Un peso da pesca di 100 g è tenuto in rotazione
su un piano orizzontale da un filo di nylon lun-
go 1,2 m. Il pesetto compie un giro in 0,40 s.
Calcola:
• la frequenza del moto;
• l'accelerazione centripeta cui il pesetto è sot-
toposto espressa in unità g. [2,5 Hz; 30 g]
Answers: 3
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A100-watt light bulb illuminates a solar cell. the electricity from the solar cell operates a water pump that delivers 1 watt of power. what is the efficiency of the system?
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su un piano orizzontale da un filo di nylon lun-
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