Dark matter - Study guides, Class notes & Summaries

Bright Field Microscope CORRECT ANSWER Most widely used Dark object, bright background Examine stained and unstained specimens Made by putting light through specimen Dark field microscope CORRECT ANSWER Image is lighter than illuminated background Uses a condenser on the light microscope Phase contrast microscope CORRECT ANSWER Used with live specimen Produces image with specimen against gray background Can see internal cells Scanning electron microscope CORRECT ANSWER Detailed 3D...

dark energy + evidence correct answers a mysterious repulsive force that appears to be causing the expansion of the universe to accelerate Type Ia supernovae as standard candles; Hbl law says they should be moving faster there; inverse square law for light dictates that dimmer = farther; calculated dstncs to things are even farther than their redshift predicts; they are being pushed away dark matter + evidence correct answers matter (gravity, attractive force) that does not give off electr...

big bang theory correct answers the universe was hot and dense at beginning, energy could be transformed into matter in these conditions, if everything is moving away it must have been close at one time, same place same time, explosion of space what are the fundamental forces of nature correct answers weak force, strong force, electromagnetism, and gravity inflation correct answers energy released near the end of the GUT era may have caused a dramatic expansion of the universe first evi...

astro 7n exam 2 Questions with complete solution 2024 astro 7n exam 2 Which of the following does physics professor Bernard Bates assert as essential in order for living organisms to develop advanced technology? -written language -diet consisting of meat -harnessing electricity -ability to see colors -living on land - correct answer living on land Who among the following suggested that there might be life that consists of or lives within "dark matter" or "dark energy" (which act...

GACE 024 & 025 Latest Update Graded A+ Condensation Of Hypothesis Proposes that solar system began with rotating clouds of dust & gas. -Widely accepted Tidal Hypothesis Proposes that solar system began with a near collision of the sun & a larger star. The Big Bang Theory The universe originated from a magnificent explosion spreading mass, matter & energy into space. The Steady State Theory Universe is continuously being renewed. Constellations Points to locate other stars i...

Scale factor Ans- R(t) of the Universe showing expansion Inflation Ans- Early era of rapid expansion after the Big Bang Big Bang theory Ans- Explains Universe expansion, CMB, and chemical composition Cosmic Microwave Background (CMB) Ans- All-pervasive 2.7 Kelvin radiation in the Universe Dark energy Ans- Composes 68.5% of the Universe, dominates its evolution Forces in the Universe Ans- Gravitational, electromagnetic, strong, and weak forces Theory of Everything Ans- Hypothesized u...

PSYC-375 History of Psychology Midterm. Questions and answers. Graded A+. 2022/2023 updates Document Content and Description Below PSYC-375 History of Psychology Midterm Of the following, who would be most likely to take the position that humans are responsible for their actions? - Non determinist and soft determinist _ ________________ emphasizes the works of individuals who most prominently contributed to a topic such as Plato, Aristotle, Descartes, Darwin of Freud in - The Great-person appr...

"Exploring the Universe" takes readers on a journey through the vast expanse of space, detailing the latest discoveries in astronomy and astrophysics. The book covers the formation and evolution of stars, the structure of galaxies, and the intriguing phenomena of black holes. It also delves into the mysteries of dark matter and dark energy, and how they influence the cosmos. With clear explanations of complex concepts and the most recent advancements in space exploration, this summary provides...

astro 7n exam 2Which of the following does physics professor Bernard Bates assert as essential in order for living organisms to develop advanced technology? -written language -diet consisting of meat -harnessing electricity -ability to see colors -living on land - correct answer living on land Who among the following suggested that there might be life that consists of or lives within "dark matter" or "dark energy" (which actually make up far more of our universe than the atoms we are...

Mineral - Answer-A natural, inorganic substance with a characteristic chemical composition and usually characteristic structure. Mixed cut - Answer-A cutting style that combines brilliant-cut and step cut facets. Abrasions - Answer-Tiny nicks and pits caused by wear and damage to a gem's facet edges or culet. Absorption spectrum - Answer-A pattern of dark vertical lines or bands shown by certain gems when viewed through a spectroscope. Adularescence - Answer-The cloudy bluish white light ...