Its impossible to say 'Good eye might" without saying in in an australian accent

In raising a 6200-n piano with a pulley system, the movers note that, for every 2.2 m of rope pulled down, the piano rises 0.12 m . ideally, find the force required to lift the piano.

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is

In a good thermo flask the main cause of heat loss is