A piece of wood from an Egyptian tomb has C-14 activity of 980 counts/hour. A piece of new wood of the same size has 3,920 counts/hour. What is the age, in years, of the wood from the tomb? The half-life of C-14 is 5,730 years.

The continuous release of nuclear energy caused when one fission reaction triggered more nuclear reactions is a

This flow chart shows the amount of energy that is emitted by each type of light. ultraviolet > blue light > yellow light > red light (maximum energy) (minimum energy) in an experiment, shining which type of light on a strip of metal would be least likely to produce the photoelectric effect? ultraviolet light dim blue light bright red light bright yellow light

Consider the following reaction at equilibrium. 2co2 (g) 2co (g) + o2 (g) h° = -514 kj le châtelier's principle predicts that the equilibrium partial pressure of co (g) can be maximized by carrying out the reaction a. at high temperature and high pressure b. at high temperature and low pressure c. at low temperature and low pressure d. at low temperature and high pressure e. in the presence of solid carbon