The ability to roll your tongue is determined by the dominant gene.
3600 years.
Since 65% of the carbon-14 is remaining, we need to get the logarithm to base 2 of 0.65 to determine how many half lives have expired. So: log(0.65)/log(2) = -0.187086643/0.301029996 = -0.621488377
So we know that 0.621488377 half-lives has gone by to the bone sample. Now we just need to multiply by the half-life of carbon-14 which is 5730 years. So: 0.621488377 * 5730 = 3561.128399 years. Rounding to the nearest 100 years gives us 3600 years.
1 atmosphere = 760 torr
R = 0.082
44 degrees Celsius = 317 degrees Kelvin
I think there would be two correct answers from the choices listed above. These are the second and the last option. Composites are strong and elastic because of the extensive cross-linking between molecules and the <span>properties of metals and plastics. Hope this answers the question.</span>
