When the ______________ is crossed traveling westward, the date is advanced to the next day
Fill in the blank(s) with correct word
International Date Line
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Consider a satellite (whose mass is m) orbiting the earth (whose mass is M). If we use the formula Vg = -GMm/r for the gravitational potential energy in this situation, the earth/satellite system’s total energy E turns out to be negative. With respect to the total energy of what situation is E negative?
A. The satellite at rest at the earth’s surface B. The satellite at rest at the earth’s center C. The satellite orbiting just above the earth’s surface D. The satellite at rest at infinity E. Some other situation (specify
The conservation of energy applies to satellites in
A) circular orbit. B) elliptical orbit. C) both of these D) neither of these
Order the following from most to least dense:
a. black hole, neutron star, white dwarf b. white dwarf, neutron star, black hole c. black hole, white dwarf, neutron star d. neutron star, white dwarf, black hole
The analysis of Martian rocks on Earth show that they contain
A) tantalizing but unconfirmed hints of life. B) bacteria with closely related DNA to bacteria on Earth. C) bacteria with very different DNA from bacteria on Earth. D) water ice. E) chemical byproducts of life.