A 2 kg object slides down a frictionless surface inclined at an angle of 30o from the horizontal. The total distance moved by the object along the plane is 5 meters. - How much work was done on the object by the parallel component of its weight?
- How much work was done on the object by the perpendicular component of its weight
- How much work was done on the object by the normal force?

Asmall blob of putty of mass m falls from the ceiling and lands on the outer rim of a turntable of radius r and moment of inertia i0 that is rotating freely with angular speed ω0 about its vertical fixed-symmetry axis. (use any variable or symbol stated above as necessary.)

A1500 w electric heater is plugged into the outlet of a 120 v circuit that has a 20 a circuit breaker. you plug an electric hair dryer into the same outlet. the hair dryer has power settings of 600 w, 900 w , 1200 w, and 1500 w. you start with the hair dryer on the 600 w setting and increase the power setting until the circuit breaker trips. under what setting does the circuit breaker trip.

Which wave is the result of amplification and produces a louder sound