vi) The random noise level of a buzzing bee is 42 dB and that heard in...
vi) The random noise level of a buzzing bee is 42 dB and that heard in a typical beehive is 78 dB. How many bees are there in the bee hive ? (3) 41(2): 10 lo7 (2) Itoy = n I, vii) What is the charge to mass ratio (C/kg) when an ion with unknown charge and mass has moved through a potential of 10 kV and is observed to move in an 84 cm radius circular orbit perpendicular to a field 3.717 (3) Tokv 0.84 m 377 viii) Two loudspeakers are separated by d = 1.5 m and are driven in phase at 566.67 Hz. An engineer walks in a circular path of R=20 m radius, centered between the speakers, with a sound level meter around speakers. She locates positions of maximum and minimum (antinodes and nodes) sound levels. How many Nodes and Antinodes will she detect while walking one complete circuit? d = 1.5 m R= 20 m