Two objects attract each other gravitationally with a force of 3.1×10−10 N when they are 0.55 m apart. Their total mass is 5.0 kg . Find their individual masses.

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.

float.

archimedes' principle

denser than water sinks in water.

denser than mercury would sink in it