Antoine Lavoisier (1743-1794) montra qu'en brûlant du soufre solide dans l'air, le produit de la réaction (également solide) pesait plus lourd que le soufre solide mais que la masse gagnée était perdue par l'air. • Expliquer pourquoi cette expérience n'entre pas en contradiction avec la loi de la conservation de la masse lors d'une réaction chimique.

1. how to locate the image in converging(concave) mirror and diverging (convex) mirror with salt. 2. how to locate the image in a converging (convex) lens and diverging (concave) lens with salt.

During the experiment if you could triple the breakaway magnetic force with all other quantities left unchanged, what is the new value for the critical velocity if it was v0 (initial velocity), initially? (b) now if you halved the radius with all other quantities left unchanged, what is the new critical velocity if it was v0 (initial velocity), initially? (c) if during the experiment, critical velocity quadrupled with all other quantities left unchanged, what is the new breakaway force if its magnitude was initially f0,?

What effect does the sun have on the earth. written response