To navigate, a porpoise emits a sound wave that has a wavelength of 3.3 cm. the speed at which the wave travels in seawater is 1522 m/s. find the period of the wave.

Explanation:

We are given that  

The wavelength of sound wave=

1 cm/s=

Speed of sound wave,v=

We have to find the period of the wave.

We know that

Frequency=

Using the formula

Frequency = Hz

Time period=

Using identity:

Hence, the time period of the wave=

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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.