clc
clear 
disp("ck")

r_old=4
v_old=4*pi*r_old^3/3
v_new=1.4*v_old
r_new=(3*v_new/(4*pi))^(1/3)

a_old=4*pi*r_old^2
a_new=1.5*a_old

r_new2=sqrt(a_new/(4*pi))

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