A sphere of diameter 7.9 cm is completely submerged in water and ...

[j.rubin]

A sphere of diameter 7.9 cm is completely submerged in water and seems to weigh 32.0 less in the water than out of it.
 
  (a) What is the density of the sphere?
  (b) If the sphere had been twice as dense, it would have weighed what  less in water than out?

Question 2

Kirchhoff's voltage rule for a closed loop is an example of
 
  A) conservation of energy.
  B) conservation of charge.
  C) conservation of momentum.
  D) conservation of force.

[pikon]

Answer to Question 1

(a) 3.13  103 kg/m3
(b) 16.0 less

Answer to Question 2

A

[j.rubin]

TYSM

[ktidd]

Gracias!