What would happen if a small piece (say the size of a paper clip) of neutron star material struck Earth?
What will be an ideal response?
The extremely dense material could not be supported by the ordinary material on Earth and it would plunge to the center of Earth under the action of gravity. Its momentum would carry it past the center, back to the other side and it would continue to oscillate back and forth through Earth creating a small hole each time (that would rapidly fill with molten rock) until friction finally brought it to rest at the center of Earth.
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A perpetual motion machine of the second kind
A. violates the first law of thermodynamics B. would be a good investment C. violates the second law of thermodynamics D. violates the zeroth law of thermodynamics
How long will it take a charged 80-?F capacitor to lose 20% of its initial energy when it is allowed to discharge through a 45-? resistor?
A. 0.92 ms B. 0.64 ms C. 0.40 ms D. 0.19 ms E. 0.80 ms
The International Space Station is orbiting at an altitude of about 370 km above the earth's surface. The mass of the earth is 5.976 × 1024 kg and the radius of the earth is 6.378 × 106 m
(a) Assuming a circular orbit, what is the period of the International Space Station's orbit? (b) Assuming a circular orbit, what is the speed of the International Space Station in its orbit?