Amolecule of roughly spherical shape has a mass of 6.10 × 10-25 kg and a diameter of 0.70 nm. the uncertainty in the measured position of the molecule is equal to the molecular diameter. what is the minimum uncertainty in the speed of this molecule? (h = 6.626 × 10-34 j · s)

An object weigh 40n in air ,weigh 20n when submerged in water,and 30n when submerged in a liquid of unknown liquid density.what is the density of unknown of liquid?

The magnitude of the magnetic field at a certain distance from a long, straight conductor is represented by b. what is the magnitude of the magnetic field at twice the distance from the conductor? a. at twice the distance, the magnitude of the field is 4b.b. at twice the distance, the magnitude of the field is 2b.c. at twice the distance, the magnitude of the field is b/2.d. at twice the distance, the magnitude of the field is b/4.e. at twice the distance, the magnitude of the field remains equal to b.

When a metal and an bond they do not share electrons