The sound emitted by bats has a wavelength of 4.13 mm.
What is the frequency in air? The speed of sound in air is 343 m/s.

the frequency of a wave is equal to the linear speed divided the wavelength. so in equation form.

f = v / l

where f is the frequency

v iss the linear speed

l is the wavelength

f = ( 345 m/s ) / ( 4.38 mm ) ( 1 m / 1000 mm )

f = 78767 per second

Explanation:

hope it helps

dec 23, 2016 - a load of bricks weighing 680 n a distance of 10 m across a parking lot. if if the worker pushes the cart with a constant force of 209 n, what work= force x distance = 220 n x 10 m = 2200 n.m = 2200 j i don't know where the person got it from, but the initial part, work= force x distance me.