What are 2 ways gravitational potential energy affects us

Hey,

Gravitational potential energy is the energy of which something has depending upon how far away it is from the center of gravitation. For example, a piano would have just a sliver of GPE (gravitational potential energy) if it were only a centimeter above the ground, but if it were a mile above the ground it would go out with a bang.

The first way GPE affects our lives is a waterfall. You see, the water atop the waterfall is being pulled towards the earth and as it is it spreads out. Then it falls off the cliff and its GPE turns into GKE (gravitational kinetic energy, when soemething actually starts to fall) as it falls. If it weren't for GPE waterfalls couldn't exist.

The perfect example would be Newton's famous apple. as the apple hung from its tree, gravity pulled on it, and eventually, it fell. Its GPE turned into GKE as it fell towards Newton's head. Then came the realization of gravity to Newton.

If you have any questions i DEMAND that you tell me!

Wbob1314

answer: there are 453.592 grams in a pound.

when functions are first introduced, you will probably have some simplistic "functions" and relations to deal with, usually being just sets of points. these won't be terribly useful or interesting functions and relations, but your text wants you to get the idea of what the domain and range of a function are. small sets of points are generally the simplest sorts of relations, so your book starts with those.

step-by-step explanation:

state the domain and range of the following relation. is the relation a function?

{(2, –3), (4, 6), (3, –1), (6, 6), (2, 3)}

the above list of points, being a relationship between certain x's and certain y's, is a relation. the domain is all the x-values, and the range is all the y-values. to give the domain and the range, i just list the values without duplication:

domain: {2, 3, 4, 6}

range: {–3, –1, 3, 6}

(it is customary to list these values in numerical order, but it is not required. sets are called "unordered lists", so you can list the numbers in any order you feel like. just don't duplicate: technically, repetitions are okay in sets, but most instructors would count off for this.)

while the given set does indeed represent a relation (because x's and y's are being related to each other), the set they gave me contains two points with the same x-value: (2, –3) and (2, 3). since x = 2 gives me two possible destinations (that is, two possible y-values), then this relation is not a function.

note that all i had to do to check whether the relation was a function was to look for duplicate x-values. if you find any duplicate x-values, then the different y-values mean that you do not have a function. remember: for a relation to be a function, each x-value has to go to one, and only one, y-value.

state the domain and range of the following relation. is the relation a function?

{(–3, 5), (–2, 5), (–1, 5), (0, 5), (1, 5), (2, 5)}

i'll just list the x-values for the domain and the y-values for the range: