M М.
M
15N
15 N
6N
30N
25 N
8N
8. Calculate the net forces acting on M, M and M, above
Mi Enelx= son-25n= 5n0²
M2 nelx= 151-15n = 0
y Enely &n-on = Znomis?
9. Which applies to the above masses: M1, M2, or MP Why?
Why?
M1, M2, or MBP
M2
M2
Question
Could be at rest
Has a negative acceleration
Has a positive acceleration
Has a net force of ON
Mas a net force (Fre 0)
Nas balanced forces
Could be changing direction
Has unbalanced forces
Could be moving at a constant speed

i guess that visual aids present persuasive examples to what you are presenting, some factors would be theme (does it fit with the color, information, what you are presenting), size (can you see it, is it a big enough span of data/information), and overall look of the visual aid.

hope this : )

so here is the information for current research:

-nrel's geothermal analysts, scientists, and engineers perform a full range of research from developing advanced methods of locating and accessing geothermal resources to exploring innovative technologies to extract and produce clean energy from the heat of the earth

and here is the information for the technology of geothermal energy:

-it's clean and sustainable

-resources of geothermal energy range from the shallow ground to hot water and hot rock found a few miles beneath the earth's surface, and down even deeper to the extremely high temperatures of molten rock called magma

-almost everywhere, the shallow ground or upper 10 feet of the earth's surface maintains a nearly constant temperature between 50° and 60°f (10° and 16°c)

-geothermal heat pumps can tap into this resource to heat and cool buildings

-a geothermal heat pump system consists of a heat pump, an air delivery system (ductwork), and a heat exchanger-a system of pipes buried in the shallow ground near the building

-in the winter, the heat pump removes heat from the heat exchanger and pumps it into the indoor air delivery system

-in the summer, the process is reversed, and the heat pump moves heat from the indoor air into the heat exchanger

-the heat removed from the indoor air during the summer can also be used to provide a free source of hot water

not too sure thinking all accelerations are pointed down