Draw the three structural formulas for the molecular formula C3H8O
CH3CH2CH2OH, CH3CH(OH)CH3, and CH3CH2OCH3
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In which of the following cases can we determine the precise mass and density of an extrasolar planet?
A) We have detected the planet with both the transit and Doppler methods. B) We have detected the planet with the Doppler method, but not any other method. C) We have detected the planet with the transit method, but not any other method. D) We have observed both transits and eclipses of the orbiting planet.
A star with a parallax angle of 1/20 arcsecond is ________
A) 20 parsecs away B) 20 light-years away C) 10 parsecs away D) 1/20 parsec away
A U-tube with a cross-sectional area of 1.00 cm2 is open to the atmosphere at both ends. Water is poured into the tube until the water rises part-way along the straight sides,
and then 5.00 cm3 of oil is poured into one end. As a result, the top surface of the oil ends up 0.550 cm higher than the water surface on the other side of the U. What is the density of the oil?
What does E0 = mc 2 describe?
a. The kinetic energy of an object of mass m moving at speed v. b. The kinetic energy of an object of mass m moving at speed c. c. The equivalence of mass and energy. d. The form taken by Newton's second law at relativistic speeds. e. The relativistic mass.