lefunland playgrounds equipment,lefunland indoor playground ground,lefunlandindoor kids trampolines

Play equipment, is currently in the country, still in the early stages, mainly in the small playground equipment play areas, equipment, single, small number of people to participate, many people are not able to enjoy the fun play equipment. So play equipment market outlook is still very great! To operate amusement equipment, the election Ze venue crucial; course also need to have a good playground equipment supplier.

2013年11月6日星期三

Children from slide down, gravitational potential energy into kinetic energy, the accord with energy conservation?

Children from playground slidesdown it is not about the law of conservation of energy, children most of the gravitational potential energy into kinetic energy, but also part of the gravitational potential energy into internal energy (friction power is converted to internal energy)

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3D-kidsland

2013年11月6日星期三

Children from slide down, gravitational potential energy into kinetic energy, the accord with energy conservation?

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