A sample of water changes states from liquid to solid. The of the water, when it is a liquid, is the same as when it is solid what word completes the sentence

Why do scientists believe that light is made of streams of particles? scientists believe that light is made of streams of particles because only the presence of photons can explain phenomena observed during experiments on the photoelectric effect. these observations include only some frequencies of light causing the ejection of electrons, no time gap existing between light striking a metal and electrons being ejected, and intensity having no effect on the kinetic energy of the ejected electrons.

In which of the following cases is work being done on an object? question 2 options: pulling a trailer up a hill carrying a box down a corridor suspending a heavy weight with a strong chain pushing against a locked door

Crowbar of 5 metre is used to lift an object of 800 metre if the effort arm is 200cm calculate the force applied