In 1951, fragments of charcoal from the excavation of the cave were analyzed. The charcoal sample had a specific activity of 2.34 d/min*g. In 2002, a new radiocarbon analysis on a reindeer antler baton was performed. The antler sample had a specific activity of 1.56 d/min*g. The ratio of 12C/14C for living organisms results in a specific activity of 15.3 d/min*g. The half-life for 14C is ~5730 years. Calculate the age that was determined for both the 1951 and the 2002 analysis. Please show your work.

Which statement about sound is not true? a. air particles travel with sound waves. b. sound waves cannot travel through a vacuum. c. sound waves exist even if no one hears them. d. air particles vibrate along the path of a sound wave.

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same

Select the correct answer from each drop-down menu.describe what happens to a carbon-11 atom when it undergoes positron emission.the decay of a carbon-11 atom _1_, and this causes it to emit _2_.options for 1: > changes a neutron into a proton> changes a proton into a neutron> is hit with a neutron> reconfigures its protons and neutronsoptions for 2: > a negatively charged electron-sized particle> a positively charged election-sized particle> two atoms and several neutrons> two neutrons and two protons