Can anyone me the number of e-mails sent each day in the united states is measured in the thousands. a. true b. false

The answer is false.

The answer is  a.0.32 km.

the speed that a tsunami can travel is modeled by the equation is s = 356√d.

it is given:
s = 200 km/h
d = ?

now, let's substitute s in the equation and find d:
s = 356√d
200 = 356√d
√d = 200  ÷ 356
√d = 0.562

now, let's square both sides of the equation:
(√d)² = (0.562)²
d = (0.562)² = 0.316  ≈ 0.32

therefore,    the approximate depth (d)  of water for a tsunami traveling at 200 kilometers per hour is 0.32 km.