Micah is investigating the transformation between potential and kinetic energy within a system. he uses a swinging pendulum in his investigation. he records his observations of the pendulum at different positions and creates the table below.

kinetic and potential energy of a pendulum

position kinetic energy (joules) potential energy (joules)

1 0 50

2 25 25

3 50 0

4 25 25

5 0 50

which statement best describes the energy transformation in michah's investigation?

the total energy of the system is maintained as energy is transformed.

the total energy of the system increases as kinetic energy is created.

the total energy of the system decreases as potential energy is destroyed.

the total energy of the system changes as energy is added to it.

How can a give a full method for the experiment of separating sand from water by filtration? 1-materials 2-steps 3-conclusion also for water and salt separated by the evaporation or distillation process

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.

Description: biological systems 5 differ from chemical systems when it comes to equilibrium. in a chemical system once equilibrium is met, no other reactions occur. in a biological system, a dynamic equilibrium is used when a substrate is turned into a product, another reaction creates the same substrate thus keeping the concentrations stagnant. this allows for cells to continually make new compounds without messing the delta g for the systems instructions: write a response to the following prompt and then respond to your peers. your individual response is due thursday at midnight (cst) your response to your peers is due saturday at midnight (cst) prompt: propose what would happen if a living cell all the sudden reached chemical equilibrium. also discuss the effects of build up of a particular substrate on a biological system. how would this affect overall delta g's?