A scientist is testing a fertilizer used to make corn grow taller. The scientist adds different amounts of fertilizer to each field. He then measures the height
of the corn in each field. What is the manipulated variable in this experiment?
A. The height of the corn
B. The amount of fertilizer
C. The number of experiment groups
D. The number of pieces of corn

Agas contained within a piston-cylinder assembly undergoes three processes in series: process 12: compression with pv= constant from 1 bar and 1 liter to 4 bar. process 23: constant pressure expansion to 1 liter. process 31: constant volume calculate the pressure and volume at each state, and sketch the processes on a p-vdiagram labeled with pressure and volume values at each numbered stat

An initially unpolarized light if intensity 500 w/m^2 passes through four polarizers. the transmission axis between adjacent polarizers is 45∘. what percentage of the initial intensity is transmitted by the system?

Debbie places two shopping carts in a cart corral she pushes the first cart which then pushes a second cart what force is being exerted