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Geography undermined the political unity of the Greek city-states. 

A discontinuous function may or may not have a Laplace transform.

Alexandria was founded in Turkey by Alexander the Great.

If a satellite is orbiting the Earth on a circular orbit with radius R, where does the acceleration vector of the perigee burn need to be directed to get the satellite into a Hohmann transfer orbit to a higher circular orbit?

He used the Delian League’s monies to build Athens’ navy and his actions led to the resentment of the other city-states and contributed to the Peloponnesian War.

Which of the following gases will have a volume of 22.4L if you had 1 mole of each gas at STP (1.00 atm and 273 K):  O2, NH3, H2, CO2?

The system x’ = cos(t)x + sin(t)yy’ = cos(t)x – sin(t)y is linear.

Suppose you have a planet with mass M and a satellite in a circular orbit with radius r, moving at a constant angular speed ω. Suppose also you have a second satellite in a circular orbit around the same planet, at radius 4r. What is its angular speed?  

Who was the Persian king who lost to the Athenians at the Battle of Marathon?

Which of the following is NOT associated with ancient Sumer?