Ametal ball-bearing with a circumference of 45.1 mm weighs 11.6 g. what is the density of the metal in g/cm3 (v of a sphere = (4/3)ïr3; circumference of a circle = 2ïr)?

1) First of all, let's calculate the radius r of the ball-bearing. We know the value of the circumference:

From this, we can find the radius:


2) Now, let's find the volume:


3) Finally, we can calculate the density. We know the mass, , therefore we have

This is what i found on google “what happens to the bond angle when you add or remove an electron domain? the bond angle decreases as you add domains 5. can you force the atoms into new configurations by pushing atoms around? note: we can think of a bond or a lone pair of electrons as a “domain” of electrons.” i hope this you

I’m good with pshycology