Sagot :
Answer:
Rubber at 60m/s
Explanation:
It takes more energy to make large molecules vibrate than it does to make smaller molecules vibrate. Thus, sound will travel at a slower rate in the more dense object if they have the same elastic
properties
Answer:
rubber
Explanation:
Rubber is a material, which can stretch and shrink. It is a polymer. It can be produced from natural sources (e.g. natural rubber) or can be synthesised on an industrial scale. Many things are made from rubber, like gloves, tires, plugs, and masks. A few things can be made only from rubber.