In a head-on collision between two vehicles, is there a force acting on the persons in the car that propels them toward the windshield? explain why or why not.

float.

archimedes' principle

denser than water sinks in water.

denser than mercury would sink in it

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.

conservation of mass

mass before something happens = mass afterwards