Glass bottle holds 500g of liquid at 40oC and only 300g at 70oC. Find the real cubic expansivity of the bottle. If the linear expanivity of glass is 0.0006K-1

What is the final velocity of the initial velocity of 25 and -50?

In science and physics what is the standard unit of measure for speed?

Which of the following correctly describes what happens when an atomic bomb explodes? small pieces of fissionable material are joined and form a body with a mass greater than the critical mass, the relative number of neutrons escaping decreases, and a chain reaction and explosion result. large pieces of fissionable matter are brought together quickly and form a body with a mass smaller than the critical mass, the relative number of escaping neutrons increases, and a chain reaction and explosion result.