Find the minimum uncertainty in the speed of a red blood cell having mass 1e-13 kg if we know the position of the red blood cell to within 8e-06 m, that is, to about its own size.

Consider two metallic rods mounted on insulated supports. one is neutral, the other positively charged. you bring the two rods close to each, but without contact, and briefly ground the the neutral rod by touching it with your hand. show answer correct answer what would be resulting charge (if any) on the initially neutral rod

Determine the force the sun exerts on an object with a mass of 80.0 kg if that object is on the earth. what is the force exerted by the moon on the same object? what is the force the earth exerts on it?

Why do metals "give up" their valence electrons?