(d)
3 and 4
which section best explains why the old system for defining the kilogram had become a problem?
(a)
"an acknowledgment of a constant truth"
"for all times and for all people"
"planck's constant was needed to reach perfection"
"and the number is 6.626069934 x 10-34 kg. m2/s"

Which is one reason many african nations have not prospered after gaining independence from european colonial powers? a. colonial powers sent their weakest economic advisors to the new countries, and their recommendations were flawed. b. independence left them with weak economies, and many countries have been unable to overcome or recover from these burdens. c. the desert region of the interior is inhospitable to foreign investors, and business interests focused on the coastal mediterranean cities. d. the money endowed upon independence is still tied up in the bank of england, which is hesitant to make loans to struggling nations.

War of 1812 allowed the us to take control of lake erie

What conclusion was reached by the warren commission