How or no 320N
0.16 m2
What is the pressure exerted on the heel of a boy’s foot if the boy weighs 320N and he lands on one heel which had an area of 0.16m2

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer

1 is the answer to this problem

answersilicon (si); oxygen (o);