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A jolly rocker is a play equipment commonly found in playgrounds, consisting of a curved metal or wooden seat attached to a fulcrum. Users sit on each end of the seat, and by pushing off with their feet, they can create a rocking motion. This encourages social interaction and helps develop coordination and balance skills in users.

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How much does Mrs Santa Claus weigh?

As Mrs. Santa Claus is a fictional character, her weight is not specified. In folklore and depictions, she is typically portrayed as a plump and jolly figure, reflecting characteristics associated with Santa Claus himself.


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Input work is the work done on a machine, while output work is the work done by the machine. Efficiency of a simple machine is calculated as the ratio of output work to input work. The efficiency of a simple machine is high when the output work is close to the input work, indicating that the machine is converting most of the input work into useful output work.


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The formula that relates work and power is: Power = Work / Time. Power is the rate at which work is done, which is the amount of work done divided by the time it takes to do that work.