Explain how energy can be transformed back and forth between potential and kinetic energy in a yo-yo. does the total amount of energy in the yo-yo stay the same?

The potential energy would be holding the yo-yo as the kinetic would be throwing it down and getting it back up

total distance travelled = 60 miles

total time taken =1.5 hours

average speed = total distance / total time

60 / 1.5

= 40

therefore, average speed = 40 m/h

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find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2