The activity of k 40 in a 70 kg human body is estimated to be 120 nci what is this activity in becquerels

The activity of a sample is determined in terms of the number of nuclear disintegrations in a second. The Curie or Ci is a common unit for activity measurement. Bq or Becquerel refers to the SI unit for radiation activity measurement.  

The activity of K-40 in 70 kg human body is 120 nCi

The relationship between Curie and Becquerel are as follows:  

1Ci = 3.7 × 10¹⁰ Bq

1nCi = 37 Bq

Thus, 120 nCi × 37 Bq / 1nCi = 4.4 × 10³ Bq.  

Hence, the activity of K-40 in a 70 Kg human body is 4.4 × 10³ Bq .

the function of the protein macromolecule is to move things in and out of the cell and transport other molecules in the body. there are many functions of proteins. they are the basic building blocks of living things and are responsible for the growth and repair of body cells and tissues.

explanation:

the most common type of reef is the fringing reef. this type of reef grows seaward directly from the shore. they form borders along the shoreline and surrounding islands.