Your neighborhood friend invites you to swim in their pool for exercise. You're surprised to see how big their backyard is. The pool is a perfect circle. You use the ladder at the edge and swim exactly 4 laps around the circumference of the pool. You're even more surprised to see your neighbor has a giraffe in their backyard. You're scared of giraffes. From the edge of the pool, it only takes you 1.54 to go straight to the exact middle of the pool. Fortunately, you are 4.1 meters from the edge and the giraffe can only reach 3.4 meters. Time to wait for your friend to come help. How many meters of distance did you actually swim in your exercising? It may help to draw a picture. Remember the formula for circumference of a circle.

potential energy is directly proportional to height.

more height = more potential energy.

greatest increase in height = greatest increase in potential energy

where are the points with the greatest increase in height ?

has to be c-e or d-e .

the simple machine has three main features. they are:

fulcrum is the center point or pivot point of the machine. effort is input force/ applied force. load is external force/ output.

the keisha 's machine labels are

x : load

y: fulcrum

z: lever

a straight line sloped

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.