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9/ the 2011 Nobel Prize in Physics was awarded to 3 men who study white dwarf...
2000 Ho=68 km/s Mpc * Redshift (km/s) 1000 * Virgo Cluster 0 + + 0 a Montenele best 20 10 Distance (Mpc) Part 5/6 Let's now calculate the number of years that is, recalling that one year equals approximately 3 x 107 seconds x 10 നമാലയിൽ രാജി years Terms The universe is expanding according to Edwin Hubble's famous equation Hod where v is the velocity of a galaxy at distance d away. Professional astronomers usually talk about Hubble's Constant in...
1) The missing mass problem is a) starlight is observed, but there is no evidence of mass b) the amount of mass measured is less than the amount of light measured c) starlight follows the same distribution as mass d) there are indications of mass from motion but no light e) spacetime is warped by mass 2) The rotation curve of the Galaxy is a) flat in the core, planet-like in the disk b) wheel-like in the core, flat in...
2. Imagine a type of "phantom energy" with w<-1. (a) Write down the Friedmann equation for a flat universe containing matter and phantom energy 1/(3 ) (b) Show that the matter-phantom equality scale factor is amp = (1- 0) (c) In the phantom energy dominated epoch show that a → at a finite time trip-to = 200-311+wl This is called a "big rip". Hint: integrate over the time range from to to trip. (d) Current data is consistent with w...
this pic will helpful upper one is not clear 1.For Galaxy M87 calculate the distance d in Mpc and recessional velocity vr in km/s. Put your answers separated by a comma. 2.For Galaxy M60 calculate the distance d in Mpc and recessional velocity vr km/s. Put your answers separated by a comma. 3.For Galaxy M104 calculate the distance d in Mpc and recessional velocity vr km/s. Put your answers separated by a comma. 4.For Galaxy M95 calculate the distance d...
Multiple Choice Identify the choice that best completes the statement or a wer the question 1. One of the nearest stars is Alpha Centauri, whose distance is 4.4 light-years. The time it takes light to travel from Alpha Centauri to us is a 1.25 seconds b. 8.3 minutes c. 4.4 years. d. 600 years. 2. Which of the following is false? a The Local Group is a member of the Laniakea Supercluster, which contains thousands of galaxies. b. The Local...
RSES Tutorial 2 (2017) The total UK electricity delivered to customers during 2014 was approximately 3 approximately 91.5% of the electrical energy available was delivered to customers, some 85% of the available electrical energy was lost in transmission and distribution 1 01.7TWh. In that year a) Determine the total electrical energy that was available (generated within the UK and net imported) during 2014. (329.7TWh) b) Determine the average UK electricity power consumed and the average UK power available over the...
3. Besides H, list other hydrogen like species in which the Rydberg constant in eq. 3 would still be 1.10 x 10"? 4. Is a Het 5-3 transition in the visible range? Calculate and explain. 5. Are there any electronic transitions of Het involving energy levels 1, 2 and 3 which are in the visible range? That is, will He emit any visible photons when the electrons fall from any level to levels 1, 2, and 3? If not, show...
Open with Physics 1214, General Physics -I, Fall 2019 Recitation Problems 9- Chapters 9, 10, 12, 11 PROBLEMS: SHOW ALL WORK, not just the answers 1. From a stationary position at 0-0, a bicycle wheel accelerates with a constant angular acceleration of a = 10.0 s a) What is its angular velocity o after 5 s? b) What is its angular position 0 at that time? 2. An iceskater is turning at a PERIOD of (1/3) second with his arms...
Physics Lab Assignment This particular discovery is also an example of how those who deserve an award sadly are not always the ones who receive it. Read the following passage focusing your attention on the scientific procedures and scientific abilities you have been developing throughout the course. The discovery of pulsars –rotating neutron stars that generate regular pulses of radiation at their spin rate- was fortuitous. A group of astrophysicists from Cambridge University lead by Anthony Hewish was looking for...
view Use these responses for the next 3 questions: A.+AH B.-AH C.-AG D. +AG E. +AS F.-AS Which represents an exothermic chemical reaction? represents a spontaneous chemical reaction? 3. F Which would be used to represent a system with increasing order? 2. Which For the following three questions, use A. Xonly B.Y only C. both X and Y D. neither X nor Y 4. A In which of the following reactions does the entropy increase? reactionX: CaCOs(s) → CaO(s)+000 5.上...