subject
Physics, 21.12.2019 01:31 hixoxo

It has become popular for some people to have yearly whole-body scans (ct scans, formerly called cat scans), using x-rays, just to see if they detect anything suspicious. a number of medical people have recently questioned the advisability of such scans, due in part to the radiation they impart. typically, one such scan gives a dose of 12 msv, applied to the whole body. by contrast, a chest x-ray typically administers 0.20 msv to only 6.0 kg of tissue. how many chest x rays would deliver the same total amount of energy to the body of a 85 kg person as one whole-body scan?

ansver
Answers: 2

Other questions on the subject: Physics

image
Physics, 21.06.2019 13:00, bluenblonderw
Does baby oil have a high or low velocity?
Answers: 2
image
Physics, 22.06.2019 08:40, Hazeleyes13
An isolated conducting spherical shell carries a positive charge. part a which statement (or statements) about the electric field and the electric potential inside and outside the spherical shell is correct? which statement (or statements) about the electric field and the electric potential inside and outside the spherical shell is correct? electric potential inside the shell is constant and outside the shell is changing as 1/r2 both the electric potential and the electric field does change with r inside and outside the spherical shell electric potential inside and outside the shell is constant, but not zero electric potential inside the shell is constant and outside the shell is equal to zero electric field inside and outside the shell is constant (does not change with the position r), but is not equal to zero electric field inside and outside the shell is changing as 1/r (where r is the distance from the center of the sphere) electric field inside is equal to zero and outside the shell is constant, but not zero electric potential inside the shell is constant and outside the shell is changing as 1/r electric field inside and outside the shell is changing as 1/r2 electric field inside is equal to zero and outside the shell is changing as 1/r2 electric field inside and outside the shell is zero electric field inside is constant and outside the shell is changing as 1/r
Answers: 3
image
Physics, 22.06.2019 09:00, Fvmousdj5
Asystematic approach to problem solving is called a (an)
Answers: 1
image
Physics, 22.06.2019 11:30, alexandroperez13
With the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 1.90
Answers: 1
You know the right answer?
It has become popular for some people to have yearly whole-body scans (ct scans, formerly called cat...

Questions in other subjects:

Konu
Mathematics, 27.01.2021 18:30
Konu
Mathematics, 27.01.2021 18:30
Konu
Mathematics, 27.01.2021 18:30