  Wexternal  q Vb  Va   KEfinal  ...
Determining Krypton Concentration is Xenon
Determining Krypton Concentration is Xenon

AP Physics 2: Algebra-Based 2016 Free
AP Physics 2: Algebra-Based 2016 Free

Sample pages 1 PDF
Sample pages 1 PDF

M2 Not-Formula Book
M2 Not-Formula Book

... Note: In vertical circular motion, often the only forces acting are the weight (always pulling vertically downwards) and whatever force pulls towards the centre to cause circular motion. This means that there is no tangential force as such, but there will be a (variable) component of the weight whic ...
6.6
6.6

Dalton`s Atomic Theory Discovery of Electron Properties of Cathode
Dalton`s Atomic Theory Discovery of Electron Properties of Cathode

... Postulates of Bohr’s Atomic Model The main postulates of Bohr’s Model are given below: 1. Electrons revolve around the nucleus in a fixed orbit. 2. As long as electron revolves in a fixed orbit it does not emit and absorb energy. Hence energy of electron remains constant. 3. The orbit nearest to the ...
Chap 3 Atomic Structure
Chap 3 Atomic Structure

... Dalton’s Atomic Theory The important postulates of Dalton’s atomic theory are: 1. All elements are composed of atoms. Atom is too small so that it could not be divided into further simpler components. 2. Atom cannot be destroyed or produced. 3. Atoms of an element are similar in all respects. They h ...
Torque - Liberty High School
Torque - Liberty High School

... Sally, an astrology buff, claims that the position of the planet Jupiter influences events in her life. She surmises this is due to its gravitational pull. Joe scoffs at Sally and says “your Labrador Retriever exerts more gravitational pull on your body than the planet Jupiter does”. Is Joe correct? ...
Mass and Weight Worksheet
Mass and Weight Worksheet

Exercises
Exercises

... ii. Calculate the fractional amount of mass converted into energy by hydrogen fusion. (Refer to Table 1 for the mass of a proton and of a helium nucleus.) iii. Derive an expression for the nuclear timescale in solar units, i.e. expressed in terms of R/R , M/M and L/L . iv. Use the mass-radius and ...
January 2002
January 2002

IIT Paper 2011 - auroraclasses.org
IIT Paper 2011 - auroraclasses.org

AP Summer Assignment - York County School Division
AP Summer Assignment - York County School Division

< 1 ... 54 55 56 57 58 59 60 61 62 ... 90 >

Negative mass

In theoretical physics, negative mass is a hypothetical concept of matter whose mass is of opposite sign to the mass of normal matter, e.g. −2 kg. Such matter would violate one or more energy conditions and show some strange properties, stemming from the ambiguity as to whether attraction should refer to force or the oppositely oriented acceleration for negative mass. It is used in certain speculative theories, such as on the construction of wormholes. The closest known real representative of such exotic matter is a region of pseudo-negative pressure density produced by the Casimir effect. Although general relativity well describes gravity and the laws of motion for both positive and negative energy particles, hence negative mass, it does not include the other fundamental forces. On the other hand, although the Standard Model well describes elementary particles and the other fundamental forces, it does not include gravity, even though gravity is intimately involved in the origin of mass and inertia. A model that explicitly includes gravity along with the other fundamental forces may be needed for a better understanding of the concept of negative mass.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report