To answer the question above,
First, let's determine the speed of sound under the water.
S
peed of sound in water at 20oC = 1482m/s
<span>So λ = v/f = 1482m/s/(100kHz) I'm assuming your frequency is 100kHz </span>
<span>So λ would be = 0.0148m
I hope my answer helped you.</span>
Answer:
the si unit of electric current is Ampere .the flow of charge in a close circuit is called electric current
Well,
For the first one, the answer would be C, because all organisms in Kingdom Animalia must eat in order to survive.
For the second one, all of the options are in Kingdom Animalia, but worms (A) and clams (C) are invertebrates. So that leaves options B and D.
