quan sát dòng nước chảy chậm từ vòi nước xuống dưới, ta thấy nước bị thắt lại tức là ở gần vòi tiết diện dòng nước lớn hơn tiết diện phía dưới, tại sao?

false br

mass and volume are the answers you are looking for

what experimental evidence led scientists to change from the previous model to this one?

a few of the positive particles aimed at a gold foil seemed to bounce back.

the colors of light emitted from heated atoms had very specific energies.

experiments with water vapor showed that elements combine in specific proportions.

cathode rays were bent in the same way whenever a magnet was brought near them.