i was wondering that can the speed of sound be lowered than the normal 335m/s in air without changing the air conditions? let's say u spoke in a low voice, will the sound still travel at 335m/s? will all air waves travel at that speed. no matter how weak or strong they are?
how do i measure temperature of a current carrying conductor? i need to know the increase in temperature as i heat it up by passing a current through it. i read somewhere that i could use heat transfer convection equations to find it, but then i would need the precise value of the heat transfer...
1.) if there are two blocks of different masses rolling down an inclined plane, will their velocity be same? if so then how? there's no friction between the plane and the blocks.
2.) there is a plastic boat in a tub, filled with metal rods. if the metal rods are taken out of the boat and put...