Which Russian sport psychologist, employing a worldview of sport psychology, focused on psychological preparation for athletic competition in the same time period as Coleman Griffith

24-karat gold is considered to be pure gold. 18-karat gold is considered to be about 75% gold. what is 18-karat gold considered a mixture rather than a pure substance? a) it has a variable composition of other elements and minerals. b) its color is different than pure gold. c) the gold atoms are not arranged in a repeating pattern. d) it can be melted and transformed into a different substance.

What do supreme court decisions based on the first amendment usually involve?

What is a country called that is technically independant but is controlled by another country