The gravitational force between two spheres is 2.50 x 10-8 N. Their centers are 1.05 m apart. The smaller sphere has a mass of 8.2 kg. Find the mass of the larger sphere.

Determine the maximum r-value of the polar equation r =3+3 cos 0

A1.5m wire carries a 2 a current when a potential difference of 52 v is applied. what is the resistance of the wire?

Aswimming pool whose volume is 10 comma 000 gal contains water that is 0.01% chlorine. starting at tequals0, city water containing 0.003% chlorine is pumped into the pool at a rate of 5 gal/min. the pool water flows out at the same rate. what is the percentage of chlorine in the pool after 1 hour? when will the pool water be 0.006% chlorine?