Honey bees beat their wings, making a buzzing sound at a frequency of 2.3 × 10æ hertz. what is the period of a bee's wing beat?

a. 4.3x10^-3
b. 2.6 x10^-3
c. 4.0 x10^3
d. 2.6x10^3 seconds

The value of the period of the wave is the reciprocal of its frequency in hertz or 1/s. From the given above,
                        T = 1 / f = 1 / (2.3 x 10^3 1/s) = 4.35 x 10^-4 s
Thus, the answer is letter A. 

Answer: it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.explanation:   we have equation of motion ,where s is the displacement, a is the acceleration, u is the initial velocity and t is the time taken.average velocity = displacement/ time taken.average velocity = 10.69 miles/hr = 10.69*1.6*1000/(60*60) = 4.75 m/s4.75 = s/ts = 4. 1we also have acceleration = 2.18 m/s², initial velocity = 0 m/sso it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.