Answer:
Given
Per Kg of body mass, there is 3 gram of potassium
And abundance of three isotopes are as follows
Potassium-39, Potassium-40, and Potassium-41. Have abundances respectively as 93.26%, 0.012% and 6.728%.
1) A body weighing 80 Kg will have 240 grams of potassium. And the amount of Potassium-40 will be 0.012% of 240 gram
= 240*0.012/100 = 0.0288 gram.
2) Dose in (Gy) = (energy absorbed)/(mass of the body) = ( 1.1*106*1.6*10-19)/(80) = 22*10-10 J/kg
Dose (in siverts) = RBE*Dose(in Gy) = 1.2*22*10-10 = 26.4*10-10
Answer: 1. The Epidermis. The epidermis is the water-resistant outer layer of skin and the body's first line of defense against environmental elements, ultraviolet, tradiation, bacteria, and other germs.30 ene. 2020
C. Mostly the spongy and also the compact
Answer:
Pulmonary valve regurgitation is the most probable cause.
Explanation:
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Answer:
16.The circulatory system is composed of in nerve cells and spinal cord: TRUE
17.Leucocytes plays vital role in the body's immune system: true
19.Cell body maintains the health of a neuron.: false
20.Brain is the main organ of the respiratory system
true
Explanation:
