Ahat contains 100 coins, where at least 99 are fair, but there may be one that is double- headed (always landing heads); if there is no such coin, then all 100 are fair. let d be the event that there is such a coin, and suppose that p(d) = 1/2. a coin is chosen uniformly at random. the chosen coin is flipped 7 times, and it lands heads all 7 times.

Which energy transformation occurs in the core of a nuclear reactor? nuclear energy mechanical energy nuclear energy - thermal energy thermal energy -- nuclear energy mechanical energy - nuclear energy

Which configuration would produce an electric current? a) rotate a coil of copper wire between two magnets. b) connect a wire between a copper and zinc strip sitting in a beaker of water. c) connect a wire to the (+) positive end of a battery and the other end to a light bulb. d) connect a wire to the negative end of a battery and the other end to a light bulb.

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.