Match the tool to the simple machine. exit ramp
crane
Wheelbarrow
nutcracker
ice pick
elevator

Pulley

Second-class Lever

Wedge

Inclined Plane​

The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody

Wiy doeres rere okhn a pump whon working betwon the same pressure range?

An electrical kettle is made out of stainless steel,weighs two pounds (when empty) with a heating element that consumes 2 kw of electricity. assuming that the water and the kettle are at the same uniform temperature at any moment of time, calculate the shortest possible time to bring 2 quarts of water from room temperature to the onset of boiling.