20. A curslant force pushes on u brick, as shown belum
If there were two bricks of the same mass, as shown below what would happen to the acceleration at
the bricks if the same force pushed them?
b
If there were three bricks, as shown below, what would happen to the acceleration of the bincks if the
same force pushed them?

The small bags of silica gel you often see in a new shoe box are placed there to control humidity. despite its name, silica gel is a solid. it is a chemically inert, highly porous, amorphous form of sio2. because water vapor readily adsorbs onto the surface of silica gel, it acts as a desiccant. despite not knowing mechanistic details of the adsorption of water onto silica gel, from the information provided you should be able to make an educated guess about the thermodynamic characteristics of the process. predict the signs for δg, δh, and δs for the adsorption of water.