The figure shows two forces acting on an object, with magnitudes F1 = 78 N and F2 = 26 N. What third force will cause the object to be in equilibrium?*

A)52N pointing down
B)53N pointing up
C)104N pointing up
D) 104N pointing down
I need this fast

The experiment was repeated many years later but the gases were mixed in a different type of container. a white solid was obtained which was xenon fluoride. predict whether you think 1) krypton and 2) radon will react with fluorine. explain reasons for your predictions

With physics question #5? for any !

Five structural isomers have the formula c6h14. where needed, draw the structure and give the iupac name of all five isomers.