What happens to the strength of magnetic field as you move away from the magnet? a. the strength of the magnetic field increases b. the strength of the magnetic field decrease c. the strength of the magnetic field doesn’t change

Which statement justifies that phosphine (ph3) is a polar molecule?

Astudent carefully transfers 30 g of water and 30 g of alcohol in a glass tube, forming two layers and filling the tube completely. after sealing the tube, the student mixes the solutions, and notices a bubble that forms in the tube. what is the mass of the contents in the glass tube after mixing?

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here