Ga piece of charcoal used for cooking is found at the remains of an ancient campsite. a 0.84 kg sample of carbon from the wood has an activity of 1830 decays per minute. find the age of the charcoal. living material has an activity of 15 decays/minute per gram of carbon present and the half-life of 14c is 5730 y. answer in units of y.
Answers: 3
Another question on Physics
Physics, 21.06.2019 22:10
Agas is contained in a vertical, frictionless piston–cylinder device. the piston has a mass of 3.2 kg and a cross-sectional area of 35 cm2. a compressed spring above the piston exerts a force of 190 n on the piston. if the atmospheric pressure is 95 kpa, determine the pressure inside the cylinder.
Answers: 3
Physics, 22.06.2019 02:00
The crank oa rotates in the vertical plane with a constant clockwise angular velocity ω0 of 5.6 rad/s. for the position where oa is horizontal, calculate the force under the light roller b of the 10.6-kg slender bar ab.
Answers: 2
Physics, 22.06.2019 10:00
Students design a model roller-coaster track. they place a rubber ball at the highest point on the track and let it go. the ball rolls along the track pulled only by the force of gravity. eventually, it comes to a stop. which change to the design will result in the ball moving the greatest distance?
Answers: 1
You know the right answer?
Ga piece of charcoal used for cooking is found at the remains of an ancient campsite. a 0.84 kg samp...
Questions
Mathematics, 05.05.2020 23:46
Mathematics, 05.05.2020 23:46
History, 05.05.2020 23:46
Biology, 05.05.2020 23:46
History, 05.05.2020 23:46
Mathematics, 05.05.2020 23:46
Mathematics, 05.05.2020 23:46
Advanced Placement (AP), 05.05.2020 23:46
Mathematics, 05.05.2020 23:46
Mathematics, 05.05.2020 23:46
History, 05.05.2020 23:46
