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1 discuss whether you think there are limits to what humans can understand about the laws of physics support your
for experimental evidence particularly of previously unobserved phenomena to be taken seriously it must be reproducible
not only is liquid nitrogen a cheaper coolant than liquid helium its boiling point is higher 77 k vs 42 k how does
1 state a necessary condition for a system to be chaotic2 what is critical temperature tc do all materials have a
1 does observed gravitational lensing correspond to a converging or diverging lens explain briefly2 what are
suppose you measure the red shifts of all the images produced by gravitational lensing such as in figure 3412 you find
quantum gravity if developed would be an improvement on both general relativity and quantum mechanics but more
a what is the approximate force of gravity on a 70-kg person due to the andromeda galaxy assuming its total mass is
1 andromeda galaxy is the closest large galaxy and is visible to the naked eye estimate its brightness relative to the
construct your own problemconsider a star moving in a circular orbit at the edge of a galaxy construct a problem in
1 what is the schwarzschild radius of a black hole that has a mass eight times that of our sun note that stars must be
1 supermassive black holes are thought to exist at the center of many galaxiesa what is the radius of such an object if
construct your own problemconsider a supermassive black hole near the center of a galaxy calculate the radius of such
the characteristic length of entities in superstring theory is approximately 10-35 ma find the energy in gev of a
the critical mass density needed to just halt the expansion of the universe is approximately 10-26 kg m3a convert this
1 assume the average density of the universe is 01 of the critical density needed for closure what is the average
a section of superconducting wire carries a current of 100 a and requires 100 l of liquid nitrogen per hour to keep it
a car moving at speed of 36kmhr is taking a turn on a circular road of radius 50ma small wooden plate is kept on the
questiona 500-g chunk of an unknown metal which has been in boiling water for several minutes is quickly dropped into
an 800-o resistor a 200-mh inductor and a 0150-microf capacitor are connected in parallel across a 120-v rms source
suppose a diving board with no one on it bounces up and down in a simple harmonic motion with a frequency of 500 hz the
1 pick a company as completely as possible characterize its brand portfolio and brand hierarchy how would you improve
the best painkiller for children a washington post article reported a study comparing the effectiveness of three common
peanut brittle a food scientist wishes to study the effect of the type of pan and amount of sodium bicarbonate used in
comparing hand strength is the right hand generally stronger than the left in right-handed people you can crudely