One of the characteristic of sound enogy Similar
to light energy is?​

The slope of a velocity time graph over any interval of time gives the during that interval

Does anyone know how to solve this problem? i really need . i made an attempt but i just cant get it. a metal rod is 25.000 cm long at 25.0 degrees celsius. when heated to 102.0 degrees celsius, it is 25.054 cm long. what is the coefficient of linear expansion for this metal.

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.