A metal ball-bearing with a circumference of 41.6 mm weighs 9.43 g. What is the density of the metal in g/cm3 (V of a sphere = (4/3)πr3; circumference of a circle = 2πr)?

h let me think

c. electrical charges of ionic bonds.

c. orbital shape i hope this is correct

weight of any object is given by

w = m*g

where m is mass of the object and g is the acceleration due to gravity.

for earth the value of g is 9.8 m/s^2 so

w=117.6 n m=12 g=?

117.6=12g => g=9.8 m/s^2

which is the force of gravity on earth.