Sentences with phrase «energy of a tennis ball»

- the kinetic energy of a tennis ball moving at 23 km / h (14 mph).

Not exact matches

«If you take a tennis ball and you throw it against a wall, you don't expect it to come back with more energy,» says Silke Weinfurtner of the University of Nottingham in England, who led the study.
He has lots of energy, loves to take daily walks and chase tennis balls.
Consider investing in a tennis - ball thrower: this is a great way of playing with your dog, as well as chalking up the necessary miles (without you having to expend an unnatural amount of energy doing so!).
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