A particle is composed of three point particles, each of which has a mass of 300

Question

A particle is composed of three point particles, each of which has a mass of 300 MeV. The total internal energy of the system, that Is, the kinetic and potential energies of all three particles summed together, is -500 MeV. [Remember that a bound system in physics has negative total energy: the standard nomenclature is that the 'binding energy" of the system is 500 MeV, that Is, this Is the amount of work required to pull it apart Into Its Individual pieces at rest far from one another.) Given these facts, what would be the observed mass of the composite particle? -200MeV. 700 MeV. 100 MeV. 200 MeV. 1400 MeV. According to Einstein's Theory of Gravitation, and confirmed by experiment, a clock in life penthouse of a very tall building runs at a different rate than a clock in the sub-basement of that building. Which clock runs fastest? The clock in the penthouse runs slower. Both clocks run at the same rate, gravity Just distorts the shape of the lower clock more than It distorts the shape of the upper clock. The clock in the penthouse runs faster. Einstein's Theory of Gravity actually doesn't deal with this situation.

Explanation / Answer

The mass of the composite particle is:

M=(3)(300)-500=400 MeV

b)

The time period of pendulum is inversly preportional to square root of accelration due to gravity. Acceleration due to gravity decreases as the height increases, and hence the time period increases. Thus,The clock in the pent house runs faster

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