subject
Physics, 31.08.2019 04:10 kelli151

Calculate minimum number of incident photons per area and of the minimum dose needed to visualize an object of 1 mm squared using x rays of energy 50 kev. ( thickness 10^-3)(contrast 1%)

ansver
Answers: 1

Another question on Physics

question
Physics, 21.06.2019 22:40
In physics the desire of an object to keep doing what it is doing is termed?
Answers: 1
question
Physics, 22.06.2019 02:30
Agas contained within a piston-cylinder assembly undergoes three processes in series: process 12: compression with pv= constant from 1 bar and 1 liter to 4 bar. process 23: constant pressure expansion to 1 liter. process 31: constant volume calculate the pressure and volume at each state, and sketch the processes on a p-vdiagram labeled with pressure and volume values at each numbered stat
Answers: 2
question
Physics, 22.06.2019 06:10
Africtionless piston-cylinder contains 50 l of saturated liquid r-134a. the piston has a mass and an area resulting in an applied pressure of 500 kpa on the refrigerant. the refrigerant is now heated until its temperature rises to 70∘c. calculate the work (in kj) done during this process.
Answers: 3
question
Physics, 22.06.2019 16:30
In the nineteenth century, gregor mendel first determined some basic rules of genetics that have been observed throughout all types of life. no observations have disproved these basic rules of genetics. charles darwin developed the idea of biological evolution around the same time, but he was unaware of mendel’s discoveries in genetics. over a century later, darwin’s idea of evolution was modified in order to incorporate mendel’s rules of genetics along with the other evidence that darwin had used. what is most likely the relationship between mendel’s rules of genetics and darwin’s idea of biological evolution? a.)mendel’s genetics states laws that are now part of the theory of biological evolution.b.)biological evolution states laws that are part of mendel’s theory of genetics.c.)mendel’s genetics replaced darwin’s entire concept of biological evolution.d.)biological evolution is a law that explains why all genetics exist.
Answers: 1
You know the right answer?
Calculate minimum number of incident photons per area and of the minimum dose needed to visualize an...
Questions
question
Mathematics, 02.10.2020 15:01
question
Biology, 02.10.2020 15:01
question
Mathematics, 02.10.2020 15:01
question
Medicine, 02.10.2020 15:01
Questions on the website: 13722367