Our most detailed maps of Venus come from:

A) the Magellan space probe.
B) the Hubble Space Telescope.
C) direct observation from Earth based optical telescopes.
D) manned landings.
E) Earth based radio telescopes.


A

Physics & Space Science

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A proton, moving east, enters a magnetic field. Because of this magnetic field the proton curves downward. We may conclude that the magnetic field must have a component

A) towards the south. B) towards the north. C) towards the west. D) upward. E) downward.

Physics & Space Science

If galaxy A is four times more distant than galaxy B, then according to the Hubble Law, galaxy A will recede ____ than galaxy B

a. 16 times faster b. 4 times faster c. 2 times faster d. 1.2 times faster e. 0.25 times faster

Physics & Space Science

Which of the following gases in Earth's atmosphere is not primarily a product of volcanic outgassing?

A) water (H2O) B) nitrogen (N2) C) oxygen (O2) D) carbon dioxide (CO2)

Physics & Space Science

Which statement regarding the mix of state revenues is FALSE?

a. The 50 states combined had over $1.6 trillion annual revenue in 2011.
b. Over 70 percent of all state­generated (or "own source") revenues come from taxation.
c. Most revenue from direct charges for public services is in the form of tuition for higher education.
d. With few exceptions, states generate nearly all of their tax revenues from the general sales tax.

Physics & Space Science