Physics, 23.08.2019 05:20, griffinbrowning17
The half-life of radon (which is a radioactive carcinogen) is 3.8 days. the safe level of radon exposure is 400 bq/m3. a house is found to be at a dangerous level of 8000 bq/m3. if there is no input or output of the gas, will it be safe to enter the house in 16 days? 5. what is the richter scale measurement for an earthquake that is 5 times as intense as an earthquake measuring 8.2 on the richter scale?
Answers: 2
Physics, 22.06.2019 10:00, autumnskye1
In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final
Answers: 3
The half-life of radon (which is a radioactive carcinogen) is 3.8 days. the safe level of radon expo...
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