1. How can you consider playing a chosen sport of yours as a lifelong recreational activity that will allow you to benefit in terms of mental, physical, emotional and social level?

2. Sports participation is not only based on age nor gender-biases. Agree or Disagree?

3. A smooth flow of a game largely depends on accurate judgement of the referee/umpires or players themselves, which must be objectively based on standard and existing rules. Agree or Disagree? Why?

Which of the following statements is not a prediction of the general theory of relativity?

(a) Different observers can disagree about the fundamental structure of spacetime.

(b) Time runs slightly slower on the surface of the Sun than on the surface of the earth.

(c) The Universe has no boundaries and no center.

(d) A binary star system with two stars orbiting each other rapidly emits gravitational waves.

(e) The curvature of spacetime can distort the appearance of distant objects.

1. A company has invented a new material that can with standextremely high temp. and conducts heat very effectively. They claimtht it will allow engines to be constructed that will be moreefficient than those currently available. They site the second lawof thermodynamics that states that the efficiency of the Carnotengine depends upon the temp diff. of the heat reservoirs and ahotter engine would be more effic.Student A and Student B discussthese statement and reach different conclusions. Wtih which studentdo you agree and why?

Student A While the effic. of a Carnot engine may depend upon temp.diff. for efficeincy, the carnot engine is an old design and thenew machines have much higheer efficeinceis. besides you cannot gean effic. of greater than 1 regardless of how it is constructedbecause of the conservation of energy law. This is just a gimmckand a rip off for dummies.

Student B: This could be a dramatic breakthrough. if the designerscan take advantage of these new properties. The Carnot engine setsthe absolute best possible design and a real engine might not rachtht level. Hoewever many rel engines are made more efficeint byrunning hotter.