Kelli has a mass of 42-kg, and she is sitting on a playground swing that hangs 4m above the ground. Her mom pulls the swing back and releases it when the seat is 1 meter above the ground. How fast is Kelli moving when
the swing passes through its lowest point?

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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here are some information of the future of geothermal energy:

-the future of geothermal energy can pretty much be summed up with a single word: more

-scientists plan in going deeper than 120 meters

-we are hoping that one day, we will get all of our energy from renewable energy sources such as geothermal energy

hope this !