L. Marcus Posted May 13, 2014 Report Share Posted May 13, 2014 That's a great leveler! If she's not good, declare her favorite [whatever] to be the coolest. Quote Link to comment Share on other sites More sharing options...
Cancer Posted May 13, 2014 Report Share Posted May 13, 2014 I've played that card before, and it has lost much of its effectiveness. Quote Link to comment Share on other sites More sharing options...
Bazza Posted May 14, 2014 Author Report Share Posted May 14, 2014 Quote Link to comment Share on other sites More sharing options...
L. Marcus Posted May 14, 2014 Report Share Posted May 14, 2014 One second flat, if he were so inclined. Quote Link to comment Share on other sites More sharing options...
Asperion Posted May 14, 2014 Report Share Posted May 14, 2014 About 3.1415 months. Cancer 1 Quote Link to comment Share on other sites More sharing options...
Bazza Posted May 15, 2014 Author Report Share Posted May 15, 2014 About 3.1415 months. So 1.618 months more than expected. Quote Link to comment Share on other sites More sharing options...
Bazza Posted May 15, 2014 Author Report Share Posted May 15, 2014 Quote Link to comment Share on other sites More sharing options...
Cancer Posted May 15, 2014 Report Share Posted May 15, 2014 There is an object with a mass 4 million times that of the Sun located 8000 parsecs away (1 parsec ~ 3 * 10^16 m). (The object is a black hole.) Compute the gravitational force between this object and your instructor (assume his mass is 100 kg). Try not to be disappointed with your answer. tkdguy and Pariah 2 Quote Link to comment Share on other sites More sharing options...
Bazza Posted May 15, 2014 Author Report Share Posted May 15, 2014 or calculate the gravitational force between this object (above) on Earth. tkdguy 1 Quote Link to comment Share on other sites More sharing options...
Cancer Posted May 15, 2014 Report Share Posted May 15, 2014 Neutron star material is more or less the same density as the atomic nucleus. Quote Link to comment Share on other sites More sharing options...
L. Marcus Posted May 15, 2014 Report Share Posted May 15, 2014 ... As thick as a really thick thing that is going through a bit of a thick phase. Quote Link to comment Share on other sites More sharing options...
Cancer Posted May 15, 2014 Report Share Posted May 15, 2014 Like a bad balsam-wallboard smoothie with extra plaster. Quote Link to comment Share on other sites More sharing options...
L. Marcus Posted May 15, 2014 Report Share Posted May 15, 2014 Mmmm, grit ... Quote Link to comment Share on other sites More sharing options...
Pariah Posted May 15, 2014 Report Share Posted May 15, 2014 Student: Do acids produce hydrogen ions or hydroxide ions? Me: It is one of those two, yes. Quote Link to comment Share on other sites More sharing options...
Pariah Posted May 15, 2014 Report Share Posted May 15, 2014 Neutron star material is more or less the same density as the atomic nucleus. Or, as Sagan, said, about a mountain per teaspoon. You could also say that a neutron star is essentially one enormous atomic nucleus, but not of any known chemical element. Quote Link to comment Share on other sites More sharing options...
L. Marcus Posted May 15, 2014 Report Share Posted May 15, 2014 I'd summon that elemental. Quote Link to comment Share on other sites More sharing options...
Cancer Posted May 15, 2014 Report Share Posted May 15, 2014 You could also say that a neutron star is essentially one enormous atomic nucleus, but not of any known chemical element. Since element is just number of protons, and that number is fluctuating (due to several different processes), it's mutable. The delightful phrase "neutron drip" is applicable here. Pariah 1 Quote Link to comment Share on other sites More sharing options...
Pariah Posted May 15, 2014 Report Share Posted May 15, 2014 Since element is just number of protons, and that number is fluctuating (due to several different processes), it's mutable. The delightful phrase "neutron drip" is applicable here. I thought "Neutron drip" had reference to that supervillain who was the leader of the Conquerors. (Are they still a group in 6E?) Quote Link to comment Share on other sites More sharing options...
Cancer Posted May 15, 2014 Report Share Posted May 15, 2014 3. A "flying" toy is launched from the ground with an initial velocity of 20.0 m/s directed due east and 50 degrees above the horizontal. 1.10 seconds into the flight the toy breaks into three parts, with masses of 30 g, 20 g, and 10 g. The break-up throws the 30 g piece due north at 0.30 m/s relative to the unbroken toy at the instant of break-up, and it throws the 20 g piece due southwest at 0.45 m/s at the same time. Assume no aerodynamic forces (lift or drag) and a flat, level ground surface. How much energy was released in the break-up (which presumably comes from fasteners failing and stored elastic energy being partitioned into the kinetic energy of the pieces)? Where do the three pieces land? Suggestion: choose the origin to be the launch point, and choose the +x direction to be due east, + y direction to be due north, and +z direction to be up. Quote Link to comment Share on other sites More sharing options...
Pariah Posted May 15, 2014 Report Share Posted May 15, 2014 I'm sorry, but that doesn't even sound like fun to grade. Quote Link to comment Share on other sites More sharing options...
L. Marcus Posted May 15, 2014 Report Share Posted May 15, 2014 Well, for a given value of "fun" ... Quote Link to comment Share on other sites More sharing options...
Bazza Posted May 15, 2014 Author Report Share Posted May 15, 2014 Or, as Sagan, said, about a mountain per teaspoon. You could also say that a neutron star is essentially one enormous atomic nucleus, but not of any known chemical element. Uru, everybody know that. Quote Link to comment Share on other sites More sharing options...
Cancer Posted May 15, 2014 Report Share Posted May 15, 2014 Also sprach Comte. Quote Link to comment Share on other sites More sharing options...
Cancer Posted May 16, 2014 Report Share Posted May 16, 2014 Bumped into the daily limit on "Like" votes twice today. Grr. Quote Link to comment Share on other sites More sharing options...
Bazza Posted May 16, 2014 Author Report Share Posted May 16, 2014 I'm alwYs available if you need to share it around. Quote Link to comment Share on other sites More sharing options...
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