14.1 Independent variable Alcohol (1)
1.42 Dependant variable Smeu arte ester
1.43 Control variable Carboxync 06
e
Write down an equation using structural formulae to show the esterification reaction between
propan-1-ol and propanoic acid.
(5)​

When a book falls from a shelf to the ground without anyone pushing on it, no work is done on the book. true or false

Two polarizers are oriented at 40∘ to each other and plane-polarized light is incident on them. if only 16 percent of the light gets through both of them, what was the initial polarization direction of the incident light?

Select all of the following that are equal to an impulse of 20 unitsa) force= 5, time= 5.5b) force= 25, time= 0.8c) force= 0.1, time= 200d) force= 10, time= 2(its b, c, and d)(also in order to find answer they have to add to get the unit)ex= 25x.8=20 or .1x200=20