Wave speed = (wavelength) x (frequency)
= (4 m) x (2 /sec)
= 8 m/sec
Answer:
ecosystem B
Explanation:
because it goes through more animal's and is correct
SinA = 1000/2000 = 1/2
A = arsSin(1/2)
A = 30 degrees
Component ' W ' is the standard schematic symbol for a switch.
The short line between the two circles can be shown straight,
like it is now, when the switch is 'closed' and current can flow.
Or, it can also be drawn slightly tilted, so it's not touching one
of the circles. In that case, the switch is 'open', no current can
flow through it, and the whole circuit is shut down.
