Un bloque de queso se está deslizando hacia arriba en una superficie que no es lisa. V
¿Cuál es el diagrama de fuerzas correcto para el bloque de queso?

Athermometer to measure the temperature of course 

Sounds propagates through some kind of medium. usually it's air, but it goes just as well through solid objects like walls, windows etc. a soundwave will compress the (air)molecules in front of it, and if this increased density wave hits your ears, you register it as sound. solid objects like walls are a lot denser than air, this means that they will damp a wave, but also carry it easier.

i hope i

D. engine-coolant temperature is the answer : ) =)