- Calvin's Quiz #468 - ANSWERS & SCORES - 2 Updates
- QFTCIMM16 Game 3, Rounds 2-3: Gillers and gravity - 1 Update
| Calvin <334152@gmail.com>: Dec 21 03:38PM -0800 On Monday, December 19, 2016 at 1:20:44 PM UTC+10, Calvin wrote: > 1 Which British physicist and engineer (1824-1907) is credited with coining the term "kinetic energy"? William Thomson aka Lord Kelvin > 2 Which country was runner-up in both the 1974 and 1978 football (soccer) World Cups? Netherlands > 3 According to the Gospels, at which site immediately outside the walls of Jerusalem was Jesus crucified? Calvary aka Golgotha > 4 What 6-letter word is both a car part and a collective name for eggs? Clutch > 5 How may basic positions are there in modern-day classical ballet? 5 > 6 Which mathematician and astronomer (1571-1630) is remembered for his three laws of planetary motion? Johannes Kepler > 7 Which author (1927-2001) wrote the "Bourne Identity", "The Bourne Supremacy" and "The Bourne Ultimatum"? Robert Ludlum > 8 In which US state are the Bonneville Salt Flats where many land speed records have been set? Utah > 9 By what name do the Japanese call Japan? Nippon (or various similar spellings) > 10 Which sport do the Baltimore Ravens play professionally? American Football Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 TOTAL TB Quiz 468 1 1 1 1 1 1 1 1 1 1 10 65 Gareth Owen 1 1 1 1 1 1 1 1 1 1 10 65 Stephen Perry 1 0 1 1 0 1 0 1 1 1 7 46 Dan Tilque 0 1 1 1 1 1 1 0 0 1 7 47 Peter Smyth 0 0 1 1 0 1 1 1 1 1 7 50 Mark Brader 0 0 1 1 0 1 1 1 0 1 6 42 Marc Dashevsky 0 1 1 0 0 0 1 1 1 1 6 42 Pete Gayde 0 1 1 0 0 1 0 1 1 0 5 36 Erland S - - - - - - - - - - --- ---------- 3 5 8 6 3 7 6 7 6 7 58 73% Congratulations Gareth and Stephen. Merry Christmas all. CQ #469 will appear on approximately 10 January 2017. cheers, calvin |
| msb@vex.net (Mark Brader): Dec 21 06:41PM -0600 "Calvin": > Merry Christmas all. Likewise. > CQ #469 will appear on approximately 10 January 2017. It's getting lonely around here! -- Mark Brader | "Mechanics, musicians, and programmers all know Toronto | how to arrange numerous small units into logical msb@vex.net | patterns such that the arrangement has the power | to move something in a profound way." -- Barry Kort |
| Gareth Owen <gwowen@gmail.com>: Dec 21 07:02PM > 1. Gravity is the weakest of the four fundamental forces (or > interactions). Another one of the four is electromagnetism. > Name one of the other two. Weak Nuclear > the same as the speed of light. Therefore, if the Sun suddenly > disappeared, how long -- rounded to the nearest whole minute -- > would it take for the Earth to start spinning out of orbit? 6 minutes > in such a way that smaller objects such as asteroids and > spacecraft can remain in a relatively stable position relative > to the two bodies. What are these points called? Lagrange Points > 4. The formula to calculate the acceleration due to gravity at the > Earth's surface is Gm/r, where m is the mass of the Earth and > r is the radius of the Earth. What is G called? Universal Gravitational Constant > commonly quoted rounded values is acceptable), What is the > escape velocity from Earth? That is, the speed required to > escape the Earth's gravitational pull. 1/2 mv^2 = \int_{R}^\inf K/r^2 dr where K/R^2 = 9.81, and R = 6500km v^2 = 2*K/R = 19.62*R = 19.62 * 6500000 say So with some handy rounding, call that 20 * 6,400,000 or 2 * 64,000,000 v = \sqrt{2} * \sqrt{8000*8000} = 1.4*8000 = 11,200 m/s Do I get any marks for the working? > 6. What is the term given to an object of such mass and gravity > that it can be observed to bend light? Gravitational Lens > 7. What is the name given to the 84% of the universe which, although > not directly observable, is detected by gravitational effects? Dark Matter > at the Delft church tower in the Netherlands. He set out > to demonstrate what is now known as the "weak equivalency > principle". How did he do that? Dropped objects of different mass from a high place. > Qnivq Fpbgg bs gur Ncbyyb 15 zvffvba pbaqhpgrq gur fnzr > rkcrevzrag ba gur zbba va 1971. Anzr *rvgure* bs gur gjb > bowrpgf gung ur qebccrq. Feather > fixed in position. This orbit, or belt, is named after a > science-fiction writer who first recognized its importance in > a 1945 article. Who? Arthur C. Clarke |
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